Trade toolkit · Materials
Work out floor, wall and ceiling areas in square metres, including L-shapes, triangles and circles, take away doors and windows, add waste and get the number of packs. Then work out concrete, screed or sand in cubic metres and tonnes.
Areas
Add each wall, floor or panel. Tick Take away for windows, doors and anything you are not covering.
| Name | Shape | Size 1 | Size 2 | Qty | Take away | m² | Remove |
|---|
Volumes
| Name | Shape | Length / ø | Width | Depth | Qty | m³ | Remove |
|---|
How to use it
Add a row for each slab, footing, post hole or ramp. Choose the material to get the weight as well, so you know how many bulk bags to order and whether the van can carry it.
Questions
Multiply length by width in metres. 4.2 m by 3.6 m is 15.12 m². For odd shapes, split the room into rectangles and triangles and add them up, which is what this calculator does.
Around 5% for straight-laid laminate or carpet tiles, 10% for most tiles and wood flooring, and 15% or more for herringbone or diagonal layouts.
Length × width × depth in metres. A 3 m by 2 m slab 100 mm deep is 0.6 m³. Concrete weighs about 2.4 tonnes per cubic metre.
More trade tools
Pricing
Sheets from a parts list, job pricing with markup and contingency, margin, VAT, CIS and retention.
Carpentry
Studs, plates, noggins, openings, timber lengths, plasterboard sheets and screws for a stud partition.
Everyday
Millimetres to feet, inches and fractions, square and cubic measures, weights, angles and pitches.
Pricing a full fit-out?
We supply made-to-measure cabinets, cut and edged panels and MDF doors to the trade across the East Midlands. Email info@dtjinteriors.co.uk, call 0115 784 8231 or WhatsApp 07956 032306.
DTJ Interiors Ltd
Unit 5 Atlas Mills, Birchwood Avenue
Long Eaton, NG10 3ND
Workshop and collection
Monday to Friday, 8am to 4:30pm
Delivery across the East Midlands for £99 + VAT, and further afield priced per job.
DTJ Interiors Limited · Company no. 15242186 · VAT GB460641310
Registered office: The Mills, Canal Street, Derby DE1 2RJ
Every DTJ cabinet comes with a 5-year guarantee. How it works · FAQs · Samples · Terms of sale
