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what size is a quarter sheet cake

A standard quarter sheet cake is usually about 9 x 13 inches and around 2 inches tall.

Quick Scoop: What size is a quarter sheet cake?

For most home bakers and grocery-store bakeries, when people ask “what size is a quarter sheet cake” , they’re almost always talking about a rectangular cake that measures:

  • Approximately 9 x 13 inches.
  • About 2 inches deep (the common pan depth).
  • Designed to fit a standard 9 x 13 inch metal baking pan or “quarter sheet” pan.

Some commercial pans are listed as 9.5 x 13 inches , but they’re treated as the same general quarter-sheet size.

Why the size can vary a bit

There isn’t a single worldwide standard, and different bakeries or pan makers use slightly different measurements.

  • Many sources define a quarter sheet as 9 x 13 inches.
  • Commercial pan charts sometimes say 9.5 x 13 inches.
  • A full sheet might be 18 x 24 or 18 x 26 inches, so a “quarter” is roughly one quarter of that, not always mathematically exact.

Because of that, if you’re ordering from a bakery , it’s smart to:

  1. Ask, “What size is your quarter sheet cake in inches?”
  1. Confirm how many people it serves based on how they cut the slices.

Rough servings for a quarter sheet

This isn’t your main question, but it helps to picture the size on a table.

  • A 9 x 13 inch quarter sheet usually serves about 12–20 people , depending on slice size.
  • Smaller kid-party slices or coffee-break pieces mean more servings; big party slabs mean fewer.

Mini example: Planning a small party

Imagine you’re hosting a casual birthday with 15 guests.

  • A 9 x 13 inch quarter sheet cake, cut into neat rectangles, will comfortably cover that guest list with a slice for everyone and a couple of extras.
  • If you expect people to go back for seconds or you love generous portions, you might step up to a half sheet instead.

TL;DR

A quarter sheet cake is typically about 9 x 13 inches and 2 inches deep , with minor size variations depending on the pan or bakery.

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