Personally i would install the hangboard directly to the concrete.
Mounting a hangboard on a concrete wall.
Put a wall plug over the end of a 3 screw and bang it into the wall with a hammer and tighten up.
All together now all kinds of wall join in.
3 put the battoning underneath and drive screws straight in.
Traditional mounting requires one to screw holes into the wall and fasten the hangboard in place.
Use 3 flat head screws to attach the hangboard through the plywood and into those boards.
In this video jon shows how to quickly and safely mount a hangboard aka project board over your doorway.
Check out the latest from ninjawarriorfam.
However some of the more solid options can be used virtually anywhere.
This is especially important if you weight more than 150 pounds.
While this offers great security you may not have this option.
Use the butt of your leatherman or your knuckles or an actual stud finder to tap the wall all across the doorframe horizontally and locate the studs.
Your completed hangboard mount should look like this.
If you mount it to a piece of plywood the screws would only be holding on to 3 4 technically 23 32 d i would use 1 4 or 3 16 x 2 1 4 or longer tap con screws in each of the mounting holes.
Then use the screws that come with the hangboard for the rest of the holes.
Repeat this process until you have put in 6 screws 4 in each corner and 2 in the middle along the top and bottom.
We used 5 of them.