Homemade Wheel chocks

[MaxAZ]

I made a set like that awhile back except I just used a piece of 3/8" all-thread instead of the pipe clamp. I secured one end of the all-thread to the bottom block by welding it to a piece of strapping and lag bolted the strap to the block to keep it from spinning when tightening the upper nut. I use a ratchet wrench to tighten it up and it will drag the wheels if I forget to take it off before driving away. I boondock mostly and have to raise one side plenty sometimes to level my trailer and this keeps it from rolling off the blocks. Works lots better than the store brands.