I am trying to make a gallows for Halloween. I found this on wikihow (picture here) which shows using something like a 2x4 as a brace for the 4x4 which is attached to the 4x4 and floor. I found this question, here, that describes something similar to what I am trying to accomplish. My concern is the floor is only about 1" thick so not sure this joint would work.
I would like to re-use the gallows again, so using nails is probably not my best option. I was looking into using an insert nut (similar to what I see used on beds). I also thought about using a Kreg Jig, but the conern of the floor only being 1" thick was a concern again.
So, what would be the best approach, in this case, especially the joint between the 2x4 and floor?