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?
The standard means of connection of long bed sides to end frames is to
use bolts, for maximum rigidity the long member should be tenoned into
the end frame to about 1/3rd depth and bolted. The dimensions should be
fine, our kingsize is made from pine of those dimensions. The long
members are bolted but not tenoned and the bed does rack somewhat,
especially during, ah more physical activities.
You may have problems with the solid base too. Generally you would use
slats running cross wise and sitting on your 1x1. Our kingsize has a
strip down the middle and a central support as well to prevent sag in
the middle. If you go down either route it is advisable not to but the
wood/plywood right up to the 4x2, leave a gap and you will get less
creaking, especially during those physical activities.
If I was to build a bed I would both tenon and bolt the long members.
I'm considering taking ours apart and cutting mortises and gluing a
false tenon into the long member before redrilling it for the bolts. its
either that or build a new one ;-)
School of Life Sciences, University of Dundee, Scotland
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.