will floor sag

[Wayne]

I own a 1997 southern hospitality manufactored home.With 3 qtr inch plywood floors.The floors are hardwood. It still sits on the metal frame, with concrete footers.I have purchased a gun safe which weighs 1200 lbs.,its going to be placed on an outside wall.Are we going to need to put extra support under the house somehow? If so with what?

[Pendragon]

Absoultely, you need to put some support where the safe will be. A floor jack on a 18" concrete pad would work. A floor jack is a jack with a pad on each end, joined by a screw type mechanism and is made specifically for supporting floors.

I would use a 4x4 cut to length to span several of the floor joists, put the jack pad in the middle.

[David Oxhandler]

How many sq feet will that weight be spread over?

[Roy T. Bonney]

Your set up manual addresses this issue. Because the weight is on the canitlever portion of the floor, it should be supported from the ground up with additional piering.