Placing the beam on the side (so that it's a diamond rather than a square) ensures that it is as strong as it can be - you're hanging not on 7cm of wood, but on 10cm. But this means that while one end of the beam attaches nicely to the cross, the other end is harder to manage.



To make sure I have some flat surface to work with at the end of the beam, I cut a leftover bit of it in half, diagonally, and attached the triangles to the bottom sides of the beam with a couple screws. That's one way of doing it, but I'm sure there are other options as well, depending on what you want this end to attach to. This solution is perfect for placing the beam on a wardrobe and works fine with the 6-poster bed, but you may need something slightly different if you want to attach it to a brace in the wall.



Once you have a flat surface, attaching the end to whatever it will be resting on in the same way you attached the other end to the cross: drill a hole for a dowel, and drill a hole and place a dowel in whatever will support the frame. Now just make sure that the frame won't 'jump out' by tying it to whatever supports it.