Fuck it, let's get into it.
I don't really feel like the shop is my accomplishment to celebrate yet, honestly. We've just been cutting checks and the GC and all his subcontractors have been knocking it out of the park. They're slated to complete the building this coming week; all that really remains is to seal the slab, caulk a few seams, and finish some tin on the roof of the little transition hallway between the front (old) shop and the back (new) shop. Once they're out of here, I have to restore and hang my crane, build an office, run water lines back there, build another rotary phase converter, etc. So my work hasn't really begun yet, aside from sitting in meetings with the builder. I don't know how you white-collar guys do it; these meetings have been torturous.
Our family business is agriculture; we grow oyster and shiitake mushrooms and distribute other specialty mushrooms to wholesalers in the twin cities area, as well as ship dried mushrooms all over North America. We run three refrigerated trucks and have drivers in Minneapolis/St. Paul four days per week. I'm second generation and have a lot of mechanical skills that my father is lacking (he's the founder of the business,) so I have carved out a position where I build, maintain, and repair the farm's vehicles and equipment. That could be anything from rebuilding a Stihl chainsaw (after an employee runs straight 87-octane through it,) to engine-swapping a Bobcat or a box truck, to cleaning boiler orifices, to fabricating a new squirrel-cage blower assembly for our oyster growing room, to galvanizing a Tacoma frame.
The front shop is 40x60 wood frame on a floating slab, built in 1990. My father built it for farm maintenance and as a contingency plan in case the agriculture business fell on hard times; he had this notion that he could rent the space to a mechanic. Not being a mechanic himself, some of the construction choices and amenities were a little screwy. It had two 12ft doors, so we couldn't fit a 12'6" box truck inside. It had a lift, but it was a four-post with no center jacks so it was really only good for oil changes and exhaust repairs. It had an air compressor and piping around the perimeter, but it was all perfectly horizontal black iron pipe with no dryer or drains.
I've been taking an active role in upgrading the shop for about ten years now: We blew out the top of the south overhead door framing and raised it by a foot, then replaced one 24" panel with two 18" panels, so it's now 13' tall and I can fit a box truck inside. I found a used 7k Rotary 2-post lift and installed it in front of the 4-post, at an angle that allows a box truck to clear it when it's pulled into the south bay. I coordinated with a directional boring company who came out and drilled a water line 10ft underground from another building, then I plumbed the shop and installed a sink and hose reel. I installed a 10hp rotary phase converter and ran EMT to a bunch of outlets around the shop. I retrofitted the shop (and the rest of the farm) to LED lighting. I rebuilt the whole air system in the shop. Etc, etc, etc.
During this same time, I had begun collecting a bunch of machines and equipment. I'm kind of a slave to this family business, and since I've forfeited the opportunity to go out and forge my own path in life, I felt like I needed to invest in my passion (metalworking and fab) to keep myself sane (and help me better perform the job I had created for myself.) Unfortunately, there's only so much room inside a 40x60 shop and it was already pretty tight before I started filling it with mills, a lathe, radial drill, press brake, bandsaws, pedestal grinders, tube bender, plasma cutters and welders, paint shakers, etc. I have a big vibratory tumbler, slip roll, and a 5x10 plasma table sitting in cold storage in the back of the pole barn currently, because the shop is completely filled with shit.
For the last couple of years, I'd have to spend 20-30 minutes shuffling machines around with my forklift if I needed to get a truck inside. Not really a big deal for a quick oil change & chassis lube on a refrigerated truck, but I have some longer-term big truck projects that were really clogging up the shop. Upfitting a class-7 truck with a dump body, for example. I'm always running around the farm trying to stomp out fires, so if I had a spare hour or an afternoon I could devote to a big project, half of my time would be wasted just reconfiguring the shop before I could begin to work. We're in Minnesota, so working outdoors in the winter is pretty much off the table, and working on anything outdoors in the summer is miserable due to humidity, especially if it's a fab project with any bare steel.
Enter: big shop. We knew right from the beginning, not only was this filling the present need for a larger truck shop, but this building should to be seen as a future diversification strategy for the business. All the planning took place while we were already in the thick of the COVID-19 bullshit, and the early restaurant shutdowns really sent a panic through the foodservice industry. We came out of it alright, but it did highlight the fragility of our industry (given government interventions.) I want to be able to make a living doing fabrication or manufacturing out of this facility in the future, if need be. I work on big stuff and I generally work alone, so my criteria for the shop was essentially: lots of square footage, pretty high ceiling, and an overhead crane.
I found a good deal and purchased an old 6-ton underslung bridge crane with a 45 ft span, removed from Pittsburgh Steel in Wheeling, WV. Dragged that home and set it on dunnage. Now we had something to engineer a structure around.
I paced around in the mucky, wooded area behind the old shop and figured the terrain would allow for a building with a ~50x120 ft footprint. I drew a 50x120 ft rectangle in a rudimentary CAD program, drew some overhead doors openings in it, and fired off an email containing the PDF to a precast concrete building manufacturer, asking for a rough ballpark pricepoint. We've never built anything like this and had no idea if we could even afford precast. We knew we couldn't hang a bridge crane from a pole barn, and with steel prices skyrocketing during the pandemic, concrete seemed like an option worth exploring. We got an estimate and it seemed high, but feasible. I didn't know at the time, but my dad had apparently been dreaming for years about building a new growing house out of precast panels. The current oyster growing room is inside an old brick hog farrowing barn, and we've had some issues with mold and cracking brick over the years due to the extremely high humidity inside the barn. Given his interest, he was receptive to building a precast shop to familiarize ourselves with that mode of construction.
A friend of mine suggested I talk to his father, who's a senior project manager at a construction company that handles a lot of commercial jobs. I got in touch with him, he took my CAD drawing, and he came back with detailed engineering drawings and a quote for a finished building. We signed a contract, started having meeting after meeting after meeting, and now we have a shop that's pretty much exactly what I pulled out of my ass and sketched in CAD.
 This is the bridge crane the day I dragged it home (4/30/2020.) That's parked right where the new shop would go, prior to removing any trees or doing soil correction to remove the "highly plastic clay" and replace it with granular fill from our sand pit.
 This was March 9, 2021 after I had begun to cut down trees and clear brush in preparation for dirtwork. Off to the left, you can kind of see the horse riding arena my dad built for my mom right before their divorce. He slaved away for several weeks and I think she used it once. I was storing a bunch of trucks, trailers, and parts cars in there before construction began, and then I had to rip it all down and relocate my junkyard.
 Biting off more than I could chew on March 7, 2021. That brush pile burned for days.
 Excavator working on the great soil correction operation on July 20, 2021. Core samples indicated that we needed to remove almost 6 ft of topsoil and 'highly plastic clay' from the site and replace it with granular fill. Fortunately, the soil here was all mixed up by glaciers during prehistoric times, so we had a nice productive vein of sand under my firing range about 100 yards away. The excavator dug out the sand, then hauled all the clay and black dirt to the site where the sand had originated and he backfilled the hole. (You can see a Tacoma axle sitting in front of the shop in this photo.)
 The soil correction finished, August 4, 2021. The excavators compacted the backfill continually as they built up the site, passing an engineer's soil compaction testing throughout the process.
 After the compacted soil had rested for a couple weeks, trenches were excavated for the footings on August 14, 2021. Groundwater continued to be a concern, so they put a base layer of rock below the footings and we ran pumps continually. Later, we installed drain tile along the north and west walls of the building and the water level remains below the frost line.
 Footings being poured on August 19, 2021.
 Footings cured for over a month. Boom lifts appeared on September 25, 2021 and I got up there and snapped some photos. I got some cool panoramic photos, too, but the attachment thing won't let me upload them.
 First panels went up on September 28, 2021.
 The 300-ton Demag Absolute Unit (9/27/21.) The crane operator forbade me from working inside the old shop that week, because he was swinging the precast panels up and over the roof of the building. I had the purple Tacoma cab inside the pole barn, and I was working on stripping the body wiring harness and interior out of it. Really made me appreciate my air-conditioned shop.
 My beat up iPhone 6S was not exactly the paragon of image clarity.
 October 1st, all the walls were up, the inverted double-T roof panels were set in place, and the crane departed. I got a new iPhone, too, so the images got a bit crisper.
 October 9th, prior to roofing, caulking, backfill, slab, etc.
 October 17, drain plumbing roughed in for toilet, sinks, and trench drain. We're just going with holding tanks for now, rather than installing a mound system.
 This is the site of the transition link, which allows foot traffic between the old and new shops. A couple years ago, my mother converted her detached garage into a spa with an infinity pool (got that divorce money, I guess) so I went over to her place and removed a 10x7 garage door. When we were designing this shop, I remembered I had that door so I had them frame an opening that size for the transition hallway. This way I'll be able to secure the passage from the inside of the back shop. I can't drive my forklift through a 7ft door, but we also opted not to remove the low-overhead mezzanine inside the back of the existing shop.
 They poured a 6-inch slab on October 20th, and I tried to keep it wet for several days afterwards to increase the strength as it cured. The test samples are around 5700 psi.
 October 29th, more than a week passed and the subcontractors were able to drive their scissor lifts on the new slab. We had HVAC guys installing radiant heat and mini splits, electricians got my lights and outlets up, and the precast concrete builders finally finished caulking all the seams in the walls and roof panels. We had to use those expensive-ass roll-up doors because a paneled overhead door would interfere with my crane ways, which will hang from the double-T roof panels. If you look closely, you might be able to see the rectangular steel plates embedded into the end walls - that's where the crane ways will anchor to prevent swaying. We should have 16ft under the hook when the cable is fully retracted. For scale, those gray doors are 12Wx14H, and the white door on the end is 20Wx16H.
 First snowfall, November 13th. I didn't really photograph that little transition hallway, but you can see it there. Wood framed, tinned inside and out, nothing too special.
 Today (11/20/21.)
 Today (11/20/21.)
 I picked up two 20ft shipping containers on October 6th down at the railyard in Minneapolis. Forgot to take a photo after the second one was on there, it looked hilarious... two 20s on a 32ft trailer. 

 Here's kinda what I envision for the office I want to build inside the new shop. I suck at SketchUp, so I haven't figured out how to cut door and window openings yet. Half of the first-floor conex box will be a bathroom, with the other half being storage. Cantilevered rack faces toward the middle of the shop, so I can easily pick material with the crane. The top will be my office, and the area under the overhang can accommodate six Vidmar cabinets for small parts. The deck outside the office would be pretty pimp if it had a railing, a picnic table, and a pergola with some edison bulbs. I'll probably place all my machines in the area around the office, and try to keep the south end of the shop open (between all the overhead doors.) I don't want to anchor anything in that end of the shop, and I plan on getting a set of column lifts rather than anchoring a big 4-post or 2-post lift to the slab.
Anyway... like I said, I'll probably throw some more photos up here once the crane restoration and office build get underway.
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