I bought this to display a piece of flooring that Metallica recorded an album on (wish I were kidding…lol, not really, it’s awesome). It’s a 12x12 piece, about a quarter inch thick. Not light. I used this to display the tile and the certificate. Holds it well using double sided tape. If I was going to pin something in here, that would probably have worked less well…so for those of you who pin things in shadow boxes, the back cardboard piece in this might not be what you need. The frame itself looks really good. Professional. Not cheap. It’s solid, sturdy, well-made. Worth the money. My only gripe is that the hanging mechanism (wire hanger connected to two screwed in loops) was not attached to the frame. The screws had to be drilled in and the wire attached…which can be a total pain if you don’t know how to set that wire up properly. Otherwise, excellent.So this took four tries. But I had to get a bigger frame. Then my 16x24 photo. With the measure to get from here I got 20x30. FitsNicely made. Like the multiple choices for color. Would buy this again.Perfect size and depth for my projectBe mindful that the product is low quality.You have to pull up all the tabs on the back, thin flimsy plastic in the front that pops out , it good quality.Well made, sturdy, exactly what I was looking for. Arrived well-packaged and protected. Perfect!