What kind of foam are yoga blocks made of?
March 19, 2021 2:19 PM   Subscribe

I want a large light weight platform.

I want a platform that is 30" x 30" and about 9" high. But I also want it to be very light weight. So wood is out. I'm thinking a very hard foam. But when I went to go find foam it was all only the soft kind. What kind of foam are yoga blocks made of? That seems like it would be perfect.
posted by fantasticness to Home & Garden (4 answers total) 1 user marked this as a favorite
The ones I've seen are high-density EVA.
posted by wreckingball at 2:29 PM on March 19, 2021 [1 favorite]

Cross-linked polyethylene foam is also similar.
posted by tchemgrrl at 2:43 PM on March 19, 2021

I'd consider making it from rigid polyurethane foam poured into a mold, or by building up sheets of foam board insulation from Home Depot. Maybe skin the top with plywood. For the polyurethane foam, check with a customer service rep to see what density would work with your application. And use a mold release agent.
posted by sebastienbailard at 8:34 PM on March 19, 2021

Closed cell foam like plastazote is what you are looking for, it comes in different densities and is very firm. A packing supply firm or a crate builder (you can find them at a lot of airports) will sell you it, cut to size.
posted by mani at 6:16 AM on March 20, 2021 [2 favorites]

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