I am installing a series of pull-up bars all the way down my hallway, kind of like really spaced out monkey bars, and would like some advice on my proposed design, b/c I have zero experience with construction, and I want to make sure this is safe.
These bars will need to hold the forces of an 82kg (180lb) person swinging on them and between them.
This seems to hold really well and supports my weight comfortably.
Those are 0.25" holes in the base of that flange. These flanges will be holding the steel tubes that will span the width of the hallway.
I guess the most obvious idea is to use lag screws to attach the flanges into the the wood, so something like this: https://www.lowes.ca/screws/classic-railing-brown-lag-screws-2-12-in-24-count_g2437448.html
My concern is that I cannot find definitive info about the shearing force the lag screws can withstand when used with the 2x6 SPF lumber, and I am concerned that there's only 1-3/8" of wood that will be holding the screws. There'll be 4 screws per side, but this still seems a little sketchy to me, considering that I plan to swing on these bars.
My best idea so far is to use 1 long lag screw, and 3 short ones per flange. The long one goes into the stud in the top hole, so the existing deck screw above it shouldn't interfere with the strength of the lag screw (which is likely not true for the bottom hole, where the deck screw would be right under the lag screw, right?).
My secondary idea is to use small 2x6 sections to double-up the wood where the bars attach, thus giving the lag screws 2-3/4" of wood to bite into, but I'm not sure whether this is necessary?
What do you think? Will this hold? Any advice would be much appreciated!