Guides

The research and methodology behind HammerFolk's calculators, explained and sourced.

How Much Extra Flooring to Buy: The Waste Allowance Rule Explained
A waste allowance isn't padding — it's covering material that gets cut off and thrown away during a real installation. Here's why the standard figure moves between 10% and 20% depending on your layout, and why guessing low costs more than it saves.

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