Material Calculators
The tools people search for most — UK standard sizes and waste allowances built in. Pick what you're ordering.
Concrete Calculator
Volume plus an estimate of 20kg ready-mix bags.
Brick & Block Calculator
60 bricks/m² or 10 blocks/m² for a single skin, plus wastage.
Mortar Calculator
Approx. 0.5 m³ of mortar per 1,000 bricks, with a rough bag count of mixed mortar.
Gravel / Aggregate Calculator
Volume, tonnage and bulk bags for gravel, stone or decorative aggregate.
Sub-base (MOT Type 1)
Tonnage of MOT Type 1 by area and depth. Default density 2.1 t/m³.
Plasterboard Calculator
Boards, screws and tape, with a visual sheet layout showing how the boards cut in and where the off-cuts fall. UK standard board 2400×1200mm.
Paint Calculator
Litres and tins (UK 2.5L/5L) for the area and number of coats.
Tile Calculator
Number of tiles, adhesive and grout for floors or walls.
Fencing Calculator
Panels, posts, gravel boards and postcrete for a run of fence.
Decking Calculator
Boards and joists for a deck. Default 150mm boards with a 5mm gap, joists at 400mm centres.
Turf & Topsoil Calculator
Turf rolls (≈1 m² each) and topsoil tonnage for a lawn area.
Stud Wall Calculator
Timber and plasterboard for a timber stud partition. Studs at chosen centres, one row of noggins, board both sides.
Floor Screed
Volume and approximate tonnage of sand:cement screed.
Tarmac / Asphalt
Tonnage by area and compacted depth. Default density 2.36 t/m³.
Skip / Muck-away
Bulked volume of arisings and an estimate of skip / grab loads.
Site Engineer Tools
Geometry, setting out, levels and programme for the people running the works.
Area Calculator
Pick a shape, get the area.
Volume Calculator
Boxes, trenches, cylinders and more.
Gradient & Fall
Run and fall to gradient ratio, percentage and angle. Handy for drainage and ramps.
Setting Out — Diagonal Check
Diagonal of a rectangle to prove a 90° corner (3:4:5 principle).
Reduced Levels (HPC)
RL = (Benchmark + Backsight) − Foresight.
Rebar Weight
Steel weight using d²/162, totalled by length and quantity.
Bulking / Compaction
In-situ volume to bulked or compacted volume.
Programme Days
Finish date from a start date plus working days (weekends excluded).
Drawing Take-off Tool
Upload a plan and measure lengths and areas directly in your browser. Calibrate the scale off any known dimension, then click around the drawing. Exports to Excel. Nothing leaves your device.
Drawing Take-off / Measure Tool
Upload a plan (image or PDF). Set the scale by clicking two points a known distance apart, then measure lengths and areas. Runs entirely on your device — nothing is uploaded to a server.
Template Shop
38 professional Excel templates covering every site role — the documents people fill in every single day. UK practice, instant download, works in Excel & Google Sheets. No subscription.
The Full Site Pack
- All 38 templates
- All six role sets included
- Free updates for life
Engineer Pack
- Pour record · Rebar check · ITP
- Cube register · Setting out
- Level book · Snagging
Supervisor Pack
- Work allocation · Daily report
- Plant inspection · Housekeeping
- PPE check · Lifting checklist
Manager Pack
- Diary · Progress · Labour · Plant
- Requisition · PO · GRN · Instruction
- Toolbox · Induction · Permits · RFI
PM & Agent Pack
- Risk register · Action log
- Meeting minutes · Look-ahead
- Monthly report · Budget vs actual
Commercial Pack
- Payment tracker · Procurement
- CVR · Variation register
Prefer to pick individual sheets? Browse by role below — £3.99 each.
Instant digital download (.xlsx). Works in Microsoft Excel and Google Sheets. No refunds on downloaded digital goods.
Unit Converters
Quick conversions for the site office and the trench.
Order from UK suppliers
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