its 6 1/2 feet long, 4 feet wide and 4 feet tall
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its 6 1/2 feet long, 4 feet wide and 4 feet tall
How big is the Burm?
Your cages dimensions are nearly the same floor area sq.footage as my jumbo cages.24 sq ft. So yes, 6'x4' would work.
I would'nt go 4 ft high though.
No need to,large burms dont climb.Or dont climb that often. ( mine do) And to try and heat an enclosure that high, and to keep humidity up, is too much bother.
Go with more floor space, but for a burm...18" ia plenty high enough.
With the smallest dimension being four feet long - once you build that monster, you're not going to be able to move it through any doorway in a typical home. For that reason alone, I'd recommend a cage height of no more than 24 inches.
In addition, a four foot depth will require that you crawl inside the cage for routine maintenance. And the odds are high that your snake will deposit its wastes waaaaaaaay in the back. 
-Joan
If you make the cage too short but still give it some depth then you'll be exposing your face, neck, torso, and arms to a feeding response bite. This is now most accidents happen with large constrictors.
This is also determined by the height of the upper and lower lips.
Plan carefully!
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Current snakes:
0.2 Gonyosoma oxycephala - (Silver/Yellow)
3.3 Gonyosoma oxycephala - (Green)
2.1 Gonyosoma janseni - (Black)
3.3 Gonyosoma janseni - (Black & Tan)
>>With the smallest dimension being four feet long - once you build that monster, you're not going to be able to move it through any doorway in a typical home. For that reason alone, I'd recommend a cage height of no more than 24 inches.
>>
>>In addition, a four foot depth will require that you crawl inside the cage for routine maintenance. And the odds are high that your snake will deposit its wastes waaaaaaaay in the back.
>>
>>-Joan
>>
If you are building out of plywood or other sheet-good then I would suggest going with an 7 or 8L x 3D x 18-24"H as stated the 4ft depth is way to far to reach in both for convenience and safety. And the heighth will be more manageable for heat and humidity.
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Chris, my wife Mary
a dog, two cats, two birds, four snakes
oh and three kids
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