When I built mine it was from free stuff that I found or just had laying around. I really wanted a entertainment armoire to convert into a grow box, checked on craigslist daily for a free 1 or even 1 that was cheap in price. There was a lot to choose from but all where just to far for me to go and pick-up so i just built 1. The doors where the best find cause it looks like a piece of furniture which was the only way the wife would let me have one. I like my cabinet it works for my needs and space, most of all the price was rite. Things to keep in mind is how much you want to grow at a time, how big are the pots your going to use and how many, and what type of lights you plan to use. So say your going to use 4 foot T5 lights then you need to make the cabinet big enough to house them. Either way you go good luck with it