I have storage under the double bed (plywood based), which is accessible from outside. The manufacturer placed 2 1x1 wooden supports in the center, I.e. just 2 little posts.
Of course they make actual storage a bit inconvenient as the are in the way when trying to slide a box in, etc.
I want to replace the center posts with a beam of 1x1in square or 1 in round hollow aluminum tubing and support it at each end.
The question(s):
1) would that be sufficiently strong or do I need to go bigger?
2) Square or round for maximum support?
Heinz