Flooring Calculator

Add a waste allowance to the room area, then divide by the coverage per box and round up. For 200 sq ft with 10% waste and 20 sq ft boxes: 220 ÷ 20 = 11 boxes. Because you round up to whole boxes, there is always some leftover — keep it for repairs.

10% is standard for a straight layout. Go to 15% for a diagonal install or a busy, cut-up room, and toward 20% for herringbone or wide planks with long runs. Cheaper materials and simple rooms need less; patterned and premium floors need more.

Let wood and laminate acclimate in the room for a couple of days before installing, so the planks adjust to the humidity and don't gap or buckle later. Buy all your flooring from the same lot/batch at once — color and finish shift between runs — and save a box for future repairs.