hello, im new to this forum and this is my first post.....here goes.
Im going to be building a 60ftx30ft timber agricultural barn this year, and have a few questions related to the foundations. Im copying the design from a few barns ive seen, so carpentry wize, im sorted. Unlike most ive seen, i dont want to just dig a hole, put the post in it and back fill, as this will rot out and cause problems later down the line. Im going to get steel shoes made up so i can fix them to the bottom of the posts then bolt to the pad.
first question, how big a concrete footing should i have under the posts? 2ftwide x 3ft deep??
second q, Ive seen steel framed barns concreting in the threaded bar , using these waxed cones. I guess these give me more room for error as i can move them slightly? Where do i get them from? Anyone got any photos of the details? And an explanation of how to set them up? This is what im most confused about!
third, I was going to build up these footings up to finish level of the concrete pad, so the bolts of the shoes aren't burried in concrete. any reason not to do this? Ive read some people say the steel base plate needs to be under the finish concrete level. not sure why
fourth, ive read i need to use shims and washers under the steel plate. any idea why?
5th, what size bolts? m20?
6th, thickness of pad? i was gonna go for 6inch. we have a small(ish) 4wd tractor, and keep a few cows on it. nothing majorly heavy.
ok, i think thats all! thanks
any advice, big or small, most welcome. and photos too
Im going to be building a 60ftx30ft timber agricultural barn this year, and have a few questions related to the foundations. Im copying the design from a few barns ive seen, so carpentry wize, im sorted. Unlike most ive seen, i dont want to just dig a hole, put the post in it and back fill, as this will rot out and cause problems later down the line. Im going to get steel shoes made up so i can fix them to the bottom of the posts then bolt to the pad.
first question, how big a concrete footing should i have under the posts? 2ftwide x 3ft deep??
second q, Ive seen steel framed barns concreting in the threaded bar , using these waxed cones. I guess these give me more room for error as i can move them slightly? Where do i get them from? Anyone got any photos of the details? And an explanation of how to set them up? This is what im most confused about!
third, I was going to build up these footings up to finish level of the concrete pad, so the bolts of the shoes aren't burried in concrete. any reason not to do this? Ive read some people say the steel base plate needs to be under the finish concrete level. not sure why
fourth, ive read i need to use shims and washers under the steel plate. any idea why?
5th, what size bolts? m20?
6th, thickness of pad? i was gonna go for 6inch. we have a small(ish) 4wd tractor, and keep a few cows on it. nothing majorly heavy.
ok, i think thats all! thanks
any advice, big or small, most welcome. and photos too