Project category

Walls & Insulation calculators

Drywall, plasterboard, stud and insulation calculators.

Drywall CalculatorEnter your room in metres or feet — Canadian drywall is still sold in 4 × 8 ft sheets, and this calculator converts either way, deducts openings and adds wastage.

How these walls & insulation calculators work

Each calculator starts from site measurements in feet or metres, 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.