Question about a shed

[TheGorf]

Hey it's close to my shop! Does that count? I couldn't think of anywhere else to ask this question so I hope this is kosher.

I'm building an 12x14 shed to get all the yard stuff and lumber and **** out of my shop that doesn't really need to be there. I've got it all designed. But what I want is on the gable end of the roof, i want to extend the roof out about 6 feet for just undercover space out from the shed and just run a couple extra trusses out over it. Seems easy... How is the best way to do that? I'm basing a lot of my plans off this design but minus the side door.

My thought was instead of running a single 2x4 for the double top plate, to run a 4x4 and just extend it out the front and support the hanging end with another 4x4 that runs down to a pier on the ground. Like this:

But that makes for basically a triple top plate.

Alternatively I thought about just butting a 2x4 up to the gable end wall with simpson hangers and letting the roof sheathing tie it all together.

THoughts?

 

[Stuart in MN]

To get Imgur pictures to show up here, you need to change the 'https' in the address to 'http':

 

[MushCreek]

Location? If you're in FL, we need to worry about uplift in a hurricane. If you're in Buffalo, we need to worry about 4' of snow on it.

You need to support the area between the main shed and the posts. There's a reason why walls have 2x4's on 16" centers. If they're 24" centers, the roof framing must lie directly over a stud. So the 6' distance you're proposing is essentially unsupported. I would think that at a minimum you would want a double 2x6 (on edge), and possible more. The other solution would be more support posts.

 

[CraigStu]

Thinking of snow load like mushcreek says are 2x6s available in 20 ft length? If so get rid of the combination 2x4 and 4x4 and do double 2x6 (on edge) the entire 20 ft? If not available, you could make one from shorter 2x6s glued and screwed together so that the joints are staggered.

 

[mike93lx]

4x4's are not used in that orientation because they just aren't very strong. a pair of sistered 2x4's would be better.

will this be inspected? are plans required?

I would probably use a double 2x8 for the beam out to a 4x4 or 6x6 post. adjust the size of the gable end and overhang trusses to accommodate the added height of the beam. but i live in new england, so snow is a concern.

 

[readhead]

There is no reason to run the 4x4 the length of the wall. Since you are supporting one end on the post the other end can be supported on the wall. The other more important question is the size of the beam. Since there is no location given we can’t speak to that. As mentioned, wind and roof load need to be considered. I can’t think of any situation where a 4x4 could be used for that span.

 

[laser3kw]

If that is the 14 foot span, I doubt you will find a 14 foot anything the is real straight. As others said, sister up 2 x 4 or 2x6 will provide excellent strength. Don't forget a good exterior rated glue between the pieces.

 

[burleyfarm]

https://www.awc.org/codes-standards/calculators-software/spancalc

Use this to help make your decision.


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