🔨 For UK DIYers & tradespeople

Free tools for
DIY & building

Brickwork, timber, plasterboard, roofing, electrical, plumbing cost estimators and more — all free, all UK-focused, all instant.

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Free Tools

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UK Measurements

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Brick Calculator

How many bricks do you need? Calculate by wall area, bond type and brick size — with 10% wastage.

Timber & Joist Calculator

Calculate timber quantities for stud walls, floor joists, rafters and roof structures.

Plasterboard Calculator

How many sheets of plasterboard do you need for walls and ceilings? Calculate with 10% wastage.

Roofing Calculator

Calculate roof area, tiles, battens, felt and ridge tiles for a pitched roof by span and pitch.

Electrical Rewire Cost Estimator

Estimate the cost of a full or partial electrical rewire by property size and number of circuits.

Plumbing Cost Estimator

Estimate plumbing costs for bathroom fitting, boiler installation and central heating work.

Extension Cost Calculator

Estimate the build cost of a single or double-storey extension by floor area and finish quality.

Render Calculator

How many bags of render do you need? Calculate by wall area, render type and coat thickness.

Insulation Cost Calculator

Estimate insulation costs for walls, floors and roofs by area and insulation type.

Skip Hire Cost Calculator

Estimate skip hire costs and which skip size you need for your project by waste volume.

Scaffold Cost Estimator

Estimate scaffolding costs for a house by number of elevations, height and hire duration.

Loft Conversion Cost Calculator

Estimate the cost of a dormer or Velux loft conversion by property type and finish level.

Damp Proofing Cost Estimator

Estimate damp proofing costs by wall length, treatment type and number of storeys.

Window & Door Cost Estimator

Estimate supply and fit costs for uPVC, timber or aluminium windows and doors.

Bathroom Renovation Cost

Estimate full bathroom renovation costs by room size and finish quality.

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