What Waste Factor Should I Use for LVP?

For a rectangular room with no diagonal walls, few obstacles, and a straight-lay plank pattern, plan on 10% waste. That figure lines up with the Resilient Floor Covering Institute's installation guidelines and covers standard trim loss at the walls, end-matching between rows, and a few ruined planks from mis-cuts.

Once the layout gets more demanding, the number moves. Diagonal layouts and rooms with multiple jogs, bay windows, or more than one closet push waste to 15%, per Shaw's LVP installation instructions, because more cuts end up too short to reuse in the next row. Herringbone, chevron, and floor plans with heavy furniture cutouts or multiple room transitions climb to 20%, the figure Mohawk's installation guidelines use for complex layouts, since a large share of every cut plank becomes scrap rather than a starter piece for the next row.

Even on the simplest square room, don't order at 0% or 5% waste as your only cushion — treat 5% as the floor, not the target, because it leaves no room for a warped plank, a bad click-lock edge, or a measuring error that shows up mid-install.

Room shape is the first lever. An L-shaped room, a floor plan with several closets, or a space broken up by an island or fireplace hearth creates short runs where a cut plank from one row rarely fits cleanly into the next. Each additional interior corner or jog adds cut lines that behave more like the 15% diagonal case than the 10% straight-lay case, even if the overall pattern is still a straight lay.

Pattern choice matters just as much as shape. A plank cut at 45 degrees for a diagonal or herringbone layout leaves an offcut with an angled end that almost never matches the angle needed elsewhere on the floor, so it goes in the scrap pile instead of starting the next row. Because standard LVP planks run about 48 inches long, a bad angled cut wastes a meaningful chunk of material rather than a sliver — one reason herringbone and chevron sit at the 20% end of the range rather than the 10% end.

Installation method plays a smaller but real role. Floating click-lock floors tolerate more trial-fitting before a cut is final, so installers can plan cuts to reduce waste. Glue-down installs commit each plank the moment it's set, which means a misjudged cut becomes scrap immediately rather than a reusable offcut for a doorway or closet.

The most common failure is running short with two rows left to lay. Reordering mid-job means matching the dye lot and finish batch on the box label, and manufacturers don't guarantee an exact color match between production runs — a visible seam between old and new material is the usual result, especially under raking light.

The second failure is a rounding problem, not a percentage problem. LVP typically ships in boxes covering around 24 sq ft, so an order that's short by even a handful of square feet often means you're short a full box, not a partial one. A waste factor that looks fine on paper can still leave you one box away from finishing because the math didn't round up to a whole carton.

The third failure shows up months later: no attic stock. A single gouged or water-damaged plank is a five-minute fix if you kept material from the original run, and a frustrating hunt for a discontinued color if you didn't. Setting aside an extra 5% beyond your installation waste, on top of the 10-20% you already added for cutting, gives you replacement planks that actually match.

Rather than picking a flat percentage and hoping it holds, run the room dimensions and pattern through the /lvp-flooring-calculator so the waste allowance adjusts for the actual layout — straight lay, diagonal, or herringbone — instead of a single generic markup.

If you're still deciding between plank orientations or comparing how much a pattern change affects material cost, the /guides/lvp-installation-patterns-and-waste guide breaks down waste by pattern in more detail than a single percentage can. For the full material list, including underlayment and transition pieces alongside the plank count, the /guides/how-much-lvp-do-i-need guide walks through the rest of the order.