When using treated plywood bottom plates, it is important to make sure that they are the correct size for your columns. The bottom plate should be at least as wide as the column, and it should be at least as deep as the column's depth plus the thickness of the column's base plate.
Here are some additional benefits of using treated plywood bottom plates:
They are resistant to rot and insect damage.
They are easy to cut and install.
Problems you could run into when using treated plywood bottom plates
There are a few problems that you could run into when using treated plywood bottom plates. One problem is that treated plywood can delaminate, which means that the layers of plywood can separate from each other. This can happen if the plywood is not protected from moisture. If you use treated plywood bottom plates, it is important to make sure that they are well sealed and protected from the elements.
Finally, treated plywood can be more expensive than untreated plywood. However, the benefits of treated plywood often outweigh the cost.
Overall, treated plywood bottom plates are a great option for building square or round porch columns. They are easy to use, durable, and affordable.
