Kennel Size

I have two different kennel setups, one at my house and one at a seperate property. The one at my house is a on a slab with a r-panel roof. It is four priefert kennels that are 10x10 and I like them and they look good and I have a big yard to turn them out in so the dogs get a good bit of exercise. The kennels in the woods are built from a 8'x40' slab. There are 5 kennels covered in r-panel each is 8'x24' with a 8'x8' concrete area and 8'x16' dirt. The dogs seem to really prefer the larger kennels with the dirt. The dogs I have on all concrete just don't seem to move around as well and seem a little stove up to be honest with you. When I finally move and have all my dogs in one place I will have 10 kennels with a slab that is 30x50 with a gable roof and open all the way around. 5 kennels on each side that will be 10x20 half concrete and half dirt. I will still use the priefert kennels on the concrete but will use pipe and 2x4 panel for the fence in the dirt area. I actually have it all drawn up and ready to go....just need to move and find about 10K to make it happen :'(
MG