I've made a few penny-leg tables and have had no problems as long as they're on carpet. I recently moved into a house with hardwood floors so I bought leg guards to protect the floors. I thought they would work well because the cleated legs are a bit larger, but the protectors still tend to slip off the legs. For now I'm saying it's a great idea, but it takes a little work to take the idea and make it fully work.
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