Layout & Trim
The layout & trim cluster: a plank layout planner (full rows, last-row width and a warning if the last row is under half a plank), a transition-strips & trim calculator (linear ft), a baseboard / quarter-round calculator (perimeter − openings), an expansion-gap reference by material, and a stair-nosing material calculator. Baseboard and quarter-round here are floor-edge trim quantities, not carpentry.
Confirm coverage against your product’s box/spec sheet and buy 5–10% extra for cuts, waste and future repairs. Coverage and box sizes vary by brand.
Typical industry planning values. These are typical planning values — confirm against the manufacturer’s install instructions and your product’s spec sheet.
Plank Layout PlannerPlan a plank floor layout: how many full rows fit, the last-row width, and whether to rip the first row so edge rows look balanced. Free calculator + formula.Transition Strips & Trim CalculatorWork out how many transition strips and trim pieces you need from the total linear feet of doorways and thresholds. Free calculator with formula and example.Baseboard & Quarter-Round CalculatorEstimate baseboard and quarter-round: room perimeter minus door openings gives the linear feet, then the number of pieces to buy. Free calculator + formula.Expansion-Gap ReferenceReference for the perimeter expansion gap by floor type: laminate/LVP, engineered and solid hardwood, plus typical on-site acclimation time. Labeled typicals.Stair-Nosing Material CalculatorCalculate stair-nosing material for a staircase: linear feet and piece count from the stairs and tread width, plus tread area. Free calculator + formula.
Every Layout & Trim tool is calculated server-side — visible immediately — with its formula, a worked example and a reference table, and works on the quantities you measure and the prices you enter from your own quotes. Background reading is in the guides.