A: Hello Josh, the internal dimensions are 29 3/4" wide x 28 1/2" high x 10 3/4" deep.
A: If you will attach a piece of plywood first to the wall, then you can place them anywhere and not depend on the studs. I have 4 of these together and it makes a pleasant installation. I used 1/4 inch lags and got whole shooting match from Home Depot.
A: Hello Jane, the 30" wall cabinet has round holes in the top and bottom back panels are spaced 8" (20.32 cm) apart to allow you to mount the wall cabinet to your garage wall studs.
A: Yes you can remove the shelves. I don’t think I would store anything of great value in the cabinet. It does have a Lock but the metal the cabinet and doors are not heavy duty gauge and could be defeated quite easily. I also don’t recall seeing any fire rating in the paper work so that could be an issue for some people as well. This is basically a nice looking cabinet for the average homeowner to keep tools or household supplies in. The dimensions should be listed on the website as to how much space is available in the cabinet.
A: Yes, the shelves are removable. Don’t have any guns so I can’t answer that question.
A: Hello Roger, yes the shelves are removeable.
A: The shelves can be removed or adjusted and therefore can be used to store arms less than the 30" dimension vertically or horizontally or longer on diagonal. I don't think the strength will be significantly diminished by their removal and with good mounting to studs (I used better lag screws with washers in the rails) will hold more than the rated loading
A: Shelves are removable. They probably will fit, cabinet meant for garage supplies. Not recommend for firearms, put firearms in a secure safe.
A: It’s my experience with these cabinets that the shiny finish is usually on the non- premier cabinets. The best way to tell is to check sticker in the cabinet and make sure it has the lock on the left door. The last premier cabinet I bought was a little shinier than my older ones, but I assume that is because it is newer. As for the tag not being the same as the originals, it could be due to part shortages. I’ve been waiting for over six months for a replacement door for one of my units and still have not heard anything about when it will be available to ship. Another thing to consider in you situation might be that someone may have switched cabinets and placed a non-premier one in the box you bought. Non-premier require assembling where as premier should be ready to go right out of the box. The metal is more stout on the premier cabinets if that helps?