Embed a Free Construction Calculator on Your Website

Give your readers a tool they'll actually use. Pick a calculator, copy one line of code, paste it into any blog post or page — done. Free forever, mobile-friendly, no signup.

1. Pick a calculator

Choose the tool that fits your article — concrete, paint, flooring, roofing and more.

2. Copy the code

One iframe snippet. Works in WordPress, Squarespace, Wix, Ghost and plain HTML.

3. Keep readers longer

Interactive tools increase time on page and give your content real utility.

Available widgets

Live preview on the left, embed code on the right.

Concrete Calculator Widget

Calculate the exact volume of ready-mix concrete you need for slabs, footings, driveways and pads in cubic yards, cubic meters and 60/80 lb bags.

<iframe src="https://buildmat.app/embed/concrete-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Paint Calculator Widget

Estimate how many gallons of paint you need for any room, including doors, windows and the number of coats.

<iframe src="https://buildmat.app/embed/paint-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Tile Calculator Widget

Calculate the number of tiles and boxes needed for any floor or backsplash project, with a smart waste allowance.

<iframe src="https://buildmat.app/embed/tile-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Flooring Calculator Widget

Estimate square footage and number of boxes for hardwood, laminate and luxury vinyl plank projects.

<iframe src="https://buildmat.app/embed/flooring-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Deck Calculator Widget

Estimate deck boards, joists and screws for pressure-treated or composite decking.

<iframe src="https://buildmat.app/embed/deck-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Roof Calculator Widget

Estimate roofing squares, bundles of shingles and rolls of underlayment for gable, hip and shed roofs.

<iframe src="https://buildmat.app/embed/roof-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Brick Calculator Widget

Estimate how many modular bricks (7.6 per sq ft including mortar joints) you need for any wall, veneer or column, plus mortar bags.

<iframe src="https://buildmat.app/embed/brick-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Concrete Block Calculator Widget

Estimate the number of standard 8×8×16 CMU concrete blocks and mortar bags for a garden wall, retaining wall or foundation.

<iframe src="https://buildmat.app/embed/block-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Retaining Wall Calculator Widget

Estimate segmental retaining-wall blocks, base gravel and drainage backfill for a landscape or grade-change wall.

<iframe src="https://buildmat.app/embed/retaining-wall-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Laminate Flooring Calculator Widget

Estimate boxes of laminate planks and rolls of underlayment for any room, with a smart 10% waste allowance.

<iframe src="https://buildmat.app/embed/laminate-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Hardwood Flooring Calculator Widget

Estimate square footage and cartons of solid or engineered hardwood, with waste sized to the install pattern.

<iframe src="https://buildmat.app/embed/hardwood-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Fence Calculator Widget

Estimate posts, panels, pickets and concrete for wood, vinyl or chain-link fencing.

<iframe src="https://buildmat.app/embed/fence-calculator" width="100%" height="560" style="border:0;max-width:480px;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.12)" loading="lazy" title="BuildMate Calculator"></iframe>

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Embedding FAQ

Is it really free?: Yes. Every BuildMate widget is free to embed on any website, commercial or personal. No account, no API key, no usage limits.
Does it work on WordPress / Wix / Squarespace?: Yes. Paste the iframe snippet into an HTML/Custom Code block. It works anywhere iframes are allowed.
Will it slow down my page?: No. The snippet uses lazy loading, so the widget only loads when a visitor scrolls to it.
Can I change the size?: Yes. Edit the width, height and max-width values in the style attribute to fit your layout. The widget is fully responsive inside the frame.

Questions or a widget request? Email hello@buildmat.app.