Custom Glass & Mirror Calculator
Give your glass and mirror shop a calculator that prices the way a glazier does. The customer picks a mirror, back-painted glass, clear glass or a frameless shower. A pane gets its width and height in inches, shape, thickness, edge, mounting holes, outlet cutouts, tint or paint color, tempering, LED backlight and an anti-fog pad, and is priced by the square foot with a billable minimum, percentage surcharges for thickness, curved cutting, tint and tempering, edgework and LED by the linear foot, holes and cutouts by the piece, plus installation, delivery or pickup and a discount from three pieces. A shower is built from its layout (single door, door and inline panel, 90-degree corner, neo-angle, bypass slider) with glass thickness, low-iron glass and hardware in four finishes, priced as glass by the square foot, a hardware set per layout, installation, removal of the old enclosure and a protective coating. Every rate is a constant you edit in one place, and the customer leaves their details and downloads a Letter-size PDF estimate.
Try the Calculator
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export function customGlassCalculator(form: FormTs) {
// Timing promised to the customer (business days)
const timing = {
leadDays: 7, // mirrors and glass ready after the confirmed size
showerDays: 15, // shower installed after the measure
measureDays: 3 // free on-site measure within
};
// Promotion on the whole order, on top of the quantity discount (0 hides the banner)
const promotion = {
percent: 0,
name: 'Free polished edges this month'
};
// Glass prices per square foot at 1/4 in
const glassRates: Record<string, number> = {
'mirror': 14,
'painted': 42,
'glass': 16
};
const paneRules = {
minimumSqft: 3, // the smallest area a pane is billed for
minimumOrder: 125 // smaller orders are billed at this amount
};
// Percent surcharges on the glass
const surcharges = {
thickness38: 45,
thickness12: 90,
curvedCut: 30, // any shape other than a rectangle
lowIron: 30,
frosted: 35,
bronze: 20,
tempered: 35
};
// Edgework and LED by the linear foot of the perimeter
const perFoot = {
polishedEdge: 3,
bevelEdge: 7,
led: 28
};
// Per-piece extras
const perPiece = {
hole: 12,
cutout: 28,
defogPad: 70
};
// Frameless showers
const shower = {
sqft: 44, // 3/8 in clear tempered, polished edges
thickness12Pct: 30,
doorHardware: 340, // hinges, ladder pull, seals (polished chrome)
panelClamps: 95, // per fixed panel
sliderHardware: 560, // header bar, rollers, guide, pulls
nickelPct: 10,
blackPct: 20,
goldPct: 35,
installation: 480,
coating: 175,
removal: 150
};
// Delivery and installation of panes
const service = {
installPerPane: 85,
delivery: 65,
freeDeliveryFrom: 600
};
const quantityDiscount = {
fromPieces: 3,
percent: 7
};
const money = (value: number) => {
const rounded = Math.round(Math.abs(value));
const whole = String(rounded).replace(/\B(?=(\d{3})+(?!\d))/g, ',');
return (value < 0 ? '-' : '') + '$' + whole;
};
const nameOf = (map: Record<string, string>, key: string) => map[key] ?? key;
const inches = (value: number) => (Math.round(value * 2) / 2) + ' in';
const KINDS: Record<string, string> = { 'mirror': 'Mirror', 'shower': 'Frameless shower enclosure', 'painted': 'Back-painted glass', 'glass': 'Clear glass' };
const SHAPES: Record<string, string> = { 'rectangle': 'rectangle', 'rounded': 'rounded corners', 'circle': 'circle', 'oval': 'oval' };
const EDGES: Record<string, string> = { 'seamed': 'seamed edge', 'polished': 'flat polished edge', 'beveled': '1 in bevel' };
const THICKNESSES: Record<string, string> = { '0.25': '1/4 in', '0.375': '3/8 in', '0.5': '1/2 in' };
const TINTS: Record<string, string> = { 'clear': 'clear', 'lowiron': 'low-iron', 'frosted': 'frosted', 'bronze': 'bronze tint' };
const PAINTS: Record<string, string> = { 'white': 'white', 'gray': 'gray', 'charcoal': 'charcoal', 'black': 'black', 'sage': 'sage' };
const LAYOUTS: Record<string, string> = { 'door': 'single door', 'inline': 'door and inline panel', 'corner': '90-degree corner', 'neo': 'neo-angle', 'sliding': 'bypass slider' };
const FINISHES: Record<string, string> = { 'chrome': 'polished chrome', 'nickel': 'brushed nickel', 'matteblack': 'matte black', 'gold': 'brushed gold' };
const SERVICES: Record<string, string> = { 'install': 'delivered and installed', 'delivery': 'delivered, no installation', 'pickup': 'pickup at our shop' };
const headerStyles: CustomStyles = { 'font-size': '1.5rem', 'font-weight': '600', 'color': '#1e293b' };
const stepStyles: CustomStyles = { 'font-size': '1.1rem', 'font-weight': '600', 'color': '#1e293b' };
const hintStyles: CustomStyles = { 'font-size': '0.9rem', 'color': '#64748b' };
const infoStyles: CustomStyles = { 'font-size': '0.9rem', 'color': '#0369a1', 'background': '#e0f2fe', 'padding': '10px', 'border-radius': '6px' };
const warningStyles: CustomStyles = { 'font-size': '0.9rem', 'color': '#9a3412', 'background': '#ffedd5', 'padding': '10px', 'border-radius': '6px' };
const successStyles: CustomStyles = { 'font-size': '0.95rem', 'color': '#166534', 'background': '#dcfce7', 'padding': '10px', 'border-radius': '6px', 'font-weight': '500' };
form.addRow(row => {
row.addTextPanel('header', {
computedValue: () => 'Custom Glass & Mirror Estimate',
customStyles: headerStyles
});
});
form.addRow(row => {
row.addTextPanel('intro', {
computedValue: () => 'Mirrors, back-painted glass, clear glass and frameless showers in inches. Priced by the square foot and linear foot, the way a glazier prices them.',
customStyles: hintStyles
});
});
form.addSpacer({ height: 10 });
const pages = form.addPages('steps');
// Step 1: Product
const productPage = pages.addPage('product');
productPage.addRow(row => {
row.addTextPanel('productTitle', {
computedValue: () => 'Step 1 of 4: Product',
customStyles: stepStyles
});
});
const productSection = productPage.addSubform('product', { title: 'What are we making for you?', isCollapsible: false });
productSection.addRow(row => {
row.addRadioButton('kind', {
label: 'Product',
options: [
{ id: 'mirror', name: 'Mirror - bathroom, vanity, closet and wall mirrors, with LED if you like (' + money(glassRates['mirror'] ?? 0) + '/sq ft)' },
{ id: 'shower', name: 'Frameless shower - heavy tempered glass, no frame, installed by our crew (' + money(shower.sqft) + '/sq ft)' },
{ id: 'painted', name: 'Back-painted glass - kitchen backsplashes and wall panels in any color (' + money(glassRates['painted'] ?? 0) + '/sq ft)' },
{ id: 'glass', name: 'Clear glass - splash panels, tabletops and shelves cut to size (' + money(glassRates['glass'] ?? 0) + '/sq ft)' }
],
defaultValue: 'mirror',
orientation: 'vertical',
isRequired: true
});
});
const kind = form.computedValue(() => productSection.radioButton('kind')?.value() || 'mirror');
const isShower = form.computedValue(() => kind() === 'shower');
const isMirror = form.computedValue(() => kind() === 'mirror');
const isPane = form.computedValue(() => !isShower());
productSection.addRow(row => {
row.addTextPanel('measureInfo', {
computedValue: () => isShower()
? 'We measure every shower ourselves. Walls and curbs are rarely plumb, so the glass is cut only after our free on-site measure, within '
+ timing.measureDays + ' business days. The sizes you pick here give you the price.'
: 'The size is final. Glass cut to your size cannot be returned or recut. For a first order we recommend our free on-site measure, within '
+ timing.measureDays + ' business days.',
customStyles: warningStyles
});
});
// Step 2: Configuration
const configPage = pages.addPage('config');
configPage.addRow(row => {
row.addTextPanel('configTitle', {
computedValue: () => isShower() ? 'Step 2 of 4: Layout and size' : 'Step 2 of 4: Size and finish',
customStyles: stepStyles
});
});
// Pane: size, shape, thickness, edge, holes, extras
const paneSection = configPage.addSubform('pane', {
title: 'Size and finish',
isCollapsible: false,
isVisible: () => isPane()
});
paneSection.addRow(row => {
row.addSlider('width', {
label: 'Width',
unit: 'in',
min: 12,
max: 96,
step: 1,
defaultValue: 36,
tooltip: 'For a circle, the smaller side is the diameter'
}, '1fr');
row.addSlider('height', {
label: 'Height',
unit: 'in',
min: 12,
max: 84,
step: 1,
defaultValue: 30,
tooltip: 'The finished size of the pane'
}, '1fr');
});
paneSection.addRow(row => {
row.addRadioButton('shape', {
label: 'Shape',
options: [
{ id: 'rectangle', name: 'Rectangle (included)' },
{ id: 'rounded', name: 'Rounded corners (+' + surcharges.curvedCut + '%)' },
{ id: 'circle', name: 'Circle (+' + surcharges.curvedCut + '%)' },
{ id: 'oval', name: 'Oval (+' + surcharges.curvedCut + '%)' }
],
defaultValue: 'rectangle',
orientation: 'vertical'
}, '1fr');
row.addRadioButton('edge', {
label: 'Edge',
options: [
{ id: 'seamed', name: 'Seamed (included)' },
{ id: 'polished', name: 'Flat polish (+' + money(perFoot.polishedEdge) + '/ft)' },
{ id: 'beveled', name: '1 in bevel (+' + money(perFoot.bevelEdge) + '/ft)' }
],
defaultValue: 'polished',
orientation: 'vertical'
}, '1fr');
});
paneSection.addRow(row => {
row.addDropdown('thickness', {
label: 'Thickness',
options: [
{ id: '0.25', name: '1/4 in: mirrors, backsplashes, panels' },
{ id: '0.375', name: '3/8 in: shelves and splash guards (+' + surcharges.thickness38 + '%)' },
{ id: '0.5', name: '1/2 in: tabletops and freestanding panes (+' + surcharges.thickness12 + '%)' }
],
defaultValue: '0.25'
}, '1fr');
row.addInteger('pieces', {
label: 'Pieces of this size',
min: 1,
max: 10,
defaultValue: 1,
tooltip: quantityDiscount.percent + '% off from ' + quantityDiscount.fromPieces + ' pieces of the same size and finish'
}, '1fr');
});
paneSection.addRow(row => {
row.addRadioButton('tint', {
label: 'Glass',
options: [
{ id: 'clear', name: 'Clear (included)' },
{ id: 'lowiron', name: 'Low-iron (+' + surcharges.lowIron + '%)' },
{ id: 'frosted', name: 'Frosted (+' + surcharges.frosted + '%)' },
{ id: 'bronze', name: 'Bronze tint (+' + surcharges.bronze + '%)' }
],
defaultValue: 'clear',
orientation: 'vertical',
isVisible: () => kind() === 'glass'
}, '1fr');
row.addRadioButton('paint', {
label: 'Paint color',
options: [
{ id: 'white', name: 'White' },
{ id: 'gray', name: 'Gray' },
{ id: 'charcoal', name: 'Charcoal' },
{ id: 'black', name: 'Black' },
{ id: 'sage', name: 'Sage' }
],
defaultValue: 'charcoal',
orientation: 'vertical',
tooltip: 'Any other color matched to a paint chip on request',
isVisible: () => kind() === 'painted'
}, '1fr');
});
paneSection.addRow(row => {
row.addInteger('holes', {
label: 'Mounting holes (' + money(perPiece.hole) + ' each)',
min: 0,
max: 4,
defaultValue: 0,
tooltip: 'Drilled for standoffs or clips'
}, '1fr');
row.addInteger('cutouts', {
label: 'Outlet cutouts (' + money(perPiece.cutout) + ' each)',
min: 0,
max: 3,
defaultValue: 0,
tooltip: 'For an outlet or a switch; rectangles and rounded corners only',
isVisible: () => {
const shape = paneSection.radioButton('shape')?.value();
return shape !== 'circle' && shape !== 'oval';
}
}, '1fr');
});
paneSection.addRow(row => {
row.addCheckbox('led', {
label: 'LED backlight (' + money(perFoot.led) + ' per linear foot of the edge, driver included)',
defaultValue: false,
isVisible: () => isMirror()
}, '1fr');
row.addCheckbox('defog', {
label: 'Anti-fog pad (' + money(perPiece.defogPad) + ', keeps the mirror clear after a shower)',
defaultValue: false,
isVisible: () => isMirror()
}, '1fr');
});
paneSection.addRow(row => {
row.addCheckbox('tempered', {
label: 'Tempered safety glass (+' + surcharges.tempered + '%): required behind a cooktop, recommended for tabletops',
defaultValue: false,
isVisible: () => kind() === 'glass' || kind() === 'painted'
});
});
// Shower: layout, sizes, glass, hardware
const showerSection = configPage.addSubform('shower', {
title: 'Layout, glass and hardware',
isCollapsible: false,
isVisible: () => isShower()
});
showerSection.addRow(row => {
row.addRadioButton('layout', {
label: 'Shower layout',
options: [
{ id: 'door', name: 'Single door - one swinging door between two walls' },
{ id: 'inline', name: 'Door and inline panel - a fixed panel beside the door, the most common' },
{ id: 'corner', name: '90-degree corner - door in front, a return panel on the side' },
{ id: 'neo', name: 'Neo-angle - a door on the angle between two panels' },
{ id: 'sliding', name: 'Bypass slider - two panes, one rolls past the other on a header bar' }
],
defaultValue: 'inline',
orientation: 'vertical'
});
});
const layout = form.computedValue(() => showerSection.radioButton('layout')?.value() || 'inline');
const hasPanel = form.computedValue(() => isShower() && (layout() === 'inline' || layout() === 'corner' || layout() === 'neo'));
const isSlider = form.computedValue(() => isShower() && layout() === 'sliding');
showerSection.addRow(row => {
row.addSlider('doorWidth', {
label: 'Door width',
unit: 'in',
min: 22,
max: 36,
step: 0.5,
defaultValue: 28,
tooltip: 'Most frameless doors are 24 to 30 in',
isVisible: () => !isSlider()
}, '1fr');
row.addSlider('opening', {
label: 'Opening width',
unit: 'in',
min: 44,
max: 72,
step: 0.5,
defaultValue: 60,
tooltip: 'Wall to wall; a tub is usually 60 in',
isVisible: () => isSlider()
}, '1fr');
row.addSlider('showerHeight', {
label: 'Glass height',
unit: 'in',
min: 60,
max: 90,
step: 1,
defaultValue: 72,
tooltip: '72 in is standard, 78 in to clear a tall showerhead'
}, '1fr');
});
showerSection.addRow(row => {
row.addSlider('panelWidth', {
label: () => layout() === 'corner' ? 'Return panel (shower depth)' : layout() === 'neo' ? 'Side panels (each)' : 'Inline panel width',
unit: 'in',
min: 12,
max: 48,
step: 0.5,
defaultValue: 30,
isVisible: () => hasPanel()
});
});
showerSection.addRow(row => {
row.addRadioButton('showerThickness', {
label: 'Glass thickness',
options: [
{ id: '0.375', name: '3/8 in (included)' },
{ id: '0.5', name: '1/2 in (+' + shower.thickness12Pct + '%)' }
],
defaultValue: '0.375',
orientation: 'vertical'
}, '1fr');
row.addRadioButton('showerGlass', {
label: 'Glass',
options: [
{ id: 'clear', name: 'Clear (included)' },
{ id: 'lowiron', name: 'Low-iron (+' + surcharges.lowIron + '%)' }
],
defaultValue: 'clear',
orientation: 'vertical'
}, '1fr');
row.addRadioButton('finish', {
label: 'Hardware finish',
options: [
{ id: 'chrome', name: 'Polished chrome (included)' },
{ id: 'nickel', name: 'Brushed nickel (+' + shower.nickelPct + '%)' },
{ id: 'matteblack', name: 'Matte black (+' + shower.blackPct + '%)' },
{ id: 'gold', name: 'Brushed gold (+' + shower.goldPct + '%)' }
],
defaultValue: 'chrome',
orientation: 'vertical',
tooltip: 'Hinges, pull and clamps; match your faucet'
}, '1fr');
});
// Reactive values
const paneWidth = form.computedValue(() => paneSection.slider('width')?.value() ?? 36);
const paneHeight = form.computedValue(() => paneSection.slider('height')?.value() ?? 30);
const shape = form.computedValue(() => isShower() ? 'rectangle' : paneSection.radioButton('shape')?.value() || 'rectangle');
const thickness = form.computedValue(() => isShower()
? showerSection.radioButton('showerThickness')?.value() || '0.375'
: paneSection.dropdown('thickness')?.value() || '0.25');
const edge = form.computedValue(() => paneSection.radioButton('edge')?.value() || 'polished');
const tint = form.computedValue(() => paneSection.radioButton('tint')?.value() || 'clear');
const paint = form.computedValue(() => paneSection.radioButton('paint')?.value() || 'charcoal');
const canCutout = form.computedValue(() => isPane() && (shape() === 'rectangle' || shape() === 'rounded'));
const holeCount = form.computedValue(() => isPane() ? paneSection.integer('holes')?.value() ?? 0 : 0);
const cutoutCount = form.computedValue(() => canCutout() ? paneSection.integer('cutouts')?.value() ?? 0 : 0);
const withLed = form.computedValue(() => isMirror() && paneSection.checkbox('led')?.value() === true);
const withDefog = form.computedValue(() => isMirror() && paneSection.checkbox('defog')?.value() === true);
const tempered = form.computedValue(() => (kind() === 'glass' || kind() === 'painted') && paneSection.checkbox('tempered')?.value() === true);
const pieces = form.computedValue(() => isShower() ? 1 : Math.max(1, paneSection.integer('pieces')?.value() ?? 1));
const doorWidth = form.computedValue(() => showerSection.slider('doorWidth')?.value() ?? 28);
const opening = form.computedValue(() => showerSection.slider('opening')?.value() ?? 60);
const panelWidth = form.computedValue(() => showerSection.slider('panelWidth')?.value() ?? 30);
const showerHeight = form.computedValue(() => showerSection.slider('showerHeight')?.value() ?? 72);
const showerGlass = form.computedValue(() => showerSection.radioButton('showerGlass')?.value() || 'clear');
const finish = form.computedValue(() => showerSection.radioButton('finish')?.value() || 'chrome');
// Step 3: Installation and delivery
const servicePage = pages.addPage('service');
servicePage.addRow(row => {
row.addTextPanel('serviceTitle', {
computedValue: () => isShower() ? 'Step 3 of 4: Installation' : 'Step 3 of 4: Delivery',
customStyles: stepStyles
});
});
const serviceSection = servicePage.addSubform('service', {
title: () => isShower() ? 'Old enclosure and coating' : 'Install, deliver or pick up',
isCollapsible: false
});
serviceSection.addRow(row => {
row.addRadioButton('service', {
label: 'How do you want it?',
options: [
{ id: 'install', name: 'Delivered and installed - clips, standoffs or mirror mastic, level and clean (' + money(service.installPerPane) + ' per pane)' },
{ id: 'delivery', name: 'Delivered only - on a glass rack, to your door (' + money(service.delivery) + ', free from ' + money(service.freeDeliveryFrom) + ')' },
{ id: 'pickup', name: 'Pickup at our shop - packed with corner guards, ready when we call (no charge)' }
],
defaultValue: 'install',
orientation: 'vertical',
isVisible: () => isPane()
});
});
serviceSection.addRow(row => {
row.addTextPanel('crewInfo', {
computedValue: () => 'Delivered and installed by our crew. Frameless glass is heavy and set to fractions of an inch, so we deliver and install every shower ourselves for '
+ money(shower.installation) + '. Leave the silicone 24 hours before the first shower.',
customStyles: infoStyles,
isVisible: () => isShower()
});
});
serviceSection.addRow(row => {
row.addCheckbox('removal', {
label: 'Remove my old enclosure (' + money(shower.removal) + '): framed door or tub slider out, holes patched, hauled away',
defaultValue: false,
isVisible: () => isShower()
}, '1fr');
row.addCheckbox('coating', {
label: 'Protective glass coating (' + money(shower.coating) + '): keeps water spots and hard-water stains off the glass',
defaultValue: false,
isVisible: () => isShower()
}, '1fr');
});
// Pricing
const serviceChoice = form.computedValue(() => isShower() ? 'install' : serviceSection.radioButton('service')?.value() || 'install');
// The finished pane in square feet: a circle and an oval take less than the rectangle around them
const paneArea = form.computedValue(() => {
const w = paneWidth() / 12;
const h = paneHeight() / 12;
if (shape() === 'circle') {
const r = Math.min(w, h) / 2;
return Math.PI * r * r;
}
if (shape() === 'oval') return Math.PI * (w / 2) * (h / 2);
return w * h;
});
// The perimeter in feet, which edgework and the LED strip are charged by
const perimeter = form.computedValue(() => {
const w = paneWidth() / 12;
const h = paneHeight() / 12;
if (shape() === 'circle') return Math.PI * Math.min(w, h);
if (shape() === 'oval') {
// Ramanujan's approximation: an ellipse has no elementary formula
const a = w / 2;
const b = h / 2;
return Math.PI * (3 * (a + b) - Math.sqrt((3 * a + b) * (a + 3 * b)));
}
if (shape() === 'rounded') {
const r = Math.min(1.5 / 12, w / 2, h / 2);
return 2 * (w + h) - 8 * r + 2 * Math.PI * r;
}
return 2 * (w + h);
});
const billableArea = form.computedValue(() => Math.max(paneArea(), paneRules.minimumSqft));
const paneRate = form.computedValue(() => glassRates[kind()] ?? glassRates['mirror'] ?? 0);
// The pane: area with the minimum, rate, thickness, cutting, tint and tempering
const paneGlass = form.computedValue(() => {
if (isShower()) return 0;
const byThickness = thickness() === '0.5' ? 1 + surcharges.thickness12 / 100
: thickness() === '0.375' ? 1 + surcharges.thickness38 / 100
: 1;
const byShape = shape() === 'rectangle' ? 1 : 1 + surcharges.curvedCut / 100;
const byTint = kind() !== 'glass' ? 1
: tint() === 'lowiron' ? 1 + surcharges.lowIron / 100
: tint() === 'frosted' ? 1 + surcharges.frosted / 100
: tint() === 'bronze' ? 1 + surcharges.bronze / 100
: 1;
const byTempering = tempered() ? 1 + surcharges.tempered / 100 : 1;
return billableArea() * paneRate() * byThickness * byShape * byTint * byTempering;
});
const edgeCost = form.computedValue(() => {
if (isShower()) return 0;
if (edge() === 'beveled') return perimeter() * perFoot.bevelEdge;
if (edge() === 'polished') return perimeter() * perFoot.polishedEdge;
return 0;
});
const drilling = form.computedValue(() => holeCount() * perPiece.hole + cutoutCount() * perPiece.cutout);
const ledCost = form.computedValue(() => withLed() ? perimeter() * perFoot.led : 0);
const defogCost = form.computedValue(() => withDefog() ? perPiece.defogPad : 0);
// Everything charged per pane, times the pieces ordered
const perPane = form.computedValue(() => paneGlass() + edgeCost() + drilling() + ledCost() + defogCost());
const panesTotal = form.computedValue(() => isShower() ? 0 : perPane() * pieces());
const paneInstall = form.computedValue(() => isPane() && serviceChoice() === 'install' ? pieces() * service.installPerPane : 0);
// Shower glass in square feet, pane by pane as the layout stands it up
const fixedPanels = form.computedValue(() => {
if (!isShower()) return 0;
if (layout() === 'neo') return 2;
if (layout() === 'inline' || layout() === 'corner') return 1;
return 0;
});
const showerArea = form.computedValue(() => {
if (!isShower()) return 0;
const h = showerHeight() / 12;
if (isSlider()) return 2 * ((opening() / 2 + 1) / 12) * h;
return (doorWidth() / 12 + fixedPanels() * panelWidth() / 12) * h;
});
const showerGlassCost = form.computedValue(() => {
const byThickness = thickness() === '0.5' ? 1 + shower.thickness12Pct / 100 : 1;
const byLowIron = showerGlass() === 'lowiron' ? 1 + surcharges.lowIron / 100 : 1;
return showerArea() * shower.sqft * byThickness * byLowIron;
});
const hardware = form.computedValue(() => {
if (!isShower()) return 0;
const set = isSlider() ? shower.sliderHardware : shower.doorHardware + fixedPanels() * shower.panelClamps;
const byFinish = finish() === 'nickel' ? 1 + shower.nickelPct / 100
: finish() === 'matteblack' ? 1 + shower.blackPct / 100
: finish() === 'gold' ? 1 + shower.goldPct / 100
: 1;
return set * byFinish;
});
const showerInstall = form.computedValue(() => isShower() ? shower.installation : 0);
const removal = form.computedValue(() => isShower() && serviceSection.checkbox('removal')?.value() ? shower.removal : 0);
const coating = form.computedValue(() => isShower() && serviceSection.checkbox('coating')?.value() ? shower.coating : 0);
const showerTotal = form.computedValue(() => showerGlassCost() + hardware() + showerInstall() + removal() + coating());
const beforeDelivery = form.computedValue(() => isShower() ? showerTotal() : panesTotal() + paneInstall());
const delivery = form.computedValue(() => {
if (isShower() || serviceChoice() === 'pickup') return 0;
return beforeDelivery() >= service.freeDeliveryFrom ? 0 : service.delivery;
});
const quantityPercent = form.computedValue(() => isPane() && pieces() >= quantityDiscount.fromPieces ? quantityDiscount.percent : 0);
const subtotal = form.computedValue(() => beforeDelivery() + delivery());
const quantityAmount = form.computedValue(() => subtotal() * quantityPercent() / 100);
const beforePromo = form.computedValue(() => subtotal() - quantityAmount());
const promoAmount = form.computedValue(() => beforePromo() * promotion.percent / 100);
const afterPromo = form.computedValue(() => Math.round(beforePromo() - promoAmount()));
// The minimum holds last: a promotion may never take an order below what the bench costs
const total = form.computedValue(() => Math.max(afterPromo(), paneRules.minimumOrder));
const minimumApplied = form.computedValue(() => afterPromo() < paneRules.minimumOrder);
const minimumAmount = form.computedValue(() => minimumApplied() ? total() - afterPromo() : 0);
const paneSize = (): string => shape() === 'circle'
? inches(Math.min(paneWidth(), paneHeight())) + ' diameter'
: paneWidth() + ' x ' + paneHeight() + ' in';
const describeShower = (): string => {
const size = isSlider()
? inches(opening()) + ' opening'
: 'door ' + inches(doorWidth()) + (hasPanel() ? (layout() === 'neo' ? ', panels ' : ', panel ') + inches(panelWidth()) : '');
return nameOf(LAYOUTS, layout()) + ', ' + size + ', ' + inches(showerHeight()) + ' high';
};
const describeGlass = (): string => {
if (isShower()) {
return nameOf(THICKNESSES, thickness()) + ' ' + (showerGlass() === 'lowiron' ? 'low-iron' : 'clear') + ' tempered, ' + nameOf(FINISHES, finish()) + ' hardware';
}
const parts: string[] = [nameOf(THICKNESSES, thickness()), nameOf(SHAPES, shape()), nameOf(EDGES, edge())];
if (kind() === 'glass') parts.push(nameOf(TINTS, tint()));
if (kind() === 'painted') parts.push(nameOf(PAINTS, paint()) + ' paint');
if (tempered()) parts.push('tempered');
return parts.join(', ');
};
const extras = (): string[] => {
const list: string[] = [];
if (holeCount() > 0) list.push(holeCount() + (holeCount() === 1 ? ' hole' : ' holes'));
if (cutoutCount() > 0) list.push(cutoutCount() + (cutoutCount() === 1 ? ' outlet cutout' : ' outlet cutouts'));
if (withLed()) list.push('LED backlight');
if (withDefog()) list.push('anti-fog pad');
return list;
};
// Step 4: Quote and contact
const quotePage = pages.addPage('quote');
quotePage.addRow(row => {
row.addTextPanel('quoteTitle', {
computedValue: () => 'Step 4 of 4: Your quote',
customStyles: stepStyles
});
});
quotePage.addRow(row => {
row.addTextPanel('promoBanner', {
computedValue: () => promotion.name + ': ' + promotion.percent + '% off is already in the price below, ' + money(promoAmount()) + ' less.',
customStyles: successStyles,
isVisible: () => promotion.percent > 0
});
});
const summarySection = quotePage.addSubform('summary', { title: 'Your Estimate', isCollapsible: false });
summarySection.addRow(row => {
row.addPriceDisplay('total', {
label: () => isShower() ? 'Your shower, installed' : 'Your order',
computedValue: () => total(),
currency: '$',
decimals: 0,
variant: 'large',
suffix: () => (isShower() ? 'installed' : nameOf(SERVICES, serviceChoice())) + ', before sales tax'
});
});
summarySection.addRow(row => {
row.addTextPanel('totalNote', {
computedValue: () => {
if (quantityPercent() > 0) return quantityPercent() + '% off for ' + pieces() + ' pieces is included.';
if (minimumApplied()) return 'Small orders are billed at our minimum of ' + money(paneRules.minimumOrder) + '.';
return 'Estimate before sales tax. Glass cut to size cannot be returned.';
},
customStyles: { 'font-size': '0.85rem', 'color': '#64748b', 'font-style': 'italic' }
});
});
const breakdownSection = quotePage.addSubform('breakdown', { title: 'What makes up the price', isCollapsible: false });
breakdownSection.addRow(row => {
row.addTextPanel('spec', {
computedValue: () => isShower()
? 'Shower: ' + describeShower() + '; ' + showerArea().toFixed(1) + ' sq ft of ' + describeGlass()
: nameOf(KINDS, kind()) + ' ' + paneSize() + ', ' + pieces() + (pieces() === 1 ? ' pc' : ' pcs') + '; '
+ (billableArea() > paneArea() ? 'billed at ' + billableArea().toFixed(1) + ' sq ft (minimum)' : paneArea().toFixed(1) + ' sq ft')
+ ', perimeter ' + perimeter().toFixed(1) + ' ft; ' + describeGlass()
+ (extras().length > 0 ? '; ' + extras().join(', ') : ''),
customStyles: hintStyles
});
});
// Pane breakdown
breakdownSection.addRow(row => {
row.addPriceDisplay('glassCost', {
label: () => 'Glass (' + pieces() + ' x ' + money(paneGlass()) + ')',
computedValue: () => paneGlass() * pieces(),
currency: '$',
decimals: 0,
isVisible: () => isPane()
}, '1fr');
row.addPriceDisplay('edgeworkCost', {
label: () => nameOf(EDGES, edge()) + ' (' + perimeter().toFixed(1) + ' ft per pane)',
computedValue: () => edgeCost() * pieces(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => isPane() && edgeCost() > 0
}, '1fr');
});
breakdownSection.addRow(row => {
row.addPriceDisplay('drillingCost', {
label: 'Holes and cutouts',
computedValue: () => drilling() * pieces(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => isPane() && drilling() > 0
}, '1fr');
row.addPriceDisplay('ledCost', {
label: () => 'LED backlight (' + perimeter().toFixed(1) + ' ft of strip per mirror)',
computedValue: () => ledCost() * pieces(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => ledCost() > 0
}, '1fr');
row.addPriceDisplay('defogCost', {
label: 'Anti-fog pad',
computedValue: () => defogCost() * pieces(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => defogCost() > 0
}, '1fr');
});
breakdownSection.addRow(row => {
row.addPriceDisplay('paneInstall', {
label: () => 'Installation (' + pieces() + ' x ' + money(service.installPerPane) + ')',
computedValue: () => paneInstall(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => paneInstall() > 0
}, '1fr');
row.addPriceDisplay('deliveryCost', {
label: () => delivery() > 0 ? 'Delivery' : serviceChoice() === 'pickup' ? 'Pickup at our shop' : 'Delivery (free from ' + money(service.freeDeliveryFrom) + ')',
computedValue: () => delivery(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => isPane()
}, '1fr');
});
// Shower breakdown
breakdownSection.addRow(row => {
row.addPriceDisplay('showerGlassCost', {
label: () => 'Shower glass (' + showerArea().toFixed(1) + ' sq ft)',
computedValue: () => showerGlassCost(),
currency: '$',
decimals: 0,
isVisible: () => isShower()
}, '1fr');
row.addPriceDisplay('hardwareCost', {
label: () => 'Hardware, ' + nameOf(FINISHES, finish()) + (isSlider() ? ' (header bar, rollers and pulls)' : ' (hinges, ladder pull' + (fixedPanels() > 0 ? ' and clamps)' : ')')),
computedValue: () => hardware(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => isShower()
}, '1fr');
});
breakdownSection.addRow(row => {
row.addPriceDisplay('showerInstall', {
label: 'Installation',
computedValue: () => showerInstall(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => isShower()
}, '1fr');
row.addPriceDisplay('removalCost', {
label: 'Removal of the old enclosure',
computedValue: () => removal(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => removal() > 0
}, '1fr');
row.addPriceDisplay('coatingCost', {
label: 'Protective glass coating',
computedValue: () => coating(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => coating() > 0
}, '1fr');
});
// Discounts and minimum
breakdownSection.addRow(row => {
row.addPriceDisplay('quantityDiscount', {
label: () => 'Discount for ' + pieces() + ' pieces (' + quantityPercent() + '%)',
computedValue: () => -quantityAmount(),
currency: '$',
decimals: 0,
variant: 'success',
isVisible: () => quantityAmount() > 0
}, '1fr');
row.addPriceDisplay('promoDiscount', {
label: () => promotion.name + ' (' + promotion.percent + '%)',
computedValue: () => -promoAmount(),
currency: '$',
decimals: 0,
variant: 'success',
isVisible: () => promoAmount() > 0
}, '1fr');
row.addPriceDisplay('minimumOrder', {
label: 'Minimum order',
computedValue: () => minimumAmount(),
currency: '$',
decimals: 0,
prefix: '+',
isVisible: () => minimumApplied()
}, '1fr');
});
breakdownSection.addRow(row => {
row.addTextPanel('timingInfo', {
computedValue: () => isShower()
? 'What happens next: we call to book your free on-site measure within ' + timing.measureDays + ' business days. Your shower is installed about '
+ timing.showerDays + ' business days after the measure.'
: 'What happens next: we cut and finish your glass within ' + timing.leadDays + ' business days of confirming the size.',
customStyles: infoStyles
});
});
// Contact
const contactSection = quotePage.addSubform('contact', { title: 'Contact details', isCollapsible: false });
contactSection.addRow(row => {
row.addTextPanel('contactNote', {
computedValue: () => 'We send the PDF estimate and confirm the size before we cut.',
customStyles: hintStyles
});
});
contactSection.addRow(row => {
row.addTextbox('name', {
label: 'Name',
placeholder: 'Jane Smith',
isRequired: true
}, '1fr');
row.addTextbox('phone', {
label: 'Phone',
placeholder: '(555) 123-4567',
isRequired: true
}, '1fr');
});
contactSection.addRow(row => {
row.addEmail('email', {
label: 'Email',
placeholder: 'jane@example.com',
tooltip: 'For the PDF estimate',
isRequired: true
}, '1fr');
row.addTextbox('cityZip', {
label: 'City and ZIP code',
placeholder: 'Scottsdale, 85260',
tooltip: 'Helps us book the measure or delivery'
}, '1fr');
});
contactSection.addRow(row => {
row.addTextarea('notes', {
label: 'Anything else?',
placeholder: 'E.g. a sketch of an odd shape, a paint color to match, a tile ledge on the curb, gate code',
rows: 3,
maxLength: 1500
});
});
form.configureSubmitButton({
label: 'Request my quote'
});
form.configureCompletionScreen({
type: 'text',
title: 'Thank you!',
message: () => isShower()
? 'Your request is with us. We will call you to book the free on-site measure within ' + timing.measureDays + ' business days.'
: 'We sent the estimate to your email. We will call to confirm the size before we cut.'
});
form.configurePdf('estimate', pdf => {
pdf.configure({
filename: isShower() ? 'shower-estimate' : 'glass-estimate',
pageSize: 'Letter',
allowUserDownload: true,
downloadButtonLabel: 'Download the PDF estimate',
header: {
title: isShower() ? 'Frameless shower estimate' : 'Glass and mirror estimate',
subtitle: nameOf(KINDS, kind()) + ' - ' + (isShower() ? describeShower() : paneSize() + ', ' + pieces() + (pieces() === 1 ? ' pc' : ' pcs'))
},
footer: {
text: 'Prices before sales tax. Glass cut to size cannot be returned.',
showPageNumbers: true
}
});
pdf.addSection(isShower() ? 'Shower' : 'Pane', section => {
const rows: string[][] = isShower()
? [
['Layout', nameOf(LAYOUTS, layout())],
['Size', describeShower().split(', ').slice(1).join(', ')],
['Glass area', showerArea().toFixed(1) + ' sq ft'],
['Glass', nameOf(THICKNESSES, thickness()) + ' ' + (showerGlass() === 'lowiron' ? 'low-iron' : 'clear') + ' tempered'],
['Hardware', nameOf(FINISHES, finish())],
['Remove old enclosure', removal() > 0 ? 'yes' : 'no'],
['Protective coating', coating() > 0 ? 'yes' : 'no']
]
: [
['Product', nameOf(KINDS, kind())],
['Size', paneSize()],
['Shape', nameOf(SHAPES, shape())],
['Area', paneArea().toFixed(1) + ' sq ft'],
['Perimeter', perimeter().toFixed(1) + ' ft'],
['Glass', describeGlass()],
['Holes and extras', extras().join(', ') || 'none'],
['Pieces', String(pieces())],
['Delivery', nameOf(SERVICES, serviceChoice())]
];
section.addTable(['Item', 'Choice'], rows);
});
pdf.addSection('Price', section => {
const rows: string[][] = isShower()
? [
['Shower glass', money(showerGlassCost())],
['Hardware', money(hardware())],
['Installation', money(showerInstall())]
]
: [
['Glass', money(paneGlass() * pieces())],
['Edgework, holes and cutouts', money((edgeCost() + drilling()) * pieces())]
];
if (isShower()) {
if (removal() > 0) rows.push(['Removal of the old enclosure', money(removal())]);
if (coating() > 0) rows.push(['Protective glass coating', money(coating())]);
} else {
if (ledCost() + defogCost() > 0) rows.push(['LED and anti-fog', money((ledCost() + defogCost()) * pieces())]);
rows.push(['Installation', paneInstall() > 0 ? money(paneInstall()) : 'not included']);
rows.push(['Delivery', delivery() > 0 ? money(delivery()) : serviceChoice() === 'pickup' ? 'pickup' : 'free']);
}
if (quantityAmount() > 0) rows.push(['Discount for ' + pieces() + ' pieces (-' + quantityPercent() + '%)', '-' + money(quantityAmount())]);
if (promoAmount() > 0) rows.push([promotion.name + ' (-' + promotion.percent + '%)', '-' + money(promoAmount())]);
if (minimumApplied()) rows.push(['Minimum order', money(minimumAmount())]);
rows.push(['Total before sales tax', money(total())]);
section.addTable(['Item', 'Amount'], rows);
});
pdf.addSection('Contact', section => {
section.addRow(row => {
row.addField('Name', contactSection.textbox('name')?.value() || '');
row.addField('Phone', contactSection.textbox('phone')?.value() || '');
});
section.addRow(row => {
row.addField('Email', contactSection.email('email')?.value() || '');
row.addField('City and ZIP', contactSection.textbox('cityZip')?.value() || '-');
});
});
pdf.addSection('What happens next', section => {
if (isShower()) {
section.addText('We call you to book the free on-site measure within ' + timing.measureDays + ' business days.');
section.addText('The glass is tempered to the measured sizes and your shower is installed about ' + timing.showerDays + ' business days after the measure.');
section.addText('Leave the silicone 24 hours before the first shower.');
} else {
section.addText('We call you to confirm the size, or measure on site within ' + timing.measureDays + ' business days.');
section.addText('We cut and finish your glass within ' + timing.leadDays + ' business days of the confirmed size.');
}
});
const notes = contactSection.textarea('notes')?.value();
if (notes) {
pdf.addSection('Notes', section => section.addText(notes));
}
pdf.addSection('Terms', section => {
section.addText('This is an estimate, not a binding offer. Prices are before sales tax. Glass is cut only after the size is confirmed, and glass cut to size cannot be returned or recut.');
});
});
}
Frequently Asked Questions
Can I use my own square-foot rates and surcharges?
Yes. Mirror, back-painted and clear glass rates, the thickness, curved-cut, tint and tempering surcharges, edgework and LED per linear foot, holes and cutouts per piece, shower glass, hardware sets, finish surcharges, installation, delivery and discounts are all constants at the top of the calculator code.
How is the area of a circle or an oval priced?
The calculator computes the real area and perimeter of each shape: a circle from its diameter, an oval from its two axes (the perimeter uses Ramanujan's approximation), and rounded corners with a 1.5 in radius. Any shape other than a rectangle carries the curved-cutting surcharge, and every pane is billed at no less than the minimum square footage.
Can I offer different shower layouts or hardware finishes?
Yes. The five layouts determine how many fixed panels there are and whether the hardware is a door set, a door set plus clamps or a bypass slider set. Add or remove layouts, change the finish list or the surcharge for brushed nickel, matte black and brushed gold to match your supplier.
What if the customer measures wrong?
The calculator warns that glass cut to size cannot be returned and promises a free on-site measure within a number of business days you set. For showers it states clearly that the glass is cut only after your measure, so the price is an estimate and the sizes are confirmed by your crew.
What does the customer receive after submitting?
A Letter-size PDF estimate with the pane or shower specification, area and perimeter, the itemized price before sales tax, what happens next and your terms. You receive the lead with the customer's name, phone, email, city and ZIP code and their notes about odd shapes, paint colors or site access.