Measure the length of the log wall to fit your base plate. You need a base plate to secure the stabilizers and posts for the porch.
Cut a 2-by-12-inch piece of wood that matches your log wall to make a base plate. If you don’t have a miter saw, you can have the wood cut to your specifications at your home improvement store or lumberyard.
Attach the base plate to the log wall with the 4-inch wood screws. Use your electric drill to drive the screws in tight. Secure three screws in a vertical line every 12 inches until you reach the end of the wall.
Caulk between the base plate and the log wall to create a water barrier. The caulk will help prevent standing water between the wood.
Install metal joist hangers on the base plate to attach the floor joists. Offset the hangers with the wood screws.