Here's my situation. I have a plan for a small main tractor barn with two add on side sheds. The main barn area is 18'x24'feet. Along side of the main there will be a 12'wide x 24' long add on shed on either side. The sheds will be full enclosed & have a shed roof from the main building to the exterior wall of the shed. So, inside the barn this gives me a nice open area of 24' x 42 feet in total space. Am I making sense so far.
Now, I have a set of plans for this which was drawn up by a licensed architect. His plan calls for 6"x6" posts set six feet apart. Except for the gable wall end openings where the posts are set to accommodate a 10' door opening. It makes sense so far.
Now I go & look up the 2012 IRC codes. Code R106 states that posts can span no greater than 8'feet apart. The code gives no other information for this restriction.
Here's the problem: On the main building, I would like to span 12' apart on the 24 foot dimension. This would let me build with only on center post on either side of the 24foot run. That gives me a nice open space for work & tractor moving. But since I see the code stops at 8 feet, I do not want to get into trouble with the inspector. I have a permit to build. I've already had my post footing inspection done & because there will be no CO issued, I need only one more inspection which will be framing when structure is in the dry.
I am anticipating I could have a code problem? I've asked all sorts of people out here, from architects, to professors at Clemson University. No one will give me a straight forward answer & the reason is probably one of liability. Yes I could build this thing on 8 foot spans & just drive more carefully.
My last resort. I hate to get involved with the building dept., but I sent an email to the Building Dept. mgr. & asked the span limitation question in general terms. I don't think I will get an answer, or I might be told to come in for a plan review, which I get to pay for & maybe get told I can't go over 8 feet.
If I can have a post & beam wall with a clear opening in it for a 10 foot wide slider door, then why can't I have a 12 foot span inside the building. Makes no sense at all. Sometimes these codes are written in a way that appear to be in conflict with the general thinking behind it. And lastly, if I do use a 12 foot span & the building fails the final framing inspection, does it really matter to me. I'm not asking for a CO even though my tractor will be sleeping in there. How does failing the inspection affect me or the status of my property? Has anyone any information on that situation.
If you care to comment, I'm listening. Now don't go poking fun at me here. I'm old, I'm tired & I want to get this barn up before I hit 90.