I built this sandbox indoors and used it as a Toddler ball bit. Putting it together was simple, however the wood was very brittle and ends knocked off very easily. It was very gently used, but parts still broke off as children used it. Enough ends broke off that I had to take it apart as it got too unstable for safety.  I can't imagine this lasting long outdoors.  Not sure if the set I got was a lemon, but overall, not impressed with the lifespan of this product.