wood cage and flexwatt

Hello I am going to build a cage rack system made from wood and the substrate will be eco dirt. My Question is about flex Watt. I'm curious if anyone has any suggestions on how much to use and how wide should I get. The cage will be 2 foot by 3 to 4 feet in length. As I have never worked with flex Watt before any suggestions or help would be appreciated. Thanks

i would suggest a RHP for a wood cage over flexwatt.

but if not, general rule of thumb is 1/3 of the floor area of the cage.

I use 2 ft of 11in Flexwatt for my 4x2 ft cages.