Started working on a heated box for my new sulcata so she can spend more time outside this winter. I have a lot more to do but the frame and inner walls are together. After it is complete I believe I can heat it with a 80 watt Stanfield 1x3 ft heat pad, which came today, it measures 48x30x16 inches inside measurements,which will give her enough space to not set on the pad all the time.The pics are of the bottom being insulated, thats as far as I've gotten so far,I will cover what you see with pvc to keep moisture from seeping in off the ground.The bottom is insulated with a layer of 1 1/2 in thick, 8# fiber glass board against the floor and then a layer of 1 1/2 inch thick urethane board towards the ground, then sealed with FSK tape, to help even more to keep moisture out.also a couple pics taken today of our new family member, Sylvia.