Over 20 Dojo's have built the Denver Dojo Floating Floor System!
Ask them how they like it?
"Ron Angus" <a.p.e.judo@sympatico.ca>
"Lucas" <lucas@sandiegojudo.com>
"Jeff" <jeffinocala@aol.com>
Link to the Foam Block Supplier: Tim Lang at Wisconsin Foam Inc.
Link to 4x8 OSB Spring layout drawing