After alot of prep work, finally got my pegboards fitted in my garage. The garage is part brick part barn. Had to do a fair bit of work to frame up and get them flush to the brick work as the barn stiles were not flush to it at all. Left a bit exposed at the end as I may run another smaller pegboard across the side. Didn't quite measure right first time as I wanted to get both pegboards on to three frames, but needed to get a fourth in the end, but think it helped as I had more room to play with when installing.
Love the pegboards but would say the video of installation was a bit misleading as was not easy that easy to screw on tight once they were slotted in.