Made to Measure PVC Strip Curtains UK: 2026 Buyer’s Guide to Custom Sizing, Overlap & Fitting

Made to measure PVC strip curtains are custom-engineered secondary industrial barriers designed to match exact doorway dimensions, optimising thermal retention, draft exclusion, and pest containment. By specifying precise PVC strips, hardware profiles, and overlap percentages, custom systems provide robust temperature control and reliable workflow efficiency for high-traffic UK industrial environments.

What Are Made to Measure PVC Strip Curtains?

A made to measure strip door is an engineered industrial partition system consisting of overlapping flexible polyvinyl chloride extrusions suspended from a robust structural headrail. Unlike generic, off-the-roll alternatives that require hazardous on-site cutting and trial-and-error assembly, a bespoke system is pre-cut, pre-punched, and fitted with stainless steel or galvanised hanger plates calibrated directly to the exact width and height of an architectural or structural opening.

At an engineering level, industrial-grade flexible PVC relies on compound polymerisation combining vinyl chloride monomers with stabilisers, lubricants, and high-performance plasticisers such as DOTP (dioctyl terephthalate). This formulation ensures long-term suppleness, optical clarity, and resistance to environmental stress cracking without leaching. When suspended, these individual PVC strips hang plumb, interlocking through an engineered curve (the natural curvature imparted during the extrusion and cooling process) to form an unbroken, resilient barrier.

Modern industrial facilities utilise several primary configurations of this flexible curtain technology:

• Standard Clear Extrusions: Crystal-clear material designed for internal pedestrian and light vehicular partitions operating between -15°C and +50°C.
• Polar and Super-Polar Grade: Formulated with specialised low-temperature plasticisers that prevent embrittlement, hardening, and snapping in ambient sub-zero conditions down to -40°C.
• Ribbed and Double-Ribbed (Buffer) Profiles: Features raised longitudinal ribs on both faces. The ribs absorb the mechanical abrasion and surface friction caused by heavy plant machinery, preserving the optical transparency of the recessed flat face and extending curtain service life.
• Anti-Static Formulations: Engineered with dedicated surface-conductive agents to dissipate electrostatic discharge (ESD) within microelectronics, cleanrooms, and volatile chemical environments.
• Welding Grade Barriers: Tinted compounds formulated to absorb hazardous UV and blue light radiation generated during arc welding operations, complying with safety protocols while allowing supervisors external line-of-sight.

Key Benefits and Industrial Applications

Installing tailor-made pvc strip curtains resolves several conflicting operational challenges: the requirement for open, rapid throughput of goods versus the requirement for strict environmental containment. Below is an overview of how key UK industries deploy these systems to safeguard operational workflows.

1. Temperature Control and HVAC Thermal Efficiency

Uncontrolled air exchange across external apertures represents one of the largest sources of industrial energy waste in the United Kingdom. Whether installed across an external loading bay or fitted behind high-speed roller doors, a custom-fitted curtain dramatically restricts convective air transfer. By enclosing conditioned spaces, businesses achieve sustained temperature control, reducing the operational run-hours of commercial chillers, evaporators, and warm-air space heaters, resulting in substantial, measurable energy saving metrics across every quarterly billing cycle.

2. Food Processing, Cold Chain, and HACCP Compliance

The UK food supply chain is subject to uncompromising hygiene frameworks, specifically the Food Safety Act 1990 and HACCP management systems. Within food production facilities, meat processing plants, and cold storage distribution centres, bespoke curtains act as an impenetrable hygiene barrier against flying insects, airborne detritus, dust, and particulate cross-contamination. Non-toxic, food-grade formulations ensure that accidental contact with product packaging or exposed produce carries zero chemical migration risk, while maintaining rigorous separation between primary processing rooms and dispatch zones.

3. Logistics, Warehousing, and Forklift Access

In modern high-throughput fulfilment centres, rapid cycle times are critical. Rigid industrial doors create operational friction and are prone to catastrophic collision damage from material handling equipment. A custom strip door provides uninhibited, instantaneous forklift access. Drivers maintain complete forward visibility through optically clear PVC, driving straight through the flexible curtain without halting. The weighted strips instantly settle back into an airtight interlock behind the vehicle, eliminating the thermal vacuum commonly created by moving plant machinery.

4. Heavy Manufacturing, Dust Isolation, and Acoustic Attenuation

In foundries, joinery workshops, automotive manufacturing, and metal fabrication plants, strip curtains provide spatial zoning without structural building alterations. Suspended as internal divides, they isolate aggressive abrasive dust, metal swarf, and paint overspray. Furthermore, the inherent mass of heavy-gauge industrial PVC (approx. 1.2 to 1.25 g/cm³) delivers passive acoustic damping, reducing ambient machine noise transfer between workshop bays by up to 28–32 dB Rw.

Technical Specifications and Engineering Standards

Specifying industrial PVC curtains requires precise alignment between the physical opening dimensions, the mechanical duty cycle, and thermal differentials. Selecting improper strip widths or gauges leads either to premature material failure or hazardous resistance against passing personnel.

Material Hardness and Performance Classifications

Standard industrial PVC strips exhibit a Shore A durometer hardness rating between 75 and 80 at 20°C, providing the optimal balance of vertical rigidity and flexibility. Polar-grade variants are engineered with a lower initial Shore A hardness (typically 65 to 70 at room temperature) to ensure they do not become dangerously rigid when deployed inside sub-zero blast freezers or cold storage holding areas.

UK and European Safety & Fire Standards

All industrial curtains installed within commercial and public-sector properties in the UK must adhere to stringent reaction-to-fire performance criteria. High-quality PVC formulations are inherently self-extinguishing and compliant with BS EN 13501-1 (Class B-s3, d0) or BS 476 Part 7 (Class 1 spread of flame). This ensures the material will not act as an accelerant or propagate flame spread across structural fire exit routes or warehouse boundaries.

Strip Dimensions and Overlap Configuration Guide

The structural geometry of a made to measure curtain is determined by three variables: strip width, strip thickness, and the percentage of physical overlap. The table below outlines standard engineering parameters based on operational doorway height and traffic type:

Strip Width (mm)	Thickness (mm)	Recommended Height (m)	Overlap Options (%)	Typical Application Profile
100mm	1.2mm – 1.5mm	Up to 2.1m	50% to 100%	Light pedestrian access, retail stockrooms, small walk-in larders.
200mm	2.0mm	Up to 3.0m	36% to 77% (Hook-on)	Internal personnel doorways, light pallet truck traffic, commercial kitchens.
300mm	2.0mm – 3.0mm	3.0m to 4.5m	41% to 83% (Hook-on)	Internal/external factory divides, moderate forklift access, cold storage.
400mm	3.0mm – 4.0mm	4.5m to 7.0m+	50% to 100% (Hook-on)	External loading bay apertures, heavy haulage portals, high-wind exposures.

Understanding Overlap Percentages

Overlap dictates the curtain's resistance to drafts, positive/negative pressure differentials, and thermal bypass. In a hook-on system, overlap is calculated based on how many "hooks" on the suspension rail are shared between adjacent strips:

• Minimum Overlap (approx. 33% to 41%): Suitable exclusively for internal partitions with zero air pressure differences and light foot traffic. Provides absolute minimal resistance when pushed through.
• Medium Overlap (approx. 50% to 66%): The definitive standard for UK industrial interiors, chiller entrances, and factory partitions experiencing regular hand-pallet and forklift movement.
• Maximum Overlap (approx. 75% to 100%): Required on all external-facing doorways, loading docks, and freezer thresholds where heavy mechanical draft or extreme thermal differentials exist.

How to Choose the Right Strip Curtain System

To ensure maximum operational longevity and safety, systematic evaluation of the installation environment is essential before placing an order for bespoke strip doors. Work through these core operational criteria:

1. Assess the Traffic Profile

Identify what will pass through the aperture daily. Pedestrian-only traffic requires lightweight, thin extrusions (200mm x 2mm) with moderate overlap to allow easy passage without excessive physical effort. When material handling equipment such as reach trucks, counterbalance forklifts, or side-loaders are in use, move up to 300mm x 3mm or 400mm x 4mm double-ribbed profiles. The raised profile protects the transparency of the PVC, ensuring vehicle operators retain long-term visual clarity of hazards beyond the door threshold.

2. Evaluate Temperature Differentials

If you are sealing an ambient warehouse environment from typical UK weather variations, standard clear PVC performs reliably year-round. However, if the curtain isolates a temperature-controlled chiller (0°C to +4°C) or deep-freeze facility (-18°C to -28°C), always specify polar-grade PVC. Standard PVC in a sub-zero freezer loses its molecular suppleness, turning brittle, cracking along stress points, and imposing excessive mechanical strain on passing plant equipment.

3. Analyse Environmental Exposure and Draft Pressures

External doorways facing prevailing winds or high-pressure loading bays demand heavier gauge strips. Installing lightweight 200mm strips on a 4-metre-tall external opening will result in severe thermal failure; the strips will "sail" and separate under wind loads, breaking the thermal barrier completely. For such openings, specify 400mm-wide by 4mm-thick material configured with a 100% hook-on overlap to ensure structural stability against continuous air currents.

4. Select the Correct Suspension Hardware

Suspension systems determine ease of maintenance and long-term mechanical reliability:

• Hook-On System (Stainless Steel Grade 304 or Galvanised): The industry-standard modular mounting solution. Pre-riveted strip hangers simply hook over a profiled track. Individual strips can be demounted, washed, rotated, or replaced in seconds without tools. Grade 304 stainless steel is mandatory for food preparation zones and high-moisture processing lines.
• Sliding Track Hardware: Ideal where an opening requires periodic full-width clearance, such as seasonal cross-docking operations or when transferring oversized machinery. Strips slide laterally out of the opening along heavy-duty overhead tracks, parking flush against adjacent walls.

Measuring and Installation Overview

Accurate site survey measurements are vital when ordering bespoke strip curtains. Unlike standard building timber or metalwork, you cannot seamlessly patch an incorrectly specified industrial curtain.

Measuring Protocol: Face-Fix vs Under-Lintel (Soffit-Fix)

First, determine the fixing plane of the structural lintel:

• Face-Fixed (Recommended for External Apertures): The suspension rail mounts onto the flat face of the internal wall directly above the doorway structural opening. Add a minimum of 50mm to 75mm on each side (total width + 100–150mm) and 50mm to the structural height. This external overlap prevents edge leakage and blocks side drafts completely.
• Soffit-Fixed / Under-Lintel (Ideal for Internal Corridors): The rail mounts directly to the underside of the structural frame or reveal. Measure the exact aperture width at the highest point and the exact drop from the underside of the lintel down to the structural finished floor level. Precision is paramount here, as the rail must fit snugly between structural jambs.

Step-by-Step Installation Process

1. Structural Anchor Installation: Position the pre-drilled hook-on track horizontally across the marked line. Use a high-precision spirit or laser level. Affix securely into masonry, structural concrete, or structural steelwork using heavy-duty masonry sleeve anchors or high-tensile tek screws. Under no circumstances mount directly to non-reinforced plasterboard or unbacked thermal cladding.
2. Inspection of Strip Curvature: Each pre-fitted strip possesses a natural, slight longitudinal convex-concave curve resulting from the cooling process during manufacture. Lay the strips out flat on clean industrial sheeting to normalise to room temperature for 1–2 hours before hanging.
3. Suspension and Interlocking Pattern: Hang the first PVC strip onto the rail with its curve facing outward (convex). Hang the adjacent strip with its curve facing inward (concave), overlapping the designated number of track hooks. Alternating the face profile (convex/concave) creates a mechanical pinch-seal, preventing gaps between strips under ambient wind or draft pressure.
4. Bottom Clearance Adjustment: The bottom edge of each strip must finish 10mm to 15mm above the finished floor level. Strips resting flat on the concrete will be trapped beneath forklift tyres during transit, causing the hanger plates to tear off overhead. Made to measure orders arrive factory-cut to exact height, but final floor level variations may require light trimming using a heavy-duty retractable utility knife and an industrial straight edge.

Frequently Asked Questions

How do I calculate the required overlap for external loading bay doors?

For an external industrial door or exposed loading bay, specify either a 300mm x 3mm strip with an 83% overlap (5 hooks shared) or a 400mm x 4mm strip with a 75% to 100% overlap. Never select a 200mm wide strip or minimal 36% overlap for external perimeters; high wind exposure will cause thin strips to blow inward, allowing drafts to break the thermal seal and destabilising internal climate control systems.

What is the physical difference between standard and polar grade PVC strips?

The distinction lies in the molecular plasticiser formulation used during extrusion. Standard clear PVC is engineered for ambient temperatures from -15°C to +50°C. If deployed inside a sub-zero environment, it loses its plastic state, turning stiff, glassy, and brittle. Polar-grade PVC incorporates specialized plasticisers allowing it to maintain dynamic elasticity down to -40°C, ensuring a secure seal in commercial blast freezers without risk of material fracturing.

Can damaged individual PVC strips be replaced without changing the whole rail?

Yes. When using a hook-on suspension track, each strip is held within its own independent stainless steel or galvanised hanger plate. If a strip becomes scuffed, torn, or contaminated, simply unhook that specific strip from the overhead rail and hook a replacement strip into the identical position. The overhead rail remains anchored indefinitely, minimising facility maintenance overheads.

How does a PVC strip curtain impact energy saving and UK carbon compliance?

Installing tailor-made pvc strip curtains dramatically restricts uncontrolled infiltration of unconditioned air through open structural doorways. By providing an immediate physical barrier against convective thermal exchange, they reduce the workload on facility heating, ventilation, and air conditioning (HVAC) systems. This decreases kilowatt-hour (kWh) electrical and gas consumption, directly reducing operating overheads and assisting UK organisations in meeting Streamlined Energy and Carbon Reporting (SECR) emission targets.

Are PVC strip curtains compliant with UK HACCP food hygiene regulations?

Yes, provided high-grade non-phthalate food-safe PVC and Grade 304 stainless steel suspension systems are specified. A custom-fitted flexible hygiene barrier prevents flying insects, dust, and environmental airborne pathogens from entering sensitive preparation, slicing, and packaging areas. The smooth extrusions are non-absorbent and can be regularly scrubbed with neutral food-safe sanitising detergents without degrading the material's integrity or clarity.

Selecting the correct industrial barrier requires precision engineering, robust hardware, and strict alignment with site operations. Browse our complete range of commercial solutions by visiting our pvc strip curtains catalogue, explore specialised thermal barriers in our cold room freezer strip curtains range, or configure your bespoke opening instantly with our engineered made to measure pvc strip curtains tailored precisely to your building specifications.