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sparky30_06
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# Posted: 22 Oct 2019 07:29am
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Going to build a 12' lean to on the front of my hunting shack. It will be a place to hang out under and also keep the buggy out of the weather too.
The question is do I set the rafters ontop of the ledger board or use joist hangers. decisions decisions
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Brettny
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# Posted: 22 Oct 2019 08:06am
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How is the ledger board attached? What do you plan for siding?
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sparky30_06
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# Posted: 22 Oct 2019 09:34am
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Quoting: Brettny How is the ledger board attached? What do you plan for siding?
ledger board will be lag bolted into the existing studs. It will be a roof only structure.
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Brettny
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# Posted: 22 Oct 2019 10:40am
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Use a structual screw like GRK or something of the sort to hold it on. It not having sheer strength in the sides means that your ledger to roof rafter joint need to be very strong. Putting the ledger under the rafter would not be best.
Also adding some angle brases to the posts will go a long way in keeping the structure from racking. Notching rhe vertical posts into the rafter beam and notching the angle brases makes for a more ridgid structure.
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sparky30_06
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# Posted: 22 Oct 2019 12:01pm
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The posts will have 45 kickers towards the top to help with bracing and the end walls will have a horizontal stringer going back to the building also. One good thing is I don't have to worry about snow load in South Texas
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Brettny
Member
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# Posted: 22 Oct 2019 12:42pm
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Hangers shouldnt be needed then but if your building to a code ask the inspector.
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sparky30_06
Member
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# Posted: 22 Oct 2019 01:42pm
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codes? we don't need no stinking codes!!! LOL
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sparky30_06
Member
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# Posted: 22 Oct 2019 02:12pm
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here's is what i'm thinking
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Brettny
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# Posted: 23 Oct 2019 07:37am
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That looks good but i would laminate the top beam together. Having them appart like that dosnt make the other stronger. Your roof rafters also only hit one of the beams if you do it like you show.
Laminate them, through bolt or screw them together and use construction adhesive. Then notch them into the vertical posts. This way your hardware isnt holding the beam up on the 6x6.
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sparky30_06
Member
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# Posted: 23 Oct 2019 12:50pm
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Brettny
Good point.
would it matter if the notch was to the inside or the outside?
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NorthRick
Member
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# Posted: 23 Oct 2019 03:51pm
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Quoting: sparky30_06 One good thing is I don't have to worry about snow load in South Texas
Yeah, but don't you guys get hurricanes and tornadoes?
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Brettny
Member
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# Posted: 23 Oct 2019 08:27pm
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I would favor the beam to the outside. This way if you ever want to enclose it it would be flater
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sparky30_06
Member
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# Posted: 24 Oct 2019 10:08am
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Quoting: NorthRick Yeah, but don't you guys get hurricanes and tornadoes?
too far inland for hurricanes, we could see a tornado, but at that point everything will be gone. The building is set not anchored to the ground.
But something to think about.
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sparky30_06
Member
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# Posted: 24 Oct 2019 10:12am
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Brettny
I might have some steel coming to build the posts and maybe even the header across the front, so changes coming.
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Brettny
Member
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# Posted: 24 Oct 2019 01:12pm
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I have never built a structure like that out of metal but metal is far superior for something like this. You have the ability to weld on site?
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sparky30_06
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# Posted: 24 Oct 2019 03:55pm
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I've got portable engine driven welder that I can run stick or also have a wire feeder that I can run off it too.
So that might be my ticket and be able to span the entire front without a center post
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sparky30_06
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# Posted: 25 Oct 2019 11:57am
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So the plan now is to use 4" x 1/4" square tubing as the two outside post and a piece of C6 x 8.25 as a header between the posts to span 20'. Then use 12' long 2x6's as roof rafters then R panel on top of that.
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Brettny
Member
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# Posted: 25 Oct 2019 12:23pm
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So the header is going to be like a 2x6in piece of C channel? That dosnt seam like enough.
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sparky30_06
Member
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# Posted: 27 Oct 2019 07:09pm
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Talked to an engineer friend of mine and the C6 is strong enough to support the load but it may want to twist under load or deflect outwards, but not bow.
But I scored some 3" wide x 12" tall I beam from a house trailer, so that will be the header beam now
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