Full sheet pan, 26 by 18 inches
Quick answer
A full sheet pan measures 26 by 18 inches, which is 468 square inches of surface. It does NOT fit a standard domestic oven, which is usually only 22 to 24 inches wide inside. A commercial size. It does not fit a standard domestic oven, which is the single most common sheet-pan buying mistake.
These are the commercial sheet pan sizes, which are standardised across the industry.
| Size | Dimensions | Area | Fits a home oven |
|---|---|---|---|
| Full sheet | 26 by 18 in | 468 sq in | No |
| Half sheet | 18 by 13 in | 234 sq in | Yes |
| Jelly roll | 15.5 by 10.5 in | 162.75 sq in | Yes |
| Quarter sheet | 13 by 9.5 in | 123.5 sq in | Yes |
| Eighth sheet | 9.5 by 6.5 in | 61.75 sq in | Yes |
How big is a full sheet pan?
26 by 18 inches, giving 468 square inches of surface. A commercial size. It does not fit a standard domestic oven, which is the single most common sheet-pan buying mistake.
These sizes are standardised across the commercial baking industry, which is why a recipe that calls for a half sheet means a specific thing rather than an approximate one. The naming works by division: a full sheet is the base unit, a half sheet is half of it, a quarter sheet half again.
Which sheet pan actually fits a home oven?
Domestic ovens are usually about 22 to 24 inches wide inside, and a full sheet at 26 inches simply will not go in. Half sheet is the largest size that reliably fits.
This is the single most common sheet pan buying mistake. A full sheet is a commercial pan for a commercial oven, and it will not go in. The half sheet at 18 by 13 inches is the largest size that reliably fits a domestic oven, and it is the size nearly every home recipe means when it says "sheet pan". Two of them fit most ovens on separate shelves.
Why bare aluminium and not nonstick
Aluminium conducts at about 237 W/m-K, roughly fifteen times better than stainless at 16. That is why commercial sheet pans are bare aluminium: nothing else browns as evenly for the price. A dark nonstick coating absorbs more radiant heat and browns bases faster than the recipe expects, which is why baking instructions often tell you to reduce the temperature for dark pans.
Bare aluminium also discolours and develops a patina with use. That is cosmetic and does not affect performance, and it is the reason professional sheet pans look the way they do.
Sheet pans and racks
- Nordic Ware
Nordic Ware Naturals Quarter Sheet with Oven-Safe Nonstick Grid
$14.88 Check pricePrices change often - Nordic Ware
Nordic Ware - 43172AMZM Nordic Ware Half Sheet with Oven Safe Nonstick Grid, 2 Piece Set, Natural
2 pieces$23.81 Check pricePrices change often - KITCHENATICS
KITCHENATICS Half Sheet Cooling Rack Stainless Steel Oven Safe Set of 2
$30.98 Check pricePrices change often
Common questions
What are the dimensions of a full sheet pan?
26 by 18 inches, which is 468 square inches of surface. These are standardised commercial sizes, so the figure is consistent across manufacturers. Rim height varies slightly between brands, usually around one inch, and it is the one dimension that is not standardised.
Will a full sheet pan fit in my oven?
Almost certainly not. A full sheet is 26 by 18 inches and domestic ovens are usually only 22 to 24 inches wide inside. It is a commercial pan for a commercial oven. The half sheet at 18 by 13 is the largest size that reliably fits a home oven and is what home recipes mean.
How many sheet pans should I own?
Two half sheets, at minimum. The limiting factor when roasting is oven shelf space rather than anything else, and one pan means cooking in sequence while the first batch goes cold. A wire rack that fits inside one is the highest-value addition after the second pan, because it puts air under the food instead of a wet surface.
Should I buy nonstick sheet pans?
Generally no. Bare aluminium browns more evenly, costs less and lasts indefinitely, while a nonstick coating on a sheet pan wears out under metal spatulas and high oven heat. Parchment paper solves sticking completely and costs almost nothing. Dark coated pans also brown bases faster than recipes assume.
What is a jelly roll pan?
A jelly roll pan is 15.5 by 10.5 inches, slightly smaller than a half sheet at 18 by 13. The two are frequently sold interchangeably, which matters if you are buying a wire rack to fit inside one. Measure before you buy accessories rather than assuming they are the same size.