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`nB = f( "length" , "width" , "height" ,"(8x12x8)")`

Enter a value for all fields

The **Blocks Needed for a Foundation** calculator computes the number of blocks needed for the walls of a foundation.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**L**) Foundation Length. - (
**W**) Foundation Width - (
**H**) Foundation Height - (
**BS**) Block Size (Choose One)

**Blocks Needed (nB):** The calculator returns the total number of blocks needed for the foundation, and the approximate amount of concrete needed for the mortar joints.

To compute the amount of concrete needed for a poured foundation, CLICK HERE.

The Blocks Needed for a Foundation calculator assumes that the foundation wall is one block deep. The user identifies the dimensions of the foundation in height and length and width (see diagram) and chooses the types of block from the pull down list.

To provide the number of blocks, vCalc calculates the area of the walls and then uses the standard dimensions of the blocks to estimate how many blocks are needed for the construction of the walls. The standard dimensions of the blocks take into account the mortar joint. This calculator provides a conservatively high estimate for the number of blocks and assumes that no partial blocks can be reused to complete the foundation.

This is an ESTIMATION, and actual number of bricks or blocks needed may vary based on the thickness of the mortar joints and other factors.

Standard brick sizes are measured by height. length, and width (depth) and the choices include: block(8x12x8)

- block(8x12x12)
- block(8x8x16) - most common
- block(8x16x12) - very common
- block(8x8x18)
- block(8x18x12)
- block(8x18x16)
- block(8x8x24)
- block(8x24x12)
- block(2x24x16)