framing specs for hot tub support


Old 09-09-04, 02:10 PM
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framing specs for hot tub support

I Have A Sunroom( Aprox. 10' X 15' ), It Was Built With A Sub Floor, One End Attached To A Brick House,the Other End Resting On Concrete Blocks. When I Jump Up And Down There Is Some Play In The Floor. I Would Like To Put A Hot Tub In The Corner, The Tub Will Weigh 2200 Lbs Full. What Is Required To Support The Tub.
What Is My Best Way To View The Joist Sizes And Span With The Least Amount Of Damage. I Cannot See The Joist From Outside Due To The Concrete Support Blocks Surrounding The Outside Walls.
I Believe The Floor Is Above Dirt.
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Old 09-10-04, 03:43 PM
Join Date: Aug 2004
Posts: 44
The house crawlspace probably attaches to the sunroom crawlspace (I assume the sunroom was not original construction). I'd get under the house and look for a passage through the house foundation where the sunroom joins the house. You'll be able to see the floor joists from the crawlspace.

As a wild guess though, for the size of room you've described, the floor joists are likely 2x6 on 16" centers (I'm assuming the span is across the 10' dimension). I don't have a span and load table in front of me, but the framing plan described would probably be sufficient to support a normal load on the floor (NOT a full hot tub).

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