Do it yourself renovation materials calculators

Plan the build before you buy the lumber. Free calculators for DIY renovation and building projects: each one gives the full material list, draws the result to scale, and shows the formula and code rules behind it so you can check the math.

Project planners

Deck PlannerDecking boards, joists, hangers, screws, stain and cost for a rectangular deck.Stair Stringer CalculatorRisers, treads, stringer length and cut marks, with an IRC code check and diagram.Rafter Length CalculatorRafter length, overhang, ridge height and birdsmouth cut for gable and shed roofs.Wall Framing CalculatorStuds, plates, headers and sheathing for a framed wall, with a stud layout drawing.Paver Patio CalculatorPavers, gravel base, bedding sand and edging for a patio or walkway.Retaining Wall CalculatorBlocks, caps, buried course, base gravel and drainage stone for a block wall.Concrete Slab CalculatorCubic yards, premix bags, pier footings and rebar grid for a slab.Wallpaper CalculatorRolls needed with pattern repeat and half-drop match, US and European rolls.

Quick calculators

Paint CalculatorGallons of wall paint and primer for a room.Mulch CalculatorCubic yards or bags of mulch for a bed.Gravel CalculatorTons and cubic yards of gravel for driveways, paths and bases.Tile CalculatorTiles and boxes for a floor or wall.

What a renovation materials calculator does

Most do it yourself projects go wrong at the lumber yard: too few boards, too many bags, or a second trip mid-job. A renovation materials calculator turns your measurements into a shopping list. Enter the size of the deck, wall, patio or room, and you get how many boards, studs, blocks, bags, rolls or gallons to buy, with extra for cuts and waste.

Every calculator here works in feet and inches or in metres and millimetres. Switch with the button at the top of the page.