Industrial · Clear-span structures
Clear-span aluminium structures with nothing standing inside — used for covered storage, loading shelters, overflow warehousing and plant protection where a permanent building is too slow, too costly or not permitted.
01 What the structure has to solve
A clear-span structure is simple to look at and unforgiving to design. The span sets the truss depth, the truss depth takes height out of the eaves, the eave height decides whether a trailer can reverse in, and the wind load decides how much anchor or ballast the legs need. One of those wrong on paper shows up on site.
A 15 m clear span needs a deeper truss than a 10 m one, and the deeper truss takes height out of the eaves you were counting on. The drawing states clear span, clear height under the truss and eave height as three separate numbers — not one headline figure that hides the difference.
A structure with open sides behaves differently from one skinned in PVC. Open lets wind through but loads the frame unevenly; closed turns the whole roof and wall into a sail. The design states which condition it is calculated for, and whether the sides are meant to stay on in a storm.
These structures are anchored, not founded. On asphalt, compacted hardcore or a slab the legs need base plates with chemical anchors or ballast; on soft ground they need a concrete pad. The anchor schedule follows the surface you actually have, which is why photos of the ground matter as much as the span.
A wide roof collects a lot of water. The gutter runs along the eave, downpipes need somewhere to discharge, and a long run needs a fall that does not pond at the low corner. Where the structure abuts an existing building, that junction is the detail that leaks first.
02 Configuration
The structure is quoted as a bay grid: clear span, bay length, eave height and roof pitch. Doors, side walls, lighting and gutters all attach to that grid, which is why the layout drawing comes before the price.
03 Photographs
Reference installations across this range. Sizes, colours and membranes vary by project — send a photo of your site and we will say which of these is closest.
04 How it works
Every project follows the same four steps. Nothing is cut until the drawing is approved and the deposit is received.
What goes inside, the height of the tallest vehicle or stack, the ground surface and photos of the yard from two directions.
Clear span, bay length, eave height, roof pitch, the wind and snow values to design to, and the anchor or ballast schedule.
Priced per bay with roof and side build-up, doors, gutters, packing and delivery terms.
Frame cut and coated, roof and sides crated separately, every bundle tagged to its assembly group.
05 Questions
Something not covered here? Send the question on WhatsApp — we answer in English. All questions
It is a designed and calculated structure, not a building. Whether it counts as permanent for planning depends on your local rules, so most buyers confirm with the authority before ordering — we supply the layout drawing and the structural calculation for that conversation.
The frames are bolted, so erection is a crane or telehandler plus a crew. We supply a frame plan with each member numbered, a suggested sequence and a packing list your installer can price from. Time depends on span, bay count and whether the sides are skinned.
Usually yes. The frame is bolted rather than welded, so it can be dismantled and re-erected on a new pad; the anchors are the consumable part. If you know it will move, tell us at quotation stage, because the base plate and bracing details change.
The structure is calculated for the wind and snow values you give us, or for the values in your local code once you tell us the region. Those figures are printed on the drawing. We do not publish one rating intended to cover every country.
Yes, and the junction is the detail to get right: the new roof must not load the existing wall, and rain running off the new roof must not be thrown onto the old one. The drawing shows the gap, the flashing and the gutter, and the existing wall is treated as a boundary rather than a support.
No catalogue numbers, no online checkout. Tell us the site, the span and the destination, and the quotation is built against the layout you approve.
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