This is a very heavy wood and compressed wood platform or foundation..
SIZE: overall: 31"l x 29.5"w x 4.5" h
(add"l size info: there are 3 long pieces under wood top that are compressed wood, each one is sized as follows: 29 5" x 3.5" w by 4" h. The wood on the bottom of each is 1/2" thick.
Not sure how much weight it can handle but it's very sturdy and heavy duty.
Good for storage to raise something off the floor. For example water canister, paint, mini fridge, etc. Not sure I'd put out where rain could get to it though.