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StructuralEng
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Category: Structural Engineering
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Experience:  Structural Engineer
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I have a 2x10 header supporting a 10 foot span floor (16

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I have a 2x10 header supporting a 10 foot span floor (16 inch center) cantilevered 16 inches. What is my maximum header span. There will be a storage room above. I am thinking about 6 feet with double jacks
JA: OK. Is there anything else important you think the Structural Engineer should know?
Customer: No
Hello
I can help
Is this a single 2x10 header?
Customer: replied 11 months ago.
Double with 1/2 inch ply between
When you say storage, do you mean attic storage?
Customer: replied 11 months ago.
The room proposed above is simple. 4 foot high wall to 7 feet at the other side of the 10 foot span
Customer: replied 11 months ago.
with a 5/8 ply floor and hatch
Is it supporting the roof, too?
Customer: replied 11 months ago.
Roof slopes from 7 feet to 4 feet in the room.
Customer: replied 11 months ago.
I suppose simple 2x6 roof over the 10 feet
Customer: replied 11 months ago.
I would do 2x4 rafter if possible
Customer: replied 11 months ago.
What is the city and state so I can look at snow loading?
Customer: replied 11 months ago.
Similar to attic. No ceiling, just rafter
Customer: replied 11 months ago.
Toronto Ontario
Moderate snow
Customer: replied 11 months ago.
Actually just north of Toronto - Richmond Hill
Customer: replied 11 months ago.
Still there?
Customer: replied 11 months ago.
Did I lose you?
I was running numbers
Customer: replied 11 months ago.
Ok
Assuming a 40 psf snow load, it's good for 6'-3" as Doug-fir no. 2
Customer: replied 11 months ago.
What about spruce?
Customer: replied 11 months ago.
I assume double jacks required also?
5'-9" and yes
Customer: replied 11 months ago.
Ok, thAts what I need. I thought I could atretch go 6 feet with the plywood between adding depth but I'll go with your numbers. I used to frame but it's been 30 years
Customer: replied 11 months ago.
I thought with the plywood between I could go longer but I'd rather be safe. I'll go with your numbers. I framed when I was young but it's been years
Customer: replied 11 months ago.
5'9" it is. One last thing. For the header under the end wall not cantilevered would the width be slightly higher?
6'-3"
Customer: replied 11 months ago.
72 inches is all I need.
Customer: replied 11 months ago.
Great. Thanks. That's all I need. Good night
Customer: replied 11 months ago.
Thanks. Good night
Customer: replied 11 months ago.
Ok, that's all for now. Thanks

No problem. I'm happy to help. Good luck with your project.

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