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Free Construction & DIY Calculator Widgets

Concrete, brick, tile, flooring, roofing, stair, deck, fence, gravel, mulch, drywall and lumber widgets that turn a few measurements into material quantities, with waste allowances stated.

Who these are for

Contractors, builders' merchants, hardware stores and DIY blogs that want customers to work out quantities before they order.

Common uses

  • A concrete or gravel calculator on a building-supplies product page
  • A tile, flooring or drywall estimate in a renovation how-to
  • A stair or roof-pitch check on a carpenter's or roofer's site

How embedding works

Pick a widget, set the theme and size, copy one line of HTML and paste it into your page. It runs in its own frame, so it cannot clash with your site's styles, and it resizes itself if you use the loader.

  • Concrete Calculator

    Construction & DIY Calculator New

    Concrete volume for slabs, footings, round columns or steps, with pre-mix bags and site-mix cement.

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  • Brick Calculator

    Construction & DIY Calculator New

    Bricks or blocks for a wall from its size and openings, with US, UK, Indian and CMU unit presets.

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  • Tile Calculator

    Construction & DIY Calculator New

    Tiles and boxes for a floor or wall from its size, the tile size, grout joint and cut waste.

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  • Flooring Calculator

    Construction & DIY Calculator New

    Boxes of laminate, vinyl or wood flooring by box coverage, with a waste allowance for the laying pattern.

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  • Roofing Calculator

    Construction & DIY Calculator New

    Roof area, squares, shingle bundles and underlayment rolls from the footprint, overhang and pitch.

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  • Roof Pitch Calculator

    Construction & DIY Converter New

    Convert roof pitch between X/12, degrees, percent grade and pitch factor, with rafter length.

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  • Stair Calculator

    Construction & DIY Calculator New

    Risers, treads, total run, stringer length and angle for a straight stair, checked against IRC or UK limits.

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  • Deck Calculator

    Construction & DIY Calculator New

    Decking boards, joists and screws for a rectangular deck from its size, board width, gap and joist spacing.

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  • Fence Calculator

    Construction & DIY Calculator New

    Fence posts, rails, pickets and post-hole concrete bags for a run of fence with gates.

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  • Gravel Calculator

    Construction & DIY Calculator New

    Cubic yards or metres, tons or tonnes and bags of gravel, crushed stone or sand for an area and depth.

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  • Mulch Calculator

    Construction & DIY Calculator New

    Cubic yards or litres and bags of mulch, topsoil or compost for a bed, with extension depth advice.

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  • Drywall Calculator

    Construction & DIY Calculator New

    Drywall sheets, screws, joint compound and tape for a room's walls and ceiling.

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  • Board Foot Calculator

    Construction & DIY Calculator New

    Board feet, cubic metres and cost for up to three lumber line items.

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How to add a widget

Open a widget, choose the theme, width and style, check the live preview, then copy the code. Paste it into an HTML or "Custom code" block on your site - step-by-step instructions for each platform.

Preview