This is a homemade dog box made of insulated aluminum doors. Probably not the best summer or hot weather box. Two holes, each hole is 42inches deep, 22 inches tall and I believe 17 inches wide, I can double check if anyone needs me to. It was my grandfathers box and he carried bird dogs in it and I use to carry 4 rabbit beagles with plenty of room. Foundation vents are used on the side to vent. I had a beagle that was bad about pushing his head out so they are a little bent up but still useable and still open and close. I wouldn't call it a heavy box, I load/unload it myself in my truck. $100 firm, and the box is in Bigelow. I can take all the pictures you want, just let me know if you want anything specific.