Andy W posted:Thanks for the quick reply, GPTOM. I like the idea of 1x6. If I align it with the bottom of my 2x4 frame, it will extend 2" above the surface. Does that seem about right?
That should do the job, Andy. I have 1x4 frame with 1x6 sides. The surface materials take up some space so the sides actually only project up about 1.5". Still that's plenty to catch anything that derails and flops over.