Project category
Walls & Insulation calculators
Drywall, plasterboard, stud and insulation calculators.
- Plasterboard CalculatorEnter your room dimensions in metres to get the number of plasterboard sheets to buy, with standard opening deductions, a wastage allowance and an optional VAT-aware cost estimate.
- Plasterboard Ceiling Calculator UK — Area & Layout ChecksMeasure up to three non-overlapping ceiling rectangles, compare area and both board orientations, then choose an explicit order basis without hidden offcut assumptions.
- Stud Wall Cost Calculator UK — Timber, Plasterboard & InsulationChoose framing only, framing plus plasterboard, or the full insulated partition; then enter one straight wall, specified centres, openings and exact sale units for a scoped UK takeoff.
How these walls & insulation calculators work
Each calculator starts from site measurements in metres and millimetres, converts them with a tested formula, shows the exact quantity and your waste allowance as separate lines, then rounds up to the package or order unit you actually buy. Prices are optional and always entered by you, so the estimate reflects your supplier rather than a national average.
Walls & Insulation measuring guides
Step-by-step guides with worked examples and reference tables for United Kingdom.
- Plasterboard Sizes and Coverage (UK)UK plasterboard sizes and coverage: the 2400 × 1200 mm sheet at 2.88 m², the 1800 × 900 mm sheet, 9.5 and 12.5 mm thicknesses, edge types, and sheet counts.
- How to Measure a Ceiling for PlasterboardMeasure a UK ceiling in sections, compare area count with a board-layout count, and round 2400 × 1200 mm or 1800 × 900 mm plasterboard up to whole sheets.
- How to Measure a Stud Wall for Materials (UK)Record wall runs, height, stud centres, openings, plasterboard faces, insulation coverage and sale units before using a UK stud-wall calculator.