There have been actually quite a few discussions regarding this topic in the past few months.
I suggest searching the forum archives and reading a few.
That being said there are a number of important factors icluding;
1) Cage location, this will ultimatly determine the size cage. With Burmese bigger is better. I suggest a two part cage with dimensions similar to what you had in mind. However I wouldn't want such a deep cage do to the fact you will have to get in it for cleaning.
3' is not that bad but something around 30" is about arms length. For aditional floor space you may consider adding a shelf
If you made two cages 5' or 6' by 3' tall 30" wide and bolted the two together it would be a great cage for an Adult Burm. You may only need one part now but in a few months you will need the other. Burms grow fast!
2)The temperature of the room is very important. How much energy required will fall on the temp of the room its in. RHP probally work best but if the cage is uninsulated it will take a lot of energy to heat.
3)Finally asthetics(sp), is the look important or minimal. Weight can also be considered a factor but less likely with a Burmese.
Again Good Luck
My 2 Cents
Jeremy
>>I have a 6' albino burm who has outgrown her 50 gal aquarium that I have been keeping her in. I have some spare time over the summer so I decided to save a little money and build a new cage for her. I'm thinking around 6'X 3'X 3' although those are subject to change. I was thinking a fairly simple 2X4 and plywood design with sliding doors on the front. Any suggestions/blue prints that have worked well for you? I appreciate all help. Thanks in advance
-----
Jeremy
"I am become death, the destroyer of worlds" July 16, 1945 Robert Oppenheimer
1.1 Double Het "Sharp" Snow RTB's
0.1 Albino RTB -Coming Soon-
1.1 Hypomelenistic RTB's
0.2 Pastel Hypo RTB's -Coming Soon-
2.0 Double Het Stripe Albino RTB's
0.1 Suriname RTB
0.1 Anerthrystic RTB
1.0 Ball Python
1.1 Rhinoceros Iguana's
1.0 Green Iguana
1.1 Cream Golden Retrieviers
1.0 Pomeriaian
0.3 Catus Terribilis
0.1 Spouse
0.0.1 Youth -coming soon-