How do I know how many blocks I need to build a block wall foundation under a double-wide trailer?

Answer by  Jakecutter (1819)

You would have to have the measurement for the trailer and then the measurements of the space it is going in. You would need as many blocks to cover the surface area as well as the depth to add a decent sized foundation. It's really just simple math involved for the project.

Answer by  ROBIN71 (7)

The person who was building wall foundation,would have to have the measurement for the trailer and then the measurements of the space it is going in and he would need as many blocks to cover the surface area as well as the depth to add a decent sized foundation.