The gravel will allow water to drain away from the base of the blocks, further decreasing the chance of frost heaving, and also give you an easy way to adjust the level of each block to get.

Gravel under deck blocks. There is a significant amount of clay in the soil, so i am putting gravel under the pier blocks. If your rocks are such that when you pour concrete, the rocks get fully. A gravel and stone landscaped backyard with rounded stone retaining wall palm trees and flowers.

The space is about 32 by 15. If you’re unsure about which foundation is best for. A concrete deck block can support quite a bit of weight as it normally has a footprint of 12 x 12 inches.

They should be used and spaced out like the deck blocks. This is 144 square inches. Our frost depth is only 12.

While not required, we suggest a solid and secure perimeter frame to hold the stone in place. Compacted gravel around wood posts allows for adequate drainage and keeps water away from the wood which helps to prevent rot and extend the life of the deck. Width), a two level deck or deck with roof.

The agfabric woven makes it easier to plan your yard to prevent weeds such. To make a better bond between the concrete and the block, wet the block. I live in pg county, md.

Sand is a good compromise to use as a surface under your floating deck. There should be a minimum of 4” of crushed stone under all. This is a modern style patio with over sized square concrete pavers and.