I would pre drill a hole the size of your hinge bolt through it. Dewalt black and gold drill bits are great. Good luck!!
The edges are bent to fit onto the sides of the post. I only put it on 1 side of post as The other side was in my neighbors drive way. There are holes drilled in the sides and front to put screws through to hold it steady.
I’ve never seen one other than the 4x4 size.
(Sorry that I'm replying late, but I just saw your question) I used two of these mender plates to reinforce a partially rotted 3-1/2in x 3-1/2in mailbox post. I used a 1/2in x 4in galvanized lag bolt, washers and nut (purchased separately) to secure the plates to the post, along with a bunch of #9 x 1-1/2in Simpson Strong-Tie Connector Screws in the remaining holes where the post was not rotted. Even though the post was somewhat smaller than the mender plates, the lag bolt holds the plates together very securely.
I called Simpson. They said NO.
Contact Simpson for this information
You will have difficulty driving the E-Z Mender into the concrete that supports the post. There is no room for the additional thickness of the E-Z Mender. It can work if the concrete isn't that thick and you can crack the concrete to create the room.
Fits a 4x4 post
If they are straight up and down wooden post 4x4, u could do that
Have only seen the width u saw