What size stone can be used for footings for wood?

Using stone for footings in wood construction involves considerations for stability, drainage, and load distribution. The correct size of stone for footings, which was identified as no greater than 3/4 inch, is particularly advantageous for a few reasons.

Stones of this size are large enough to provide sufficient bearing area and strength to support the loads transferred from the wood structure. At the same time, they are small enough to allow for proper compaction and interlock, which helps in creating a stable base. The size also facilitates good drainage characteristics. A stone size of no greater than 3/4 inch can efficiently manage water runoff and prevent the accumulation of moisture around the footings, which is important in maintaining the integrity of wood structures.

Choosing a stone size larger than 3/4 inch could create gaps that compromise the stability and drainage properties of the footing. Conversely, stone smaller than this might not provide adequate support for the structural loads or could lead to excessive settling over time. Thus, the specification of 3/4 inch optimally balances these factors for effective footing performance in wood construction.