Hi
I'm putting a sort of 'stage ' in my garage to give me storage space high up. I was hoping to use materials I have left after other jobs, but this would mean joining 3 pieces of 9inch by 2 inch on edge ( to form a u shape) for the supports. Halving joints will only give me a 1 inch thickness which I don't think will do. What is considered the best way to do this joint. I will put a metal plate across the join, but as it will need to take my not inconsiderable weight and lots of 'stored stuff' I am nervous about it. As the timber is 9 inches across I would need to bore 5 inches in to do what I would usually do in this situation if I use 4 inch screws. There will be a ¾ ply floor over it and all the timber will be screwed to this.
Thanks in advance.