Goat
Retired for the grandkids
Used a couple of 8' 2x6s. Fastened a 5 1/2" piece of 1x2s on the bottom at the top of each one to keep them from sliding. I can easily pick up the front of the kart and roll it up or down. There is a large vacant parking lot at a closed factory nearby. I will be able to see how the dog handles on corners.