Hello. I need to build a small loft for storing stuff/moving boxes, etc., inside the garage. Would it work to use 120*45 for all the joists as per the image, with cc60 and a span across the garage of 3.6m? I'm planning to lay 22mm flooring chipboard over the joists and want to be able to load a decent amount of stuff there (including myself crawling). Or do I need to increase the dimension? Or is it good to attach screw joints like a loop around the framework and attach it to the roof trusses as shown in the illustration?
Best regards,
//Staffan
Best regards,
//Staffan
Seems a bit flimsy, I think. I don't have any programs on the computer I'm using now, so I can't check more thoroughly.
Think of it this way: You're going to have quite a bit of stuff permanently lying up there in a humid environment. The wood will "creep," as it's called in technical terms, quite a bit, and you'll end up with a banana-shaped underside on the joists. The flimsier the joists, the more banana-shaped they'll be. To avoid this, you should
1. Increase the dimension to 45*170, at least.
2. Screw-glue the chipboard to the joists. You run a bead of glue on top of the joist, place the board, and then screw it with, say, 4x75 mm chipboard screws at c/c 250 along the entire joist. A screwdriver can be handy here unless you're very strong and persistent...
Just some simple thoughts, someone else might have more advice.
Think of it this way: You're going to have quite a bit of stuff permanently lying up there in a humid environment. The wood will "creep," as it's called in technical terms, quite a bit, and you'll end up with a banana-shaped underside on the joists. The flimsier the joists, the more banana-shaped they'll be. To avoid this, you should
1. Increase the dimension to 45*170, at least.
2. Screw-glue the chipboard to the joists. You run a bead of glue on top of the joist, place the board, and then screw it with, say, 4x75 mm chipboard screws at c/c 250 along the entire joist. A screwdriver can be handy here unless you're very strong and persistent...
Just some simple thoughts, someone else might have more advice.