Detrich is thin, so make sure that your utilities can fit in a thin platform. If you need 6" duct work or need to run a 3" toilet pipe very far, it can be tight in an 8" steel joist. Also, be sure to exceed code minimum. Most people don't like the bouncy feeling that code can allow. Depending on your area, going to 12" oc, same depth, might only be 4 or 5 more joists and make a huge difference in the sturdiness of the floor.
Mark |