This is one of the most easiest Shelfs to put together. It is very durable, my son of 14 even laid down on one of the shelves after i had put it together, just to see if it would hold him and it did with no problems. This shelf holds a lot of stuff, its very attractive and can be used anywhere in the house or garage. Again very sturdy, very reliable, I love these shelves. Other shelves are made flimsy and cannot withhold a lot of things but these shelves can .I highly recommend these shelves for your heavy duty storage