Could get two C22 cabs and stick them together. That's just about the perfect footprint for a 1k light. You'd need a good fan for active exhaust, but it's doable, since others have already done it. I think BlueBear or TheGreenFog has a double-C22. The first time I saw some pics of a double-C22, it was on overgrow.com, guy called it The Monolith.

Another alternative is a HydroHut Original. They're 52" x 52" x 7 feet, also just about perfect for a 1k light. I have one of those with a 1k light in it myself, although I need to get a beefier fan if I want to run it anytime except winter.
jamstigator Reviewed by jamstigator on . 1000w Cabinet? Hola kiddies. Im pretty new to this whole scene so kinda bear with me. I just bought a c13 Grow cabinet from everyones favorite multipurpose store. (heres a link tellin about the cab::: http://www.millspride.com/assembleinstall/closet_specbook/wardrobe.htm ) Any who, I found a new HPS light + ballast for almost nothing. When I heard it was available, i wasn't sure the wattage, thats when I bought the c-13 in antisipation. Now that I have the light, I'm realizing thats its 1000w, and Rating: 5