Interior 51h x 21.5w x 25d. Also the Mini Brew 7G plastic conical fermenter with all stainless hardware needed. I've had the conical as well as 6 Cornelius kegs (not included) inside at the same time fermenting (total of around 35G). This has external temperature control (the probe goes into the thermoprobe (not attached in pic) into the conical) for both the freezer and one electrical heater blanket that can go around the conical or any of the cornies. The freezer was unused for a few years but cools as it should when I tried it a few days ago. I left the door slightly ajar for the entire time so it has a temporary memory of not closing completely. This is everything a brewer will need to control their ferment, and could be used for lagering or serving. More information to anyone interested. I got rid of the shelves that came with it but have plenty of plastic things that go into the holes for supporting the non-existent shelves. Understand the external dimensions of this for transport and use.