I don’t know specifically, but it’s very sturdy and I believe it would hold a lot of weight. I had pretty large clay pots, some filled with soil, on the shelves most of the summer and there was no problem.
It isn’t high quality wood. It just looks old after 2 years. The first season there was black mold on it so they sent me another top but they didn’t send the crown moldings that go around the edge. We didn’t change the top because we would have destroyed it. The corners of the crown moldings are starting to rot. This is not made from good quality wood like teak. The customer service sucks too. I didn’t treat it with any stains so maybe that is why it is looking old and worn but I wouldn’t buy it again. I would invest in a real teak potting bench.
I got mine within 5 days of ordering.
It appears to be all cedar....we gave it an oil based treatment and all wood responded the same...overall, we are pleased...