I finished to build a wooden floor on the only puppy we had with "dirt". Most of our best female are diggers I mean serious diggers and they are in the dog yard on plateform 356days a year, so since my 3 puppy pen with plateforms were already full with females and pups I need to make a wooden floor for Jewel, otherwise she may had dig a tunnel to China or something .

The frame is made of 2X4 rough wood and the floor is 1X8 rough wood also. it is strond sturdy and will last for many many years