sizeandspec

Brick sizes

The most common U.S. brick, the modular brick, is 3 5/8 × 2 1/4 × 7 5/8 in. With a 3/8 in mortar joint it lays out on a 4 × 8 in grid, three courses to 8 in.

Modular brick face drawn to scale beside a credit card Credit card Modular brick 7 5/8 in19.4 cm 2 1/4 in57.2 mm
Modular brick face drawn to scale beside a credit card

Measurements

Common brick sizes (actual)
BrickDepth × height × length
U.S. modular3 5/8 × 2 1/4 × 7 5/8 in (92 × 57 × 194 mm)
U.S. standard3 5/8 × 2 1/4 × 8 in (92 × 57 × 203 mm)
U.S. queen3 × 2 3/4 × 7 5/8 in (76 × 70 × 194 mm); some makers use 2 3/4 in depth or 8 in length
U.S. king3 × 2 5/8 × 9 5/8 in (76 × 67 × 244 mm)
UK standard102.5 × 65 × 215 mm (4 × 2 9/16 × 8 1/2 in)

Questions people ask

How many modular bricks per square foot?

About 6.75 bricks per square foot of wall with 3/8 in joints.

Related sizes

Sources and method

  • Brick Industry Association Technical Note 10
  • UK standard brick format (BS EN 771-1)

Imperial and metric values are converted with 1 in = 25.4 mm exactly and rounded only for display. Found a mistake? Report it and we will correct the page.