I would agree with KenK. I have had multiple sub par experiences with all the "Big Box" stores when it comes to product and advice. Because of that, I would never trust them with something important like a "safe house". I continue to use them, but only for purchasing products I'm familiar with. Duct Tape, electrical wire, simple switches, adhesives, tools, paint for small projects, garden materials, etc. I wouldn't purchase any big project materials (even lumber) or service from any of them. But that's just me. I'm not saying the big shops don't have their place. On the contrary, they provide a huge one-stop shop with a solid line of product for general projects. When you're looking for something more specific or important... find a local provider and go direct.