Once the main panels are on, it's a sturdy little shed. I wouldn't recommend it for any valuables because even with a lock, I don't think it would be too difficult for a thief to break apart the panels. The frame is the hardest part to get lined up, one corner we just couldn't get a bolt in but we learned as we went and all the rest are fine. The panels were a breeze and I finished the roof and doors without my husband. Great value over all, best priced shed to hold our garden tools.