Long time readers (as well as most people with a lick of common sense) know knee braces are not a good thing. Besides taking up valuable interior space, they do more harm than good.
Reader TY from QUINTON has run into a dilemma regarding knee braces. He writes:
“I pulled a permit to self build a 34x48x16 pole barn. I left knee braces off the plans- after reading that knee braces force the posts outward under roof loading. The county added knee braces to my plan. Shall I simply add the knee braces or contest them?
Thanks – love reading your blog.”
Mike the Pole Barn Guru writes:
Thank you for being an avid reader of my blog. It is appreciated. It appears one thing I preach over and over is – never build a building not designed by a RDP (Registered Design Professional – architect or engineer). Even if you have read every one of my blog articles and have invested in a copy of the NFBA (National Frame Building Association) Post Frame Design Manual (https://www.hansenpolebuildings.com/2015/03/post-frame-building-3/) and designed according to it, you are going to miss something. Probably something crucial.
I looked in our database and you do not appear – this means you didn’t ever contact us for a price on your post frame building kit. Our kit would have included engineer sealed plans and full calculations so you wouldn’t be battling with your Building Department right now.
Reality is – knee braces are bad. Very bad. Read why here: https://www.hansenpolebuildings.com/2012/01/post-frame-construction-knee-braces/.
If you insist upon following your current path (do-it-yourself plans), then your Building Official has a right to add anything they want to your plans and you truly have no leg to stand upon. If they are going to force you into knee braces, then you had better be talking long and hard with your roof truss supplier to insure they are on board with these excess loads being forced into their trusses.
Or – you could do it right (and easy) way and dial (866)200-9657 and talk with a Hansen Pole Buildings’ Designer about your building. We can provide correct materials for your new post frame building at lower prices than you will ever be able to purchase them for – plus you will have engineer sealed plans and calculations enabling you to sail through permit processing.