## How high is a course of block?

Standard concrete blocks are 15 5/8 inches by 7 5/8 inches and there is usually 3/8 inches of mortar between them so in the wall it is safe to say that a block and mortar on two sides is approximately 16 inches by 8 inches. Your wall is 1,300 feet long which is 1,300 × 12 = 15,600 inches long.

How tall is a course of CMU?

Typically, concrete masonry units have nominal face dimensions of (height by length) 8 by 16 in. (203 by 406 mm), and are available in nominal widths ranging from 4 in. to 16 in.

What are the dimensions of a standard concrete block?

Concrete Block (CMU) Sizes

CMU SIZE NOMINAL DIMENSIONS D X H X L (INCHES) ACTUAL DIMENSIONS D X H X L (INCHES)
10″ CMU Half-Block 10″ x 8″ x 8″ 9 5/8″ x 7 5/8″ x 7 5/8″
12″ CMU Full Block 12″ x 8″ x 16″ 11 5/8″ x 7 5/8″ x 15 5/8″
12″ CMU Half-Block 12″ x 8″ x 8″ 11 5/8″ x 7 5/8″ x 7 5/8″

### How tall is a course?

A single standard brick course is 86mm (76mm of brick and 10mm of mortar).

What is a course of block?

A course is a layer of the same unit running horizontally in a wall. It can also be defined as a continuous row of any masonry unit such as bricks, concrete masonry units (CMU), stone, shingles, tiles, etc.

What is masonry coursing?

Masonry coursing can be arranged in various orientations, according to which side of the masonry unit is facing the outside and how it is positioned. Stretcher: Units are laid horizontally with their longest end parallel to the face of the wall. This orientation can display the bedding of a masonry stone.

## How many courses of concrete block can be laid in a day?

Because of their weight, hitting a block will cause the one underneath (if you are more than 1 course up) to move also and laying a block wall, even though the blocks are heavy and cumbersome, requires a light touch. We would not recommend laying more than 5 courses of blocks in one go.

How big are the holes in a concrete block?

In addition to the hollow core, a 12-inch sash block also has a 3/4 inch square notch running up the entire height of a long-sided face. The notch is located 7 7/16 inches from the left side of the block. A 12 x 8 x 12-inch pier block has two equal hollow cores measuring 7 3/4 inches wide by 8 5/8 inches long.

How thick is the wall of a concrete block?

Typically, concrete masonry units have nominal face dimensions of 8 in. (203 mm) by 16 in. (406 mm), available in nominal thicknesses of 4, 6, 8, 10, 12, 14, and 16 in. (102, 152, 203, 254, 305, 356, and 406 mm).

### How high is a 10 course block wall?

Thus a wall with 10 blocks laid end to end would be 10 times 16 plus 4 1/2 inches, or 164 1/2 inches long. Figure how many courses you need based on block depth of 8 inches, plus half an inch for mortar. A wall 25 inches high would be 3 courses.