materials · 3 min read
Why Waste Factor Matters in Estimating
Running short costs more than the excess — a small waste factor prevents a costly re-delivery.
What the waste factor covers
Spillage during unload and spread.
Irregular bed shapes and corner losses.
Cutting waste on tile, flooring, and roofing.
Typical values
Bulk landscape material: 5–10%.
Tile and flooring, straight lay: 10%. Diagonal or complex: 15–20%.
Roofing: 10% for simple gables, 15–20% for hip-and-valley roofs.
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These results are estimates only. Confirm quantities, compaction, waste, and delivery requirements with your supplier or project professional before ordering materials.