attic trusses on a pole building?

[havi]

Hi all, I'm looking at putting up a 36Wx60L poleshed with 14 ft walls. I would like to add an upstairs area using attic trusses. My location would likely require 16 on centers for snow load. I'm just curious if anyone has used attic trusses on a poleshed? Can't say I've ever seen it done in person.

some investigation: http://www.garagejournal.com/forum/showthread.php?t=29922 this thread has similar questions.

I should add I plan to go 8 ft between posts, two 10x10 doors on one 36' end, and a 7x7 door on the long side at the back corner. This is to get the shell up and dried in by contractors. Afterward, I plan to install 2x6's between 8' posts to hold insulation and inner wall coverings.

 

[Justanoldguy]

https://www.google.co.nz/search?q=a...v9jNAhXGj5QKHXQPAboQ_AUICCgB&biw=1745&bih=861

 

[havi]

Lol, I did that, too. I guess I was looking more for specifics.

 

[jackson1701]

I built mine last year. My neighbor is having his built right now. We are both on 2' centers. The spacing will depend on your local building codes. get a set of plans that you like and turn them in with your permit. Your inspector will make any changes that are needed for your area. My neighbor is building a 40x60 and had to upgrade to engineered top beams that hold the load of the truss. I was able to use 2x12 for mine (30x60). Please make sure that you go with the attic truss (usually has a 2x10 or 2x12 bottom runner). I have seen folks put a floor on non attic roof truss (usually has a 2x4 or 2x6 bottom runner) and they soon fail as they are not designed to hold a load.

 

[havi]

Thanks, good to know!

 

[John in OH]

Off the top of my head, I don't see any problem with the concept.

However, is your pole barn going to be an "engineered" package or are you just winging the design yourself? I ask this not to be critical, as such a building can be easily designed by anyone with common sense, but when you desire to so something unusual, such as attic trusses, you can get on some shaky ground. The spacing of the trusses, the size of the bottom cords, the roof snow and wind loading, and the desired floor load capacity all need to be considered to assure you have a safe and sturdy building.

If you are buying a pole barn "package", that vendor should be able to do the necessary calcs and provided a complete package that will satisfy a county building inspector. If you aren't buying a package, then take all your questions to the company that will be suppling your attic trusses and they can provide stamped drawings of your specific truss design.

Sure hope you aren't planning to design and fab the trusses yourself. You'll end up spending more in time, labor, and material than it will cost to buy properly designed and built attic trusses and you may end with a weaker structure. They really aren't that expensive.

 

[havi]

Package will be "engineered by a contractor", but the finish will be done by myself.