I have a cage design that results in a very sturdy cage that is 6 foot 6 wide, 3 foot 3 inches deep, and 18 inches high. It only requires two sheets of plywood to build these cages. I build them this way so that I can stack them 4 cages high and still be able to get into the uppermost cage without a ladder. I used to have these cage designs in a prewritten, form email that I would send to other herpers, but it got deleted from my "sent" file a couple months ago. I'll try to write the directions here very generally. Keep in mind I am going by memory, so if I forget something don't be upset with me,
. Also, I build mine with flop-down doors literally cut out of a plywood front with a sheet of plexi for a viewport. In these directions I use sliding glass because most people seem to prefer this.
Materials list:
2 sheets 3/4" plywood or melamine board.
1 box #6 1 1/2" gold screws.
2 1x3 boards
4 1x2 boards
1 tube waterproof silicone (gun type tube. buy the gun if you need it)
1 gallon water base paint or exterior wood laquer/poly base sealant
2 sheets 1/4" glass 16 1/2" by 40"
1 piece 1x2 hardware cloth (wire mesh)
First cut your plywood sheets at 78 inches.
Next, cut each 78" by 48" to 39" by 78". At this point you should have two 39x78 inch sheets, two 9x78 inch pieces, and two 18x48 inch pieces. The 39 by 78 inch sheets are your bottom and top, of course. The two 9 by 78 pieces will serve as your backing later, so set them aside.
Cut the two 18 by 48 inch pieces down to 38 1/4". Now you will have two 18 x 38 1/4 pieces that are the cage sides.
For the bottom of the cage, select the smoothest sheet to be your cage floor. This will help to make painting or sealing a lot easier later. One at a time, place your cage sides on the bottom sheet and screw the bottom into them. You won't need to pre drill any holes if you are using 3/4" plywood. Make sure the sides SET on the bottom. It won't work the other way. Also make sure that all the edges of plywood that will be the front of the cage are flush. The back part of the side panels will be inset 3/4" to allow for the back panels to overlap them later.
Once you have the sides attached to the bottom sheet, attach the two back panels. Place them together with the factory edges facing one another to make a perfect fit. These two pieces put together form the 18 by 78 you need for the back. Screw these into the sides and bottom. You can put brackets across the seam in the middle if you like, but I have never needed to, so you don't have to if you don't want to.
Next you will set the top sheet on the 3 sided box. The tops of all the wals should be flush and level. Screw this in. By the way, you only need a scew about every 10 or 12 inches for it to be more than adequately strong.
Now you have your primary box/cage. Next you will cut the two 1x3 boards to 78. Cut the remaining 18 inch boards down to 17 1/4. Use these boards to frame up the front opening of the cage. This is a buffer box for your sliding glass sheets and also a little bit of added strength since this front has no support wall. After you have screwed these boards in to make a window box you will cut the 1x2 boards to 76 1/2 inches. Screw two of these onto the bottom 1x3 window box board, approximately 5/8" appart. The glass panes will slide in between these two 1x2 boards, so they have to be over 1/2" appart. Do the same on the top window box board, but only install the inner-most 1x2. You'll want to put the last board in after the glass is inserted.
Now cut a good sized vent on one end of the cage. I usually go with 8 by 24 on these cages. Cover with 1/2 inch hardware cloth, staple firmly. (As a precaution against possible future escape you can screw a wood frame down over the edges of the wire)
Now vaccum and blow out any and all dust and debris from the inside of the cage. Run a thick bead of caulk/silicone around the inside joints. Personally, I only do the "Bucket area" on mine, which is about 6 inches up each corner, but if you want to do the entire cage that is up to you. But it isn't likely that a python will get wet messes up above 6 inches. Wait a day and paint. Again,.. I tape off and paint only the bucket area to save time and money, but you can paint the whole thing if you wish. But if you want to save a lot of time you can tape off the bottom 6 inches of the cage and paint that and it saves a lot of time. Keep in mind when caulking and painting to get all the joints of the wood that make up the window box, or glass doors support. You don't want this absorbing moisture and expanding.
When the paint or poly is dry place your glass sheets in and attach your last piece of wood. One last tip, you can get the glass a lot cheaper if you get used glass. It usually has such minute scratches that they are hard to find, but it's only 8 to 10 bucks a sheet.
For heating, like Carmichael said, get a radiant heat panel.
I hope this helps you and anyone else that took the time to read it. 
>>Alright i have a 6 foot male burmese python i was wondering if someone could help me with cage plans for my snake for life and what all materials to use for the whole thing because iam lost when i comes to that kind of stuff my dad is going to help me build the cage because he is very handy and i dont know were to start i would appreciate some info and plans As Soon As Possible
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>>Thanks,,
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>>Lee
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