Plan your next build with a Project Kit
A project kit turns a building job into a step-by-step material checklist. Choose the kit that matches your project - whether that's replastering a room, laying a new patio or building a garden wall - then enter your dimensions once. We'll create a personalised shopping list of every specialist calculator you need, pre-loaded with your measurements, so you can work through each material in order without re-entering figures.
Every calculator result can be saved to your project for reference. As you complete each step the checklist updates, so you always know where you are in the job. Finished projects can be exported or shared with suppliers. Project Kits are free to use - BuildersCalc Pro members can save unlimited projects and access cloud sync across devices.
Don't see your project type? Suggest a kit and submit it for consideration.
All Project Kits
12 project kits
Replaster a Room
Full re-plaster of a single room including scratch coat, finish plaster and optional skimming. Covers render, plasterboard patching and paint.
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House Extension (Single Storey)
Everything from strip foundations through to internal plasterwork. Covers concrete, brickwork, blocks, roof tiles, insulation and flooring.
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Bathroom Refit
Wall and floor tiles, tile backer board, waterproof membrane, adhesive and grout, plus skirting and paint for the walls above the tiles.
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Loft Conversion
Insulation between and over rafters, plasterboard lining, stud walls, flooring, staircase and roof membrane. Velux openings included.
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New Patio / Deck
Concrete sub-base, paving slabs or decking boards, gravel edging and pointing mortar. Handles both paved and timber deck options.
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Garden Wall
Brick or block boundary and garden walls. Covers strip footing concrete, brickwork, mortar and coping stones in one project.
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New Build Plot (Groundworks)
Strip foundations, concrete, rebar, drainage, aggregate, DPM and oversite slab. Everything from topsoil strip to damp-proof membrane.
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Roof Replacement
Tiles or slates, roofing felt, battens, ridge and hip tiles, lead flashing and guttering. Covers pitched roofs from rafter calculation onwards.
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Kitchen Refit
Floor tiles or hard flooring, splashback tiles, wall paint, skirting, worktop and adhesive. All the material quantities for a full kitchen refresh.
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External Render & Insulation (EWI)
External wall insulation boards, render board substrate, scratch and finish render, paint and soffit board. For full-house external upgrades.
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Garage Conversion
Concrete screed, insulation, stud wall lining, plasterboard, flooring, skirting, paint and a new door frame. Turn any garage into a usable room.
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Orangery / Sunroom
Brick piers, concrete base, screed, floor tiles, render, guttering and soffit. Covers the structural and finishing materials for a brick orangery.
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