You might not need 16 of these to make up the floor space of a queen size bed, double check your measurements to make sure. Otherwise as long as you understand the reclaimed nature of these pallets (we cannot verify how they were used prior) then they make a great bed platform!
Hello, the boards are very wide apart so I do not think it will be strong enough for a bed frame. I am not sure, since I am not A professional
I wouldn't recommend it, this is not made of new boards, it's recycled pallets and could be compromised.
They may have rough spots on the boards that may snag or rip any mattress placed on them. I'd treat them because these aren't made of new boards, they're recycled.
In my opinion, I think that the pallets could be covered with plywood for standing on them. I purchased them to place under shelving located in my basement with the intention of preventing dampness. The pallets are fairly sturdy so they should be able to hold weight, but not sure of how much weight. Hope this helps.
If you want the pallets to all touch each other you're going to need twelve to create a 4 x 3 grid. If you can space them a bit you could use six.
About 10 to 15 pounds each.
No. Not strong enough.
I wouldn't because these are reclaimed wood you have no idea of the structural integrity or safe load bearing weight.
I would hesitate to use indoors because you don't know if they've been sprayed with a chemical to deter bugs--might give you a headache if you're sleeping in such close proximity to the pallet--I'd be concerned the smell from the chemical may soak into the mattress.