Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: What is the maximum height of an item that will fit on the interior shelf?
Document: We just purchased a 50" flatscreen and needed something to support it. I found this simple TV stand at Walmart and was pleasantly surprised to find it for $10 less on Amazon, with free shipping. It came on time and my husband put it together pretty easily. I was concerned that the bars on the middle would prevent me from putting stereo components on, but my A/V receiver and other assorted components fit just fine on the shelf.
I thought this item was wooden. It is ok, I would of preferred other tables but due to the shipping challenges from other produducts I was forced to but this one.
We put the cable box and the DVD player side by side on the lower shelf, and everything looks great.
Then, I discovered that in order to assemble the bottom shelf, you need 2 people. The shelf has to be help UP against the bracket and screwed from the bottom. Honestly, at this point I'm about ready to give up assembling. If this wasn't so cumbersome to package and send back, I would.
This is a decent piece of furniture, especially for the low price. It was fairly easy to put together by myself which took about an hour. All of the parts were in the box and the directions were easy to follow. There were some pieces that didn't fit together perfectly but as I got close to being done I was able to use some pressure to move the metal just enough to make it work.
(9-13-12) When I first started putting this together, I thought it was a breeze. I was excited about how sturdy this shelf seemed, how heavy the materials were ... But I shortly discovered, it was not a breeze to assemble at all. First, one of the legs of the table was bent slightly so that the bracket would not lay flush against the shelf.
Like most build-it-yourself furniture, plan for more time than you thought you would need. You do need a second pair of hands to install the bottom shelf. Once constructed, it is sturdy and easily accommodates our 60 inch tv and all associated peripherals. Shelves are pressed wood with a cheesy cover, but the price is worth what you get if it is used as a tv stand.
I needed an inexpensive tv stand, that looked nice. I was very pleasantly surprised when I opened the package, the materials were a good quality, and it went together with ease. The look of it is also something to be mentioned, it would seamlessly fit into just about any decor, and could also be converted into a coffee table. Overall 5 stars, would recommend to anyone.
It is nice for holding a good size flat panel tv . Top  has more of a plastic look rather than wood but it is very sturdy and good for the price. went together easy but putting the 2nd shelf on is a little tricky if you are alone but I was able to manage it . All parts were well marked  just remember that the corners use different screws. Also it seemed a little smaller than what imagined and how it appeared in the photo .
I hate the 5-star rating system. It gives the readers a false sense of the item being good; it's not, it's 60 out of 100, it barely passes.&#60;&#60;Nuvo 2-Tier Mocha&#62;&#62;** It's alot smaller than what you see in the screenshots. ** The paint is flat and dull, the screenshot shows that it has a slight gloss; don't be fooled. Although the table's style itself is fine.
Answer: Total area is 13 inches- so about 12 inches for any object with a bit of room.