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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 6633
Experience:  Structural Engineer
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I have a room that is 17 ft wide with ceiling rafters 20 foot

Customer Question

I have a room that is 17 ft wide with ceiling rafters 20 foot wide, and my ceiling in sagging in the middle. What is the beat way to fix it?
JA: OK. Tell me a bit more about what's going on so we can help you best.
Customer: The 20 ft span of the room is framed with 2x4s and is dipping in the middle, I was thinking abot putting 2 2x10 across the 17 foot span cutting the 2x4 in the middle and bracketing them to the 2x10
JA: Is there anything else the Structural Engineer should be aware of?
Customer: No
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Structural Engineer about your situation and then connect you two.
Submitted: 5 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 5 months ago.
Hello. I can help
Expert:  StructuralEng replied 5 months ago.
Hello. You will need something more than a single 2x10. Is this an attic only?
Customer: replied 5 months ago.
Yes just an attic, and there is a wall on either side of the room. I was thinking about building 2 temp walls and putting 2 2x10 s across the room cutting the rafters and nailing them to the 2x10
Expert:  StructuralEng replied 5 months ago.
I would not cut the ceiling joists. They are acting as ties to keep the walls from pushing out from the thrust of the rafters.
Expert:  StructuralEng replied 5 months ago.
You really need a triple 2x12 for that.

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