Classic 72mm Sightlines. Confident Security.
The Origin OB-72 Bi-Fold Door features our classic 72 mm sightline for a more traditional frame aesthetic with generous glass areas. Panels fold and stack neatly to create wide, open access, with an optional everyday traffic door for quick in-and-out use. Precision-engineered in the UK, OB-72 combines free-glide running gear, thermally insulated aluminium, and advanced weather seals for smooth, quiet operation all year round. Security comes from an 8-point locking system, with a 3-Star Diamond cylinder upgrade and PAS 24 / Secured by Design available.
*For the OB-72, U-values as low as 1.1 W/m²K can be achieved with triple glazing and specific configurations. Actual performance will depend on glazing specification, panel size/count, threshold design, and installation. Please speak to us for a project-specific specification.
British Engineering Excellence
Designed and manufactured in the UK by Origin, ensuring exceptional quality and supporting British craftsmanship.
Premium-Grade
Aluminium
Thermally insulated aluminium with a durable powder-coated finish for long-lasting weather resistance and low maintenance—just routine cleaning with mild soapy water.
Advanced Thermal Performance
U-values as low as 1.1 W/m²K with triple glazing. Polyamide thermal breaks and comprehensive weather seals help keep homes warm in winter and cool in summer. Actual results depend on glazing and configuration.
Free-Glide
Hardware
Bottom-rolling carriages with precision bearings and a guided top track deliver a quiet, effortless fold-and-slide action day after day.
Ultra-Secure
Locking
Robust 8-point locking with high-security cylinders; 3-Star Diamond cylinder upgrade available. PAS 24 and Secured by Design options for enhanced protection.
High-Performance
Glass
Toughened safety glass as standard, with options for laminated and acoustic glazing, low-e coatings, warm-edge spacers, argon fill, and triple-glazed units. Integral blinds available.
Completely
Bespoke
Every OB-72 is made to measure: choose from 150+ RAL colours (dual-colour available) and woodgrain finishes, multiple handle styles (standard aluminium lever or stainless upgrade), weathered or non-weathered thresholds, traffic-door options, and 1–12 leaf configurations—including corner sets.
OB-72 Configuration Options
Choose anything from a matching single hinged door to 1–12-leaf bi-fold sets. Panels can open in or out, stack to the left, right or split, and many layouts include an everyday traffic door. Two–three leaf sets suit smaller openings, while four–six leaf sets can create centre-opening (bi-parting) designs; longer runs are available on request. Download the PDF Configuration Brochure to see all configurations.
Two-Leaf Configuration
Ideal for smaller openings. Choose a 2+0 bi-fold where both leaves fold and stack to the same side (the lead leaf works as an everyday traffic door), or a French (1+1) pair for traditional hinged operation. Opens in or out, stacks left or right, with weathered or low/flush thresholds to suit your project.
Three-Leaf Configuration
Flexible layouts for everyday use. Choose 3+0 (all three leaves fold and stack to one side) or 2+1 (two leaves stack together with a separate traffic door). Opens in or out, stacks left or right, with weathered or low/flush thresholds available.
Four-Leaf Configuration
Great for wider openings and centre-opening designs. Popular 3+1 layout gives a traffic door with no central mullion; 4+0 stacks all leaves to one side; or create a French-style 1+1 with fixed side panels. Opens in or out with threshold options to suit the setting.
Five-Leaf Configuration
For large spans with asymmetric stacks. Options include 5+0 (all leaves one way), 4+1 (four stack together plus a traffic door), or 3+2 split stack. Opens in or out, stacks left/right/split, with weathered or low/flush thresholds.
OB-72 Bi-Fold Door Specifications
Spec | OB-49 |
|---|---|
Construction | Premium-grade, thermally broken aluminium |
Manufacture Origin | United Kingdom |
Insulation | U-Value as low as 1.1 W/m²K with triple glazing |
Glazing | Double or triple glazing; sealed unit options 24 / 28 / 32 mm |
Triple Glazing | Available |
Trickle Vents | Optional, integrated through the top track |
Frame Finish | Over 150 RAL colours, dual-colour option; popular colours on fast lead times |
Handle Finish | Aluminium lever handle supplied as standard (white/black/chrome); stainless-steel handle range available as an upgrade. Slave & D-handles also available |
Leaf Width (max.) | Up to 1,200 mm per leaf (down to 325 mm minimum) |
Leaf Height (max.) | Up to 2,876 mm per leaf |
Sightline | 72 mm classic profile |
Panel Configurations | 2 to 12 leaves; split stacks and centre-opening options available |
Operation Type | Bottom-rolling Free-Glide folding system with precision carriages & guided top track |
Security | 8-point locking; 3-Star Diamond cylinder upgrade available (1-Star standard). PAS 24 & Secured by Design achievable |
Threshold Options | Weathered, non-weathered and mobility thresholds (mobility on French/single doors) |
Warranty | Up to 10-year guarantee |
* Performance depends on glazing, sizes, configuration and installation. For project-specific guidance, we’ll tailor the specification.
Colour Options
Hipca White 9910G
Jet Black 9005M
Dark Silver 9007M
Anthracite Grey 7016M
Black Grey 7021M
Slate Grey 7015M
Handle Options & Hardware
Choose from premium hardware designed to complement the ultra-slim OB-72 bi-fold system.
Stainless Lever Handle (Traffic Door)
Ergonomic stainless-steel lever on the everyday access door with integrated multi-point locking and a 3-Star security cylinder. Multiple styles available and colour-coordinated options.
D-Handle (Folding Leaves)
Robust pull handle fitted to the folding leaves for easy opening and neat stacking. Available in stainless steel or RAL colour-matched finishes.
Slave Handle & Shoot Bolts
Low-profile slave handle operates the concealed top and bottom shoot bolts on intermediate leaves—quick to use and securely locks the set.
Free-Glide Running Gear
Bottom-rolling carriages with precision bearings and a guided top track deliver a smooth, quiet fold-and-slide action, built for long-term reliability.
Key Features & Benefits
The Origin OB-72 pairs classic 72 mm sightlines with a smooth free-glide folding action. Precision-engineered in the UK, it delivers wide views, dependable operation and a more traditional frame aesthetic to suit modern or period homes.
Classic 72mm Mullion
A timeless 72 mm sightline adds presence and rigidity while maintaining generous glass areas and clear views.
Free-Glide Operation
Bottom-rolling carriages with precision bearings and a guided top track provide a quiet, effortless fold-and-slide—day after day.
Advanced Thermal Efficiency
Thermally insulated aluminium, comprehensive weather seals and high-performance glazing help keep heat in during winter and out in summer. U-values from 1.1 W/m²K with triple glazing.
Durable Powder-Coated Finish
High-grade powder coating creates a tough, smooth surface that resists weathering and colour fade. Choose from 150+ RAL colours, dual-colour options and woodgrain finishes.
High-Security Locking
Robust 8-point locking with high-security cylinders; 3-Star Diamond cylinder upgrade available. PAS 24 / Secured by Design options for enhanced protection.
British Manufacturing
Designed, engineered, manufactured and supported in the UK for consistent quality and dependable lead times.
Why Choose Origin OB-72 Over Other Systems?
The OB-72 combines classic 72 mm sightlines with a smooth free-glide folding action—offering practical advantages over sliding, French and traditional patio doors.
Wider Openings Than Sliding Doors
Bi-fold leaves stack to the side to create a near full-width opening for effortless indoor–outdoor living—something sliders can’t match on like-for-like widths.
Everyday Access With a Traffic Door
Many OB-72 layouts include a hinged traffic door for quick in-and-out use without folding the whole set—ideal for daily life.
Engineered Aluminium Advantage
Strong aluminium frames with polyamide thermal breaks for energy efficiency and low maintenance. Secure 8-point locking with PAS 24 available; upgrade to a 3-Star Diamond cylinder for enhanced protection.
More Versatile Than French Doors
Cover wider spans with multiple panels, choose centre-opening sets, and pick thresholds to suit the setting—all while keeping the classic 72 mm look and optional woodgrain finishes for period styling.
Introducing the all-new OS-29+
Experience the next generation of slimline design with the OS-29+.
Featuring enhanced thermal efficiency, flush stacking and refined aesthetics, the OS-29+ delivers in both style and performance for the long-term.
Speak to us about this range!
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