PRODUCT FAMILY 06 · FITTINGS
Fittings decide whether the frame goes up in three days or ten.
Eight groups of small parts: the clamps, brackets, anchors, clips and vent hardware that turn a bundle of tube into a house. They are cheap per piece and expensive when missing — which is why they are quoted as a kit, not as a footnote.
Buyers who have built a house before ask about fittings first. They know that the tube arrives on time and the clamps do not, and that a missing bag of 200 clips stops a crew. We quote fittings as a bill of materials against the frame schedule: every clamp line references the member it joins.
Arch clamps & connectors
Cast or formed clamps that join arch to gutter, arch to purlin, and tube to tube. The joint is where a frame fails first.
OpenArch clamps & connectorsGutter brackets & hangers
Brackets that carry the gutter and the crop wire below it. A gutter is a structural member, not a rain channel.
OpenGutter brackets & hangersAnchors & base plates
Ground screws, concrete-in anchors, base plates and post feet. The cheapest place to add wind capacity.
OpenAnchors & base platesFilm clips & springs
W-clips, spring clips, and channel profiles that hold film to the purlin. How fast the cover goes on.
OpenFilm clips & springsVent & roll-up hardware
Roll-up tubes, ratchets, gears, vent brackets and ridge vent parts. Ventilation decides the climate inside.
OpenVent & roll-up hardwareDoors & end frames
Door frames, sliding and roller doors, end wall framing. The one part every visitor touches.
OpenDoors & end framesTape, sealants & repair
Repair tape, overlap tape, sealants and zinc-rich touch-in paint. What keeps a galvanised frame galvanised.
OpenTape, sealants & repairCrop support & trellis
Wire hooks, tensioners, trellis clips and crop wire. What the plants actually hang from.
OpenCrop support & trellisWhy fitting quality is a price question
A clamp that is 0.5 mm under bore will not close on the tube; a clamp cast from the wrong grade cracks when tightened cold. Both look identical in a photo. That is why we ask for the clamp bore on the drawing and why we send a sample bag before a first order — a USD 30 sample prevents a USD 3,000 argument.
The spare-parts rule
Order 5 % spare clips and 2 % spare clamps. Crews drop them, and a second shipment of small parts costs more in freight than the parts cost in steel.
Read next
Pages that answer the question this page raises.
- 04.06.01Arch clamps & connectorsArch clamps & connectors for greenhouse frames — cast or formed clamps that join arch to g→
- 04.06.04Film clips & springsFilm clips & springs for greenhouse frames — w-clips, spring clips, and channel profiles t→
- 05.01Multi-span film houseMulti-span film greenhouse frames: 6.2–12 m span, gutter-connected, galvanised oval arches→
- 10.02Specification checklistGreenhouse frame specification checklist: eleven inputs from area and span to documents, w→
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