Carpenter Camping - Upgrades
Home-made Wheel Chocks
Many wonderful ideas can be published and found on the internet.  This happens to be one of them.  I found this via a thread in the RV.net forums.  The chocks really help to stabilize the trailer by preventing the wheels from rolling back and forth, and hence making it more stable inside.  This as very important as the kids run around the inside. 
I used 3/4" black pipe, pressure treated 4" x 4", and 3/4" pipe clamps.  The pipe clamps can be obtained cheaply from places such as Harbor Freight.  I got the wood and pipe from a big box store.  I cut the wood blocks at 30 degrees.  I drilled 1 1/4" holes through the wood block and attached the clamps to the blocks with sheet metal screws.
Here are a few links to examples of other chocks:
Pipe Clamp Chocks
Threaded Rod Chocks
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