I've accidentally gotten involved in a modular building of a small shed, and most of it is already done. But there's still a small sleeping loft left to do. The manufacturer doesn't provide much info, so you have to guess a bit.
The sleeping loft will be 4000*1000mm.
And the thickest wooden beams included are 45*120.
Is it sufficient to just attach on the short sides, or do you need some form of support in the middle?
Mostly small people will be sleeping on this little loft..