Measure the Room
Enter the full room length and width in metres. For irregular spaces, divide the floor into simple rectangular sections and calculate each section separately.
Floor area = room length × room width
Gallop Home Tool
Flooring Calculator
Estimate flooring packs, waste, underlay, skirting and material costs for a rectangular room.
Metric Calculator
FLOORING PLANNING GUIDE
Plan Flooring Packs, Waste and Material Cost Before You Buy
A reliable flooring estimate starts with room area, then adds waste, converts the requirement into complete packs, and optionally includes underlay and skirting. Use these six planning steps with the calculator above before ordering materials.
Add a Waste Allowance
Extra flooring is useful for cuts, damaged pieces, pattern alignment and future repairs. Straight layouts usually need less waste than diagonal or complex installations.
Required area =
floor area + waste area
Check Coverage per Pack
Use the coverage value printed on the flooring pack. The calculator divides the required floor area by this pack coverage and rounds upward to complete packs.
Packs required =
required area ÷ coverage per pack
Review Purchased Coverage and Leftover
Complete packs normally provide slightly more material than the exact calculated requirement. The calculator shows both total purchased coverage and the estimated leftover flooring.
Leftover =
purchased coverage − required area
Add Underlay and Skirting if Needed
Optional underlay is estimated using the flooring area including waste. Skirting is based on the room perimeter minus the entered doorway width.
Skirting length =
room perimeter − door width
Review the Material Cost
Add the price per flooring pack and optional prices for underlay and skirting. The calculator combines those selected material costs into one planning total.
Total cost =
flooring + underlay + skirting
Use the Result as a Planning Estimate
Actual flooring requirements can change with room shape, board or plank direction, pattern matching, cuts, damaged pieces, thresholds and installer methods. Complex layouts may need a larger waste allowance.
Confirm pack coverage, product dimensions and batch details before ordering. The calculator estimates flooring packs, underlay, skirting and basic material cost; labour, adhesives, trims, subfloor preparation, delivery and other project expenses are not included.