What happens before the crew arrives, what they do when they get there, and what your job is while a fabric building goes up on your property.
You've ordered the building. The kit has arrived. The gravel pad is prepped. And now there's a crew pulling onto your property with a telehandler on a flatbed and a trailer full of steel and fabric. The next two to five days will transform that pile of components into a standing building. Here's what actually happens during those days — from the site walk before the first bolt is turned to the final tensioning check before the crew pulls out.
The installation crew's job starts when they arrive. Your job starts weeks before that. The single biggest cause of installation delays isn't weather, equipment failure, or crew scheduling — it's site preparation that isn't finished when the crew shows up. A crew that arrives to find an incomplete foundation, an ungraded site, or a delivery access route that can't handle their equipment doesn't start working. They wait. And waiting costs everyone money.
Here's what needs to be done before the crew's truck turns onto your property.
The foundation must be complete and cured. If you're on a gravel pad, it needs to be graded, compacted to specification (95% modified Proctor density), and crowned for drainage. If you're on concrete footings, they need to have cured for a minimum of seven days — longer in cold weather. The anchoring points need to be in place and accessible. There is no "we'll finish the last section while they start" — the entire foundation system needs to be ready.
The site needs to be cleared. That means no equipment, no vehicles, no materials stored in the building footprint or the staging area around it. The crew needs clear space on all sides of the building footprint — typically 15 to 20 feet minimum — for equipment access, material staging, and safe work zones. If there's a fence, a power line, a tree, or a parked truck in that zone, it needs to move before the crew arrives.
Access needs to accommodate heavy equipment. A telehandler weighs 8,000 to 15,000 pounds depending on the model. A delivery truck with steel trusses needs room to turn around or pull through. If your access road has soft spots, narrow gates, low-hanging branches, or bridges with weight limits, those need to be addressed. A crew that can't get their equipment to the pad can't start the install.
The kit components should be delivered to the site several working days before the crew arrives, unloaded in a staging area adjacent to the building footprint, and stored safely. Trusses stacked flat, hardware organized, fabric rolls protected from ground moisture. When the crew arrives, they should be able to walk up to a staged, organized set of components — not a shipping container they need to spend half a day unpacking.
The first thing that happens isn't construction. It's a site walk. The crew lead walks the footprint, verifies the foundation dimensions against the building plans, checks that anchor points are correctly positioned, and confirms that the site is level within tolerance. Even a few centimetres of deviation across a 30-metre base rail can cause problems with frame alignment and fabric fit. If the foundation isn't right, this is the moment it gets caught — and the moment to fix it, not after the frame is up.
Once the site is verified, base rails go down. These are the steel channels that run the length of the building on both sides, providing the foundation interface for the truss columns. They're laid out with measuring tapes and string lines, checked for square using diagonal measurements, and secured to the foundation anchors. Getting the base rails perfectly parallel and square is the most important step in the entire installation — everything that follows depends on this alignment.
Then the trusses go up. A typical crew of four to six workers assembles trusses on the ground — connecting truss sections, installing gusset plates, torquing bolts — then lifts each completed truss into position using a telehandler or manlift. On a 40-by-60-foot building, a truss goes up roughly every 4 to 5 feet along the length. That's twelve to fifteen trusses. An experienced crew can assemble and erect two to three trusses per hour in good conditions, meaning the frame of a mid-sized building is standing by the end of the first day.
Purlins — the horizontal members that connect trusses and provide the mounting surface for the fabric — are installed as the trusses go up, tying each new truss to the one before it and progressively stabilizing the frame. By the end of day one, what was a gravel pad in the morning looks like a building skeleton.
Day two typically starts with end wall installation. End walls can be solid steel panels, fabric panels, or a combination with door openings. The end wall framing attaches to the last truss at each end of the building and provides the structural closure that turns an open frame into an enclosed building.
Once the end walls are framed, the fabric goes on. This is the operation that looks most dramatic from the outside — and it's the one that requires the most experience and the most cooperation with weather.
The fabric cover is delivered as a large, heavy roll or folded bundle. Depending on the building size and the crew's method, the fabric is either unrolled on the ground alongside the building and lifted over the frame using equipment, or deployed from the peak using a cable and pulley system. Either way, the fabric needs to be positioned correctly on the first attempt — repositioning hundreds of pounds of PVC-coated polyester draped over a steel frame is difficult, time-consuming, and risks damage to the material.
This is the step most affected by wind. Fabric deployment on a calm day is methodical and controlled. Fabric deployment in 30 km/h gusts is a sail-handling exercise that experienced crews know to avoid. Most installation crews set a wind speed threshold of approximately 30 to 35 km/h (roughly 20 mph) for fabric deployment — above that, the fabric becomes uncontrollable and the risk of damage or injury is too high. If the wind is up on the scheduled fabric day, the crew waits. It's one of the reasons experienced installers check the extended forecast before committing to a schedule.
With the fabric draped over the frame, the tensioning process begins. This is where a fabric building becomes a fabric building — as opposed to a frame with a tarp on it. The tensioning system (ratchet straps, lacing bars, or proprietary tensioning hardware depending on the manufacturer) pulls the fabric tight against the frame, removing slack and wrinkles and establishing the designed load paths that allow the fabric to carry wind and snow loads.
Tensioning isn't a one-step process. The fabric is initially pulled to a moderate tension across the entire building, checked for alignment and symmetry, then progressively tightened to final specification. Over-tensioning risks tearing the fabric at stress points. Under-tensioning leaves the fabric loose enough to flap in wind, which accelerates wear at contact points and can fatigue the fabric over time. The correct tension is specific to the building design and the fabric material — it's an engineering specification, not a judgment call.
After tensioning, the crew completes the finish work: installing doors, securing end wall panels, attaching trim and flashing, checking all bolted connections for proper torque, and doing a final walk-around inspection of the entire building. The inspection covers frame alignment, fabric condition (checking for any installation damage), anchor security, door operation, and drainage around the building perimeter.
A 30-by-40-foot building (1,200 square feet) is typically a 2–3 day install for an experienced crew. The frame is small enough that trusses can be handled with minimal equipment, the fabric is light enough for straightforward deployment, and the total bolt count is manageable without major staging.
A 40-by-60-foot building (2,400 square feet) is the most common size for agricultural equipment storage, and it typically runs 2–3 days. This is the sweet spot where the building is large enough to need a telehandler for truss erection but small enough that the crew can maintain momentum through the sequence without significant staging delays.
A 50-by-100-foot building (5,000 square feet) pushes the timeline to roughly 4–5 days. More trusses, more fabric, more connections, and the equipment requirements scale up. Larger buildings may require a crane rather than a telehandler for truss placement, which adds a logistics step and potential scheduling constraint.
Buildings above 60 feet wide or 120 feet long are multi-day projects that require detailed planning, larger crews, and more substantial equipment. A 60-by-120-foot building (7,200 square feet) typically runs about 7 days. Very large builds — 70 feet wide, 150 to 200 feet long — typically run about 9 days with a 5-person crew, with the fabric deployment alone consuming most of a day.
Every installation schedule is a weather-dependent estimate. The three conditions that stop work are high wind, heavy rain, and extreme cold.
Wind is the most common disruptor. Frame assembly can proceed in moderate wind — 20 to 30 km/h — but fabric deployment requires calm conditions. Above approximately 30 km/h, the fabric becomes a sail that no crew can control safely. Crane and manlift operations have their own wind limits: most manufacturers specify maximum operating wind speeds of 50 to 70 km/h for crane work, but practical limits for precision work like truss placement are lower.
Rain doesn't stop frame assembly but it does make steel slippery, hardware harder to handle, and working at height more dangerous. Heavy rain also saturates the site, which can affect equipment mobility on gravel pads and create mud conditions that complicate everything.
Cold affects materials and crew. Below -15°C, PVC fabric becomes stiff and can crack if handled aggressively. Below -20°C, steel enters the brittle zone where impact sensitivity increases. Crew productivity drops significantly in extreme cold — Alberta OHS guidelines require structured warm-up breaks that reduce the effective working day. A winter installation is possible but takes longer and requires more careful handling of every component.
A fabric building installation is a construction site, and it carries construction site hazards — working at height, heavy material handling, equipment operation, and overhead work. Alberta's Occupational Health and Safety Code requires fall protection for any worker who may fall 3 metres (10 feet) or more and is not protected by guardrails. On a fabric building installation, that applies to anyone working on top of trusses, on manlifts, or on the frame during fabric deployment.
Fall protection means full body harnesses with shock-absorbing lanyards rated to CSA Z259.11-17 standards. It means clearance distance calculations — a worker on a 1.8-metre lanyard with a standard energy absorber needs a minimum of 5.6 metres of clear space below the anchor point. It means a written fall protection plan prepared by the employer before work begins.
For the property owner, safety means staying out of the active work zone. Watching the installation from a safe distance is fine. Walking under a truss that's being lifted, standing under fabric that's being deployed, or entering the equipment operating zone is not. The crew manages their own safety protocols. Your role is to not create additional hazards by being in the wrong place.
The best thing a property owner can do on install day is be available and stay out of the way. Available means reachable by phone or on the property in case the crew has questions — about utilities, about the site, about access, about your preferences on door placement or orientation. Out of the way means not in the work zone, not rearranging the material staging, and not directing the crew's work sequence.
Professional installation crews have a process. They've done this hundreds of times. They know the sequence, they know the equipment, and they know the material. An owner who trusts the process gets a faster, better installation than one who hovers. If there's a decision to be made — and there usually are a few during any install — the crew will come find you.
When the crew finishes, they'll walk you through the completed building. They'll show you the tensioning system and explain how it works. They'll point out any areas that may need re-tensioning after the building settles and the fabric adjusts to temperature cycling — this is normal and expected, typically within the first few weeks. They'll demonstrate the doors, explain any maintenance requirements specific to your building, and answer questions.
Then they'll clean up. Tools, packaging, scrap materials, equipment — a professional crew leaves the site the way they found it, minus the pile of building components and plus a finished building.
The first re-tensioning check should happen two to four weeks after installation, once the fabric has gone through a few temperature cycles and settled into its final position on the frame. After that, an annual inspection of fabric condition, tensioning, and hardware is sufficient for the first ten years of the building's life. Your building is up. The hard part is done.
We install fabric buildings from every major brand across Western Canada. Transparent pricing on our website — no surprises on install day.