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Wallpaper & Wallcoverings

Roll coverage mathematics, pattern repeat alignment (straight vs. half-drop), and trimming waste allowances.

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Wallpaper Roll & Pattern Repeat Estimator

Calculate exact wallpaper roll requirements factoring in pattern repeat (straight vs. half-drop), ceiling height, doors/windows deductions, and waste margin.

Formula: Usable Strip = ceil(Height / Repeat) × Repeat | Rolls = ceil(Total Strips / Strips per Roll)

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Essential Wallpaper & Wallcoverings Guides

7 min read Feb 14, 2026

Wallpaper Roll & Pattern Repeat Calculations: The Complete Measurement Guide

How to calculate wallpaper rolls accurately factoring in pattern repeat (straight vs. half-drop), ceiling height, door deductions, and trimming waste.

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