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Home, DIY and utilities
This section covers the measurements a renovation starts from: floor area, wall area, perimeter and room volume.
Those numbers turn into material estimates for flooring, tile, wallpaper and paint before you go shopping.
Calculators in this section
Complete alphabetical list · 22
- Air Conditioner BTU Calculatorair conditioner btu calculatorOpen →
- Appliance Energy Calculatorappliance energy calculatorOpen →
- Brick Calculatorbrick calculatorOpen →
- Concrete Block Calculatorconcrete block calculatorOpen →
- Concrete Calculatorconcrete calculatorOpen →
- Drywall Calculatordrywall calculatorOpen →
- Electricity Cost Calculatorelectricity cost calculatorOpen →
- Fence Calculatorfence calculatorOpen →
- Floor Screed Calculatorfloor screed calculatorOpen →
- Flooring Calculatorflooring calculatorOpen →
- Gravel Calculatorgravel calculatorOpen →
- Grout Calculatorgrout calculatorOpen →
- Home Renovation Cost Calculatorhome renovation cost calculatorOpen →
- Mulch and Soil Calculatormulch calculatorOpen →
- Paint Calculatorpaint calculatorOpen →
- Plaster Calculatorplaster calculatorOpen →
- Pool Volume Calculatorpool volume calculatorOpen →
- Roofing Calculatorroofing calculatorOpen →
- Square Footage Calculatorsquare footage calculatorOpen →
- Tile Calculatortile calculatorOpen →
- Utility Cost Calculatorutility cost calculatorOpen →
- Wallpaper Calculatorwallpaper calculatorOpen →
Where an estimate begins
- Floor area — for flooring, tile and screed.
- Wall area without openings — for wallpaper, paint and plaster.
- Perimeter — for skirting, trim and floor profiles.
- Volume — for ventilation and heating capacity.
Buying extra
Add a margin for cuts: 5–10% for straight layouts and up to 15% for diagonal patterns. Buy from one batch at once — the next production run can differ in shade.
Frequently asked questions
Should openings be subtracted?
Yes for paint and wallpaper; flooring is unaffected.
How do I measure an irregular room?
Split it into rectangles and add the areas together.
Why does ceiling height matter?
It drives both the wall area and the room volume.