|Project by Mainiac Matt||posted 05-23-2012 04:06 PM||16626 views||8 times favorited||22 comments|
I’ve had a couple guys ask about the pole barn I put up in the summer of 2009, so here are some screen shots of the project.
The design was inspired by a rendered pic from an online catalog of plans. I imported and traced the bit map into Auto CAD and scaled it to the published verticle height, then I used the rules of 2 point perspective to extrapolate some dimensions. The barn is ~30’ x 20’ with three 10’ bays and a 3’ overhang. the design was then altered significantly to incorporate a loft and for economy, as I can purchase industrial grade lumber at work for cost, but only 12’ boards were available. The only store bought lumber was the 6×6 PT posts. The 2×10x16’ rafters were salvaged from a bowling alley demo back in the ‘96 time frame and are structural joist grade Hemlock….. really old and really hard. I carted these around for years and had them stored under tarps on an old trailer.
The post are 6×6 PT. The post holes were dug with a borrowed tractor post hole auger impliment, and go down ~3’ where I hit ledge. The bottom third of the PT posts got a tripple coat of Cuprinal (which I salvaged from a dead program at work, after the boss decided he didn’t want it on site any more)... this is NASTY stuff… but it is the real, deal Copper, Chrome, Arsenic mix that they used to use in PT b4 the environmental laws banned it for all but commercial use. I poured sack crete pads at the bottom of each post hole, and drove four lag bolts standing ~4” proud into the posts at ~ 18” from the bottom. I back filled the post holes with washed stone and when I got to the lag bolts, I put in sack crete “buggers” around the bolts, and then finished back filling with washed stone. These post are not coming out!
As mentioned, the size and frame design was driven by economy, with all the 2×10 rafters coming out of 16’ boards and 2×10 floor joists for the loft coming out of 12’ boards. The sill plate on the back side is quadrupled up 2×10, with two boards lapped into the 6×6 PT post and capped off with a 2×10 plate. On the front side, I had 13 year olld 8×10 White Pine timbers left over from the construction of my house that were lap jointed into the tall front posts. and I used 3/4 Advantex to make torson box framed gusset plates on the front braces. I cut a tounge into the top of the center line 6×6 PT posts and trippled up 2×6s to make post extentions that go all the way up to the ridge. So the 2×12 ridge is “structural”.
The loft deck and wall sheathing was all done with 1×12 #3 grade pine boards. I intended to do board and batton walls and have all the batton stock ripped and stacked up in the loft…. but the barn looks good and is tight enough for my purposes, so three years later and I haven’t put up the battens yet.
The roof was sheathed with recycled crate panels that were miscut for a job at work… so the rafter spacing is very odd, to match the 1×4 cleats on the crate panels.
September was slipping by quickly and I was running into bad weather, so I paid a guy I know $1K to roof it with 35 yr Architectural Shingles, to match my house and his crew did the job in a day.
I was lucky to get an indian summer, in which time the entire crew (kids and wife) primed the exterior walls with tinted Baehr oil based primer, followed by two coats of Baehr water clean up, oil based opaque exterior stain…. I can’t say enough about this stain. The barn has now been through three winters and it looks brand new.
The doors went on in December and have 1×10 verticle boards with 1×6 ‘X’ cleats on the front and corrugated metal fasteners spaced every foot alont every board seam on the interior side (again, fasteners salvaged from old programs at work).
It was a fun project. A buddy who was out of work and needed some income worked with me as a helper. And aside for a small crew of volunteers on the day we set the posts (yes, I did throw my back out that day), the two of us built and sheathed the entire frame.
I estimate I put ~$9K into the project, with the cost of stumping, grading and gravel the largest bill…. followed by the roofing.
hope your enjoy the pics.
-- Pine is fine, but Oak's no joke!