Hi group,
I have built a high bedframe out of CLS and planed timber. Its size is approx 2metres but 1.2metres. The two longest joists are 2x4 planed timber and spans the 2 metre gap. The 4x2 is 4ft apart, to span this gap I used 3x2 CLS These are at 400mm centres. There is a piece of
1x1 attached to the inside of the 4x2 using some 2 inch screws from the inside. A 1x1 area is notched out of the bottom of the 3x2 at each side which rests on the 1x1, then two No 10/4inch screws are screwed through the outside of the frame into the 3x2, one screw goes through the 4x2, 1x1 and into the 3x2 the second screw goes thoough the 4x2 straight into the 3x2 slightly above the 1x1, this is on both sides. The top 3x2 is approx 15mm lower than the top of the 4x2 to accommodate a peice of 12mm MDF which will be screwed to the 3x2 to create a flat surface for the matress. My question is, will this support the weight of two people, its not going to give way in the middle of the night is it? The 3x2 is rated ok for this sort of gap? the no 10 4 inch screws are suitable to hold the joists to the frame? To be on the safe side would adding in more 3x2 solve the issue (its very cheap!) instead of every 400mm, say every 200mm? would this distribute the weight better?Thanks, James