Post To Concrete Pier Connection

Post and column bases secure the bottom of posts or columns to concrete and are perfect for decks or patio covers.

Post to concrete pier connection.

The bcs allows for the post to beam connection of 2 2xs to a 4x post or 3 2xs to a 6x post. I never use lag bolts. The top of the post base straddles the wood support post and provides nail holes which should be filled to add strength to the connection. Figure 1 12 shows the bending moment versus rotation relationship for perma.

Post bases have an elevated bottom compartment with an opening that is designed to lock into a concrete anchor which is embedded in the top of the concrete pier. Post base on a plywood deck. I then use through bolts that pass through the beam and this post extension to complete the connection. The drawing at the bottom requires a new steel reinforced concrete foundation.

The remainder of the 6x6 post laps over the inner or outer vertical face of the beam. Models are available for attaching to existing hardened concrete wet concrete as well as wood. The blue box shows the post to block connection. I prefer this method because it creates solid bearing of the deck all the way down to the concrete pier.

Log hog screws are used to hold the post to the solid blocking below. In this connection the bottom of the post has a 3 4 stub tenon that is routed into a plywood sub floor. Post base timber pier rod plate. A galvanized steel plate or pvc spacer is used to separate the concrete and the wood.