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Discussion Starter #1
Hello all, Havent been here for a few years but am looking to put a lean-to against my metal carport for my tractor. Am making it 8' or 9' wide and 24' long (the length of my carport). I plan on 2x6s for the plates holding up the rafters bolted to 4' OC metal wall frame at the carport and at the other end 2x8s setting on 4x4s six feet apart. So my questions are how far apart for the 2X6 rafters and then 1x4 or 2x4 perlins and I am assuming they need to be every 2' and then am I ok with the sizes used for the rest of the framing? Oh, I am in nortern Pa where we do get some snow (or used to) and I am looking for a pretty mild pitch, like maybe a 3/12 as I dont have too much height to begin with as I want to keep it under my carport's overhang, which is 8 feet. I'm open to putting the roof on top of the carport roof (metal) for more height (and 10' rafters), and this would actually be my preference, but am unsure of the process to ensure a good water tight seal. I thank you all in advance for any thoughts on these questions.
 

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retired framer
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What is the roof structure of the garage, wood or ? Trusses or?

Posts are 6x6s, 4 with 2x10s for beams is more like we do but that depends on snow load. What is the pitch of the garage roof.
 

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I would recommend 6x6 posts instead of 4x4 . The roof truss boards I would go every 2 ' on the spacing . With 2x4 perlons that will be a strong structure . I am assuming you will go with a metal roof ? While the 3/12 pitch isn't ideal for snow I think you'll be ok . If you get a crazy snow storm once a year you may have to grab a snow rake/roof rake and pull some snow down to eliminate weight stress .
 

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retired painter
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What type of tractor? I have an enclosed carport [for lack of a better description] on the end of my barn for my Ford NAA. It's 10' wide and while my tractor is less than 6' wide once stuff got hung along the walls it's a tight fit.


My barn has a little less than a 3/12 pitch [metal roof] and snow has never been an issue - granted we don't get a lot and what we do get is generally gone within a few days.
 

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Discussion Starter #5
The garage is actually a metal carport. Good advice, will change the support posts to 6x6 and the the beams to 2x8. Better safe tahn sorry:) Thank you!
 

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Discussion Starter #6
I am doing the metal roof for the lean to. Also figured if I just remove the screws from the carport metal roof I can slide the lean to metal roof underneath the existing carport roof and that willl give me almost a foot of extra height. Will take your advice on removing real heavy snow. Thanks.
 

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Discussion Starter #7
My tractor is a Kubota L3830 backhoe. It too is about 6' wide. I am planning on putting nothing on the walls and can easily see how easy it would be to get to narrow. Thinking I will definitely go to 9' wide. Thanks for the insight.
 

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Discussion Starter #8
I'm not sure of the carport roof pitch...4/12? I have dug out about a foot beow the carport floor to the right of the carport and am going to slide the new roof of the lean to under the existing carport roof and continue the same pitch. I think that should be enough to get the backhoe under. I tried to get a pic of the carport on here but have'nt figured it out:-(
 

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retired framer
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I'm not sure of the carport roof pitch...4/12? I have dug out about a foot beow the carport floor to the right of the carport and am going to slide the new roof of the lean to under the existing carport roof and continue the same pitch. I think that should be enough to get the backhoe under. I tried to get a pic of the carport on here but have'nt figured it out:-(
Picture,, see below go advanced, and find manage attachments and jump the hoops from there.
 

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If you put poles on 6 foot centers and you have 2x6 rafters on 2 foot centers, you should have a rafter on top of each pole and two rafters between each pole. The span of the rafters is considerably more than the span of the beam between poles. I’m that case your beam can be doubled up 2x6s. It is acceptable to have two 2x6s supported by two 2x6s when the supporting span is less than the supported span.
 
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Discussion Starter #11
If you put poles on 6 foot centers and you have 2x6 rafters on 2 foot centers, you should have a rafter on top of each pole and two rafters between each pole. The span of the rafters is considerably more than the span of the beam between poles. I’m that case your beam can be doubled up 2x6s. It is acceptable to have two 2x6s supported by two 2x6s when the supporting span is less than the supported span.

Thank you and I believe I will do that at the "post" end.
 

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Discussion Starter #14
Btw...as you can see the whole structure is lopsided in this pic. I bought this used and the seller and his son set it up (for $50!) but unfortunately I did not have a level surface. I ended up tearing it mostly apart, leveling the surface and then reassembled it. My bad for not having a decent surface to set it on. Live and learn...sometimes the hard way.
 
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