really sorry for a posting a noob question (I did try to specifically see if this was answered somewhere else and couldn't see it).
Anyway, I'm doing a simple home DIY project to build a squat rack in my garage gym. It will be mostly made from 2x4 except the main uprights taking the weight will be 4x4. I've seen a design that I like elsewhere (but they used ONLY 2x4).
My problem is, I'm not sure how to join two specific pieces of the 2x4 to the 4x4. I've included a really basic drawing (again sorry for how basic this is) which shows the set up as if you're looking from the side. The Black lines are 4x4 timber posts and the red and blue are 2x4. I'm trying to figure out how to join the top and bottom red 2x4 pieces to the 4x4 upright and the (blue) 2x4 that will be fixed to the wall. I don't want to (more like can't) screw into the end grain of the 2x4 (to be honest don't have screws long enough to get through the 4x4 first!) and I don't own a pocket hole jig.
FYI, there will also be two 2x4s placed side on (like the one in the middle) at the top and bottom of the frame for extra stability, but I need the inside bits to attach the angled braces to.
Any ideas? One thought is to not do the inside pieces at top and bottom, do away with the top angled brace and screw the bottom angled brace directly into the concrete garage floor.