根据板材的宽度，计算覆盖特定平方英尺面积所需的材料总线性英尺长度。适用于地板、墙板等材料的用量计算。
The calculation is based on the following formula:
Linear Feet = (Total Sq Ft × 12 / Board Width in Inches) × (1 + Waste Factor / 100)
This formula determines how many "strips" of the specified width are needed to fill the total area, and then sums their lengths. The waste factor accounts for cuts, mistakes, and unusable material.