I am setting up a home office at the moment in a 3m wide room and like the idea of having a desk "float" from one side of the room to the other. I am basing on this guide.
For my desk I'm going to buy a 3000mm x 720mm x 40mm beech kitchen worktop (so all one piece). I'll be using 2x4 to make a solid frame attached to the studs like this. But I really don't like the L-brackets.
I am hoping there is some way to support such a long, heavy piece of wood without using brackets. I was thinking of mounting a couple of metal support beams to the sides and running them all the way along, but I can't seem to find a sturdy thin bit of metal that would work. I've also seen the brackets that can be mounted along the studs inside the wall so the support would be the only thing visible, but I'd rather not cut holes in my wall for a weekend project!