This tool is part of these guided projects. Each project provides step-by-step instructions with checklists and all the tools you need in one place.
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Calculate laminate flooring boxes and square footage for your room. Includes 10% waste factor for cuts, defects, and future plank replacement.
Calculate how many floor or wall tiles you need. Enter room size, tile dimensions, grout gap, and waste percent for accurate tile count and coverage.
Estimate LVP and vinyl plank flooring for any room. Calculate square footage, cartons needed, and waste allowance for click-lock or glue-down vinyl installs.
Measure the full rectangle the carpet must cover, including closets opened into the room.
Area (sq ft) = Length × WidthWhen room width exceeds roll width, multiple strips run lengthwise. Add 5% for pattern match and trimming.
Strips = ceil(Width ÷ Roll Width); Linear Ft = Strips × Length × 1.05Total carpet purchased equals linear feet pulled from the roll times roll width, not net room area alone.
Order (sq ft) = Linear Feet × Roll WidthUpdated: July 2026
One 12 ft strip covers the 12 ft width. Need 14.7 linear ft (with waste) × 12 ft = ~176 sq ft ordered vs 168 sq ft room.
Two strips required (18 ft width ÷ 12 ft roll). Two seams run lengthwise; order ~378 sq ft with 5% waste factor.
Narrow 24×8 ft hall may use one 12 ft roll width with significant waste on the second half — compare remnant use vs broadloom order.
Estimate wall-to-wall carpet before ordering from a dealer or installer. Enter room dimensions and roll width (typically 12 or 15 ft) to get linear feet, square footage including seams and waste, and number of seams required.