Sheet Pans
Cookware & Bakeware · 8 specs
Direct Answer
Commercial baking sheet pans are standardized across four fractional sizes: Full Sheet (18×26"), Half Sheet (13×18"), Quarter Sheet (9×13"), and Eighth Sheet (6.5×9.5"), with a 1-inch wire-reinforced rim preventing warping under high thermal shock.
Source: Commercial Baking Standards / NSF International Standard 2 · Last reviewed Aug 28, 2026
Specs
| Governing Standards | NSF International Standard 2 / Commercial Baking Standards |
| Full Sheet Pan | 18 × 26 inches (45.7 × 66.0 cm) | 468 sq in | Commercial ovens only |
| Half Sheet Pan | 13 × 18 inches (33.0 × 45.7 cm) | 234 sq in | Standard home oven benchmark |
| Quarter Sheet Pan | 9 × 13 inches (22.9 × 33.0 cm) | 117 sq in | Half of Half Sheet |
| Eighth Sheet Pan | 6.5 × 9.5 inches (16.5 × 24.1 cm) | 62 sq in | Toaster ovens & prep |
| Jelly Roll Pan | 10.5 × 15.5 inches (26.7 × 39.4 cm) | 163 sq in | 1" rim for rolled cakes |
| Standard Rim Height | 1.0 inch (2.54 cm) with encapsulated galvanized steel wire bead |
| Standard Aluminum Gauge | 18-Gauge (1.0 mm / 0.040") commercial standard vs 16-Gauge heavy-duty |
Standard Sheet Pan Sizing Matrix
| Sheet Pan Size | Dimensions (Inches) | Dimensions (cm) | Surface Area (sq in) | Typical Oven Compatibility |
|---|---|---|---|---|
| Full Sheet | 18" × 26" | 45.7 × 66.0 cm | 468 sq in | Commercial rack ovens (does not fit standard home 30" ovens) |
| Half Sheet | 13" × 18" | 33.0 × 45.7 cm | 234 sq in | Standard residential 30" gas and electric home ovens |
| Quarter Sheet | 9" × 13" | 22.9 × 33.0 cm | 117 sq in | Large countertop convection ovens & home ovens |
| Eighth Sheet | 6.5" × 9.5" | 16.5 × 24.1 cm | 62 sq in | Standard countertop toaster ovens & prep mise en place |
| Jelly Roll | 10.5" × 15.5" | 26.7 × 39.4 cm | 163 sq in | Standard home ovens for sponge cakes and bar cookies |
Why Home Cooks Use Half Sheet Pans
The Half Sheet Pan (13 × 18 inches) is the foundational standard in professional kitchens and home cooking. Unlike consumer cookie sheets (which often lack rims or have insulated double-walls that inhibit bottom browning), commercial half-sheet pans utilize 18-gauge natural aluminum for rapid, uniform heat conduction and a galvanized steel-reinforced wire rim that maintains flat planar rigidity up to 500°F (260°C).