What is an acceptable wastage allowance for construction materials?
A wastage allowance is the extra material, as a percentage, that a contractor accepts will be lost to cutting, breakage, spillage and handling. It differs by material and by firm; what matters is fixing a figure for each material and measuring actual use against it.
Also called: Allowable wastage, Wastage norm, Wastage factor.
An allowance is a budget for loss, not a description of it. Loss inside the allowance is normal; loss above it needs an explanation.
Published allowances vary between sources, so use your own records from completed projects where you can.
In ERP Infra
You set the allowed wastage per material. Usage above it is flagged per site and must be explained.
Material leakage: how it worksLet’s put every site on one screen.
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