MH Construction

[Harry]

I'm looking at 90's vintage MHs and wonder if all of them are constructed out of 2x4 or better methods. I was surprised to see some older homes built in the 70/80's (?) with 1x3s in the walls and roof trusses...

Is there a referece guide anywhere on which manufacturers use plywood as opposed to partical board and so on?

Thanks.

[Mac]

Anything after (late?) 1976 is built to HUD standards, and will have at least 2X4 walls. As to plywood floors, they're generally optional. Try pulling up a heating vent cover to see the subfloor material (if the vents are in the floor). Otherwise, look up from underneath. You may be able to get a good view by removing a plumbing access plate.