HVAC Garage Return Box Sag

Old 05-09-17, 04:31 PM
Thread Starter
Join Date: Jan 2008
Location: USA
Posts: 20
Upvotes: 0
Received 0 Upvotes on 0 Posts
HVAC Garage Return Box Sag

I'm installing a new air handler in a garage that has a slightly sagging return box under the existing upflow air handler. It's sagged about 3/4" and it's bad enough that you cannot get a filter in or out of the unit.

What I'm thinking of doing to correct this is after I get the old air handler removed, putting down some floor leveler and then cutting a piece of 5/8" ply to go under the new air handler. Cut a new return opening in the ply to fit the new handler, silicone caulk and tin flange the opening and it should be good.

Anybody else run into this issue?

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: