Structures
Polyhouse Systems
Accessories supplied with the structure — the only way site stoppages do not happen.
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Structures
Greenhouse Accessories
Profile, spring, clamps, pulleys and clips. Unglamorous, cheap, and the reason your installation either finishes on schedule or stops dead for a week.
Overview
The parts nobody costs and everybody needs
Every polyhouse project we have seen stall has stalled over accessories. Not over the frame, not over the film — over a clamp size nobody ordered, or a spring that ran out at bay eleven of fourteen.
These parts are individually trivial and collectively decisive. Profile and zigzag spring is what actually holds your film and netting to the structure — an unsealed edge means your insect net excludes nothing and your film billows until it tears. Clamps and connectors hold the frame geometry, and the wrong diameter simply does not fit. Pulleys run the roll-up vents that make natural ventilation work. Plant clips carry the crop.
The failure mode is always the same: accessories get treated as an afterthought, ordered late or under-ordered, and a site with a crew standing on it waits for a part worth a few rupees. We supply the accessory line with the structure, quantified against your actual bay count and vent runs, because that is the only way it does not happen.
If you are buying a structure from someone else and just need the fittings, that is fine too — send us the tube diameter and the bay count.
Features
Across the line
Profile & zigzag spring
Aluminium profile with locking spring — the standard method for securing film and net to structure.
GI clamps & connectors
Galvanised clamps across tube diameters. Wrong diameter means it simply does not fit.
Pulleys & roll-up gear
The mechanism that makes side ventilation actually operable rather than theoretical.
Plant support clips
Crop support clips and hooks for trellised production.
Quantified to your build
Counted against your bay count and vent runs, not estimated.
UV-stabilised plastics
Clips and fittings live in full light under the film. Non-stabilised parts go brittle and fail.
Specifications
The accessory line
Six families of part. Send us your tube diameter, bay count and vent runs and we will quantify the lot.
| Item | Material | Function | Specified By |
|---|---|---|---|
| Aluminium profile | Aluminium | Film and net fixing channel | Running length of fixing line |
| Zigzag spring | Spring steel | Locks film/net into profile | Running length — matched to profile |
| GI clamp | Galvanised steel | Tube-to-tube frame connection | Tube diameter and joint count |
| Connector / joiner | Galvanised steel | Tube extension and angle joints | Tube diameter and geometry |
| Pulley | GI / UV plastic | Roll-up vent operation | Vent run length and count |
| Plant support clip | UV-stabilised plastic | Crop support on trellis | Plant count and crop type |
Accessory quantities are a function of your structure geometry — bay count, fixing line length, vent runs and plant density — not a standard kit. Under-ordering is the single most common cause of site stoppage on polyhouse builds. Send us the structure dimensions and we will quantify against them, including sensible contingency.
Materials
- Aluminium profile, spring steel
- Galvanised steel clamps and connectors
- UV-stabilised plastics for clips and fittings
- Corrosion-appropriate for humid structures
Supply & support
- Quantified against your bay count
- Supplied with the structure as one order
- Available standalone if you built elsewhere
- Sensible contingency included in quantities
Applications
Where accessories are used
Every fixing, joint, vent and support in a protected structure.
Advantages
Why these matter more than they look
Nobody photographs a clamp. But the accessory line is where installations succeed or stall, and where an otherwise sound structure fails at the edges.
- No site stoppages. Quantified against your build means the crew does not stand idle waiting for a part.
- Nets actually work. Profile and spring seal the perimeter. An unsealed insect net excludes nothing at all.
- Film survives wind. Properly fixed film does not billow, and film that does not billow does not abrade and tear.
- Ventilation stays operable. Roll-up gear that works means vents get used. Vents that stick stay shut.
- Frame geometry holds. Correct clamps at correct diameter keep the structure in the shape it was designed as.
- Serviceable. Standard parts mean repairs and extensions are straightforward years later.
Gallery
Detail
Industries
Sectors we supply
FAQ
Common questions
It is the standard method for securing film and netting to a structure. The aluminium profile is fixed to the frame along the fixing line, the film or net is laid over it, and the zigzag spring is pressed into the channel to lock it in place. It grips without puncturing, it can be released and re-tensioned, and it gives a continuous seal along the whole run. This last part matters enormously for insect netting — a perimeter with gaps excludes nothing, no matter how fine the mesh.
By structure geometry, not by guesswork. Profile and spring are specified by the running length of every fixing line — perimeter, vents, gable ends. Clamps by tube diameter and joint count. Pulleys by vent run length. Plant clips by plant count. Send us your structure dimensions and bay count and we will quantify the lot, including sensible contingency. Under-ordering is the most common cause of site stoppage on polyhouse builds, and it is entirely avoidable.
Yes, and it is a common request. We need the tube diameter, the bay count, the fixing line lengths and the vent configuration. Tube diameter in particular is not something to guess — measure it. A clamp for the wrong diameter is scrap, and the delivery time to correct it is exactly the site stoppage you were trying to avoid.
Yes, and it is a real failure mode rather than a sales point. Clips and plastic fittings sit in full light under the film for the entire life of the crop. Non-stabilised plastic goes brittle and snaps, typically mid-season with a loaded crop on it. The clip is worth a rupee; the crop it drops is not. This is one place where the cheap option genuinely costs more.
Zigzag spring, consistently. It is specified by running length across every fixing line, and people count the perimeter but forget the vents, the gable ends and the internal partitions. The result is a site that gets to bay eleven of fourteen and stops. When we quantify, we count every fixing line on the drawing and add contingency — because a spare coil of spring is cheap and a stalled crew is not.
Enquiry
Request a
specification.
Send your tube diameter, bay count, fixing line lengths and vent runs. You will get a quantified accessory list with contingency — not a generic kit.
Related
Specified alongside
Products that typically ship in the same order.
Structures
Structures
Protection
Insect Nets
Profile and spring is what makes the perimeter seal — without it the mesh is decorative.
View product
Protection