Home & DIY

How much wallpaper do you need? Divide total wall area by about 5 square metres per roll and round up. Covers the drop method and pattern repeat.

How much mulch do you need? Multiply bed area by depth for cubic feet, divide by 27 for cubic yards. Worked example, depths, and a coverage rule.

How much flooring do you need? Find the room area, add 10% for waste, and divide by the coverage per box. Includes a worked example and waste guidance.

How to calculate square footage: multiply length by width in feet. A 12 by 10 room is 120 sq ft. Covers whole houses, L-shaped rooms, and conversions.

The volume calculation, the waste allowance people forget, and how to turn cubic metres into bags of cement, sand and aggregate.

Wall area divided by coverage, times two coats. The measuring method, and the surfaces that quietly drink a third more paint.