\1 inch gap on the 2x4 flooring.
How is it working for you?we also use 2x4's with a 1 inch gap
do you have a pic of the complete pen wiyh a dog in it?http://www.gothicarchgreenhouses.com/benches_av_prices4.htm
this is where i purchased my flooring for my kennels. They are $11.49 a section. They are also inorganic which means bacteria and viruses can not thrive to live on it. Makes for healthier dogs. Hope this helps some of you out. I have had mine going on 3 months and love mine.