A standard quarter sheet pan is about 9 x 13 inches (roughly 23 x 33 cm), with a rim that’s about 1 inch high.

Standard size

  • Most baking guides define a quarter sheet pan as 13 inches long and 9 inches wide with a low rim of about 1 inch.
  • Some manufacturers list very close variants like 9.5 x 13 inches, but they are functionally the same size in most recipes.

Why sizes vary a bit

  • Different brands and materials (aluminum vs stainless steel) can lead to small differences, such as 9 x 12.5 inches being sold as a quarter sheet pan.
  • Online discussions and baking forums note that while dimensions can shift by half an inch or so, pans marketed as quarter sheet still behave similarly in the oven.

How it compares to other sheet pans

  • A full sheet pan (commercial) is typically 26 x 18 inches, so a quarter sheet is about one-quarter that surface area.
  • A half sheet pan for home ovens is usually 18 x 13 inches, and two quarter sheet pans together roughly match that footprint side by side.

Common uses

  • Quarter sheet pans are popular for small-batch cookies, roasting a single tray of vegetables, or toasting nuts in home ovens.
  • They also fit well in many toaster ovens, which is why brands market “9 x 12.5 inch quarter sheet pans” specifically for that purpose.

Information gathered from public forums or data available on the internet and portrayed here.