I'm thinking at least 6 feet tall, 8 or 10 would be better. You can always keep it smaller if you use a screen to keep them down. You can also go a little less tall if you use fluorescent lighting instead of HID (not recommended). Don't forget to plan on spending as much on venting as you do on lighting if you do HID. If you are only doing 2 plants 3x3' wide and deep should be plenty, or even 2x2'. If space and money were not an issue, I would build it bigger rather than smaller. I would also have a separate veg and bud area so I could harvest twice as often. 2 plants ever 4 months will not keep you supplied, especially if you are generous. (search sog and scrog) Don't forget a mother area and a cloning area so you can clone after your first harvest. Way easier and faster than seeds.

I sure wish money were not an issue in my life. Sigh...
Opie Yutts Reviewed by Opie Yutts on . New setup looking for large yields :baggy: Im about to start a new grow project in a spare bedroom in my house. Im going all out in this one, purchasing the Hydrohut deluxe all in one ultimate combo which comes with the following: All-In-One Ultimate growing package # 2 comes complete with: 1 - 4'x8' Hydrohut 1 - Sunlight Supply GroPro Dual 600w ballast 2 - Cool Tube reflectors 2 - 600w Hortilux bulbs 1 - 6" EcoPlus inline centrifugal fan (light exhaust) 3 - Dual flange kits (light exhaust) Rating: 5