Measure Twice: DIY Calculator

Three trips to the hardware store for one bathroom. Half a box of tile left over, one tile short. Measure Twice does the maths before you spend a penny. HOW IT WORKS Measure each room once — length, width, height, doors and windows. Pick a job: paint, tile, wallpaper, laminate, plaster, concrete or grout. The room's size is already filled in. See exactly what to buy — cans, boxes, bags and rolls, rounded the way shops actually sell them. Add it to your supply list and tick things off in the aisle. BUY ONCE, NOT THREE TIMES Spare material is sized to your hands: a first-timer gets a little more room for practice cuts, a pro gets tight margins. When two rooms need the same grout or the same tile, the list merges them and rounds once — often a whole pack cheaper. PULL THE TAPE Sizes aren't typed, they're measured. Drag the yellow tape out of its orange case and feel it click every ten…