Glass Quantity Calculator
An area estimate for sheet glass; it does not estimate foil or solder.
- 01 Step 1. Enter the finished width and height in inches.
- 02 Step 2. Choose a cutting-waste allowance, allowing more for complex cuts, directional texture or recuts.
- 03 Step 3. Read the square footage and divide that allowance between the glass colours in your pattern.
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Glass needed 1.67 sq ft
Area in square feet = width × height ÷ 144 × (1 + waste percentage ÷ 100). The default is a planning example, not a universal waste rate.
A sheet’s area alone does not tell you whether its shape will fit a long template. Lay out your largest pieces before buying and allow for border strips, defects and grain direction. This calculator does not estimate foil, solder, framing or structural support.