Biscuit Joint Calculator

How It Works

Biscuits (also called plates) come in three standard sizes: #0 (smallest, for narrow stock), #10 (medium, most common), and #20 (largest, for wide panels). They swell when glue is applied, creating a tight joint. Biscuits primarily aid in alignment rather than adding joint strength — the glue does the real work. Space them 6-8 inches apart for edge joints.