Interior & Finishes Calculators
Drywall, flooring, tile, carpet, wallpaper, baseboard, paint, and insulation — sheets, boxes, gallons, rolls, and R-value.
- Drywall CalculatorDrywall is sold by the sheet. Enter the area you're covering and the sheet size, and this gives the number of sheets plus rough screws and joint compound.
- Flooring CalculatorFlooring — laminate, vinyl plank, hardwood, tile — is sold by the box, and each product covers a different area. Enter your room size and the box's coverage for the number of boxes.
- Tile CalculatorEnter the area you're tiling and the tile size, and this gives the number of tiles — and boxes — to buy, with a waste allowance for cuts.
- Wallpaper CalculatorEnter the wall area and how much one roll actually covers, and this gives the number of rolls — with extra for matching the pattern across strips.
- Baseboard CalculatorEnter the room's perimeter and the openings to skip, and this gives the linear feet of baseboard — and the number of stock pieces — to buy.
- Carpet CalculatorCarpet is priced by the square yard and cut from a wide roll (broadloom), so it's ordered differently from boxed flooring. Enter your room area for the square yards — and the run of broadloom — to buy.
- Insulation CalculatorR-value measures resistance to heat flow, and for a single material it adds up evenly with thickness. Enter your target R-value and the material's R-per-inch for the thickness you need.
- Paint CalculatorEnter your wall area and how many coats you're applying, and this gives the gallons of paint to buy — using the coverage figure for your paint.