J Paul mentioned carpets and fire codes. In case anyone missed that, I'd like to reinforce the importance of checking on that.
In my last location, I had new commercial carpeting installed on the floors and a contrasting version of the same stuff installed on the walls. I wasn't thinking of hanging samples, though it worked great for that. I like the sound insulation and the fact that pictures hang straight and can be moved around without leaving nail holes.
Less than 24 hours before the reopening, a little army of city inspectors marched in and announced that the carpeting on the walls would have to go, because of fire codes. (They also told me I couldn't have a saw in my back room because there was a fire exit back there. The fear, I suppose, is that, in the course of escaping a building fire, someone might hotwire the saw, start it up, and cut off a few digits.)
My landlord, an attorney who loves to fight city hall, intervened and I opened on schedule. I was able to get certification from the carpet installers to verify its fire-retardant properties - an option the inspectors failed to mention.
Check it out ahead of time. Inspectors can be arbitrary and ruthless in the interest of public safety.
BTW, I had a much bigger showroom in that location and an impressive selection of Inline Ovals.