Thick as a brick

Bricks are arranged in a number of ways
which hearken one back to earlier days.

The patterns have names which masons are fond
of referring to as a certain “Bond.”

Herringbone, Rat-trap, English and Running
Stretcher and Basket, but Flemish is stunning.

A layer of brick is known as a “wythe”
How thick is a wall? Maybe three or five?

How thick is a brick? The wythes man was asked:
It depends on the brick, you stupid ass.