Free site calculators that show their working
33 calculators for groundworks, concrete, masonry, carpentry, roofing and internal work, 3 for the farm, the bar and deliveries, and 7 compliance tools. Every line prints the sum that produced it, so you can check it against your own take-off. No sign-in, nothing saved, nothing tracked.
The ones only a builder asks
Footings, floor build-ups, lead, cavity walls, roof timbers, stud walls and muck away - each works out what to order and shows the sum.
- Strip & trench-fill foundationHow much concrete goes in a strip foundation?m³ · t
- Ground floor build-upWhat goes under a ground floor, and how much of it?full stack
- Lead flashingHow much lead flashing do I need?code · weight
- Cavity wallHow many bricks and blocks for a cavity wall?two leaves
- Roof timbers & battensHow many rafters and battens do I need?rafters · battens
- Stud partitionHow much timber and plasterboard for a stud wall?studs · boards
- Excavation & muck awayHow much muck will I dig out, and how many loads is that?m³ · t · loads
Compliance tools
7 tools
- HAV exposure calculatorAm I over the HAV exposure action value?vibration · HSE points
- 6×6 risk matrixHow do I score a risk on a 6×6 matrix?likelihood × severity
- Noise exposure calculatorAm I over the noise exposure action values?dB(A) · daily exposure
- CDM notification checkerDo I need to notify HSE about my construction project?CDM 2015 · regulation 6
- Manual handling (MAC) scorerHow risky is this lift or carry? (the MAC tool)HSE MAC · lifting, carrying, teams
- COSHH assessment checkerHave I covered what a COSHH assessment needs?COSHH 2002 · regulations 6 and 7
- Accreditation checkerWhich accreditations does my trade need?what do I need?
Groundworks
11 tools
- Excavation & muck awayHow much muck will I dig out, and how many loads is that?m³ · t · loads
- Sub base / Type 1How much MOT Type 1 do I need?t · bags
- Strip & trench-fill foundationHow much concrete goes in a strip foundation?m³ · t
- Drainage run & pipe beddingHow much pipe and pea shingle for a drainage run?m³ · lengths
- Patio & pavingHow many slabs do I need for a patio?slabs · bed · cost
- Block paving & drivewayHow many paving blocks do I need for a driveway?blocks · sand · sub base
- Fence panels & postsHow many fence panels and posts do I need?panels · posts · post-fix
- Gravel & topsoilHow much gravel or topsoil do I need?t · bags
- TurfHow many rolls of turf do I need?rolls · topsoil
- Shed baseWhat do I need for a shed base?concrete or slabs · sub base
- Pipe fall & gradientHow much fall does a pipe need over its run?mm · 1 in N · %
Roofing
4 tools
Concrete & screed
4 tools
Masonry
4 tools
Carpentry
5 tools
- Roof timbers & battensHow many rafters and battens do I need?rafters · battens
- Floor joists & deckingHow many floor joists do I need?joists · sheets
- Stud partitionHow much timber and plasterboard for a stud wall?studs · boards
- Shed & garden buildingWhat timber do I need to build a shed?full cutting list
- DeckingHow many decking boards do I need?boards · joists
Internal
5 tools
- Plasterboard & skimHow many plasterboards, and how much plaster?boards · plaster
- Wall & floor tilingHow many tiles, and how much adhesive and grout?tiles · adhesive · grout
- Insulation boardsHow many insulation boards do I need?sheets · packs
- Loft insulation rollsHow many rolls of loft insulation do I need?rolls · depth · R-value
- Paint & coverageHow much paint do I need?litres · tins
Bar & cellar
1 tool
Delivery & haulage
1 tool
Nothing matches that. Try a material or a job — sand, rafters, screed.
Guidance only. The calculators work out quantities, not structural design; the compliance tools are a starting point, not an assessment, and Pascoe Business Systems makes no compliance claim. Current guidance and a competent person decide.