Laminate Pouch Size Calculator
Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer
Last updated: July 27, 2026Laminate Pouch Size Calculator
Choosing the right laminating pouch size? This calculator adds a proper sealed border margin to your document dimensions.
Required Pouch Size = Document Size + (Border Margin x 2 sides)
Example
An 8.5x11 inch document, 1/4 inch border margin:
Minimum pouch size: 9.00 x 11.50 in
Why a Border Margin Is Essential
Leaving at least a 1/4 inch sealed border margin on all sides ensures the heat-sealed plastic edge fully surrounds the document - laminating too close to the edge risks cutting through the seal or trimming into printed content when squaring up the final piece.
Rounding Up to Standard Pouch Sizes
Since laminating pouches are commonly sold in standard sizes (letter, legal, ID card, etc.) rather than custom dimensions, rounding this calculated minimum up to the next standard pouch size is typically the practical next step.