Origin OS-44 Sliding Patio Doors
A perfect balance of slim aesthetics and robust strength
Slimline Design With Balanced Performance
The Origin OS-44 Sliding Patio Door features a 44mm sightline that offers the perfect balance between slim aesthetics and robust strength. It maximises natural light and delivers wide, uninterrupted views while providing a slightly more substantial frame profile for added presence. Precision-engineered in the UK, the OS-44 is a stylish, durable, and versatile choice for modern living spaces.
*For the OS-44, U-Values as low as 1.3 W/m²K can be achieved with triple glazing and specific configurations. Actual performance will vary depending on glass type, door size, and installation. Please speak to us for tailored advice on the best setup for your project.
British Engineering Excellence
Designed and manufactured in the UK by Origin, ensuring exceptional quality and supporting British craftsmanship.
Premium-Grade
Aluminium
High-grade insulated aluminium with a durable powder-coated finish for lasting performance and weather resistance. Low-maintenance frames only require routine cleaning with mild soapy water.
Advanced Thermal Performance
Achieves U-Values as low as 1.3 W/m²K with triple glazing, exceeding UK Building Regulation requirements. Polyamide thermal breaks and advanced weather seals help keep your home warm in winter and cool in summer.
Sophisticated
Hardware
Precision-engineered hardware with concealed rollers ensures a smooth, quiet sliding action. Self-levelling rollers automatically adjust for effortless operation every time.
Ultra-Secure
Locking
Multi-point locking system with PAS 24 certification and a high-security cylinder. Internal glazing beads prevent glass removal from the outside, ensuring maximum protection.
High-Performance
Glass
Toughened safety glass as standard with low-emissivity coating, warm edge spacer bars, and argon gas fill. Optional upgrades include laminated security glass, integral blinds, and acoustic glazing.
Completely
Bespoke
Every OS-44 door is made to order. Choose from over 150 RAL colours, a variety of handle designs, and multiple configuration options — all tailored to your exact requirements.
OS-44 Configuration Options
Available in two, three, four, or six panel configurations, the OS-44 can be tailored to suit any space with a mix of sliding and fixed panels. Doors can be designed to open from the left, right, or centre, depending on your preference. Two and three panel layouts allow flexible opening directions, while four and six panel options can create a striking centre-opening design with bi-parting operation.
Two Panel Configuration
Available with both panels sliding or one sliding, one fixed. Single track system provides 50% clear opening when open. Panels can slide in either direction (left or right) depending on your space requirements and preferred operation.
Three Panel Configuration
Multiple track system offering various sliding combinations. Can be configured with one fixed panel and two sliding panels, or three sliding panels. Sliding panels stack to either left or right side, providing up to two-thirds opening. Ideal for larger apertures.
Four Panel Configuration
Double track system with center-opening design. Two outer panels remain fixed while two center panels slide outward in opposite directions. Opens from the middle for balanced operation and optimal accessibility from both sides.
Six Panel Configuration
Triple track system with center-opening configuration. Four outer panels remain fixed while two center panels slide outward from the middle. Maximum glass area up to 6.6m wide with large central opening for maximum impact.
OS-44 Sliding Door Specifications
Spec | OS-44 |
|---|---|
Construction | Premium-grade insulated aluminium |
Manufacture Origin | United Kingdom |
Insulation | U-Value as low as 1.3 W/m²K with triple glazing |
Glazing | 28mm, 32mm or 36mm glass units available. Semi-dry glazed system |
Glazing Thickness | Up to 36mm thick |
Triple Glazing | Available |
In-glazed blinds | Optional between glass units |
Trickle Vents | Optional via 50mm add-on profile |
Frame Finish | Over 150 RAL colours available. 7 popular colours on 24-hour lead time |
Handle Finish | Stainless steel, white, black or bronze finish. Three handle options available |
Panel Width | Up to 2200mm (2.2m) wide |
Panel Height | Up to 2520mm (2.52m) tall |
Maximum Panel Area | Individual panels cannot exceed 5.04m² (not 6m²) |
Maximum Aperture Width | Up to 6.6m wide (up to 11.9m for larger configurations) |
Mullion Sightline | 44mm (slimline profile) |
Panel Configurations | 2, 3, 4 or 6 panels available |
Operation Type | Inline sliding (push-pull action) |
Security Rating | Multi-point locking system with 6 points of locking (PAS 24 available on OS-29 & OS-77 models) |
Track System | Double track (143mm depth) or triple track (213mm depth) |
Maximum Sash Weight | 200kg |
Warranty | Up to 10-year guarantee |
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 handle options designed to complement the sleek aesthetics of your OS-44 sliding doors.
All-in-One Handle
12″ streamlined lock and handle with thumbturn in stainless steel finish. Available across all sightlines for a clean, integrated look.
Architectural Bar Handle
Crafted from premium-grade aluminium for durability and a modern look. Combined with thermal breaks and high-performance glazing, Origin doors deliver excellent energy efficiency while staying slim, strong, and low-maintenance.
Offset Bar Handle Option
500 mm offset bar for extra leverage and fingertip control, paired with a separate high-security lock (thumbturn). Available on OS-44 in stainless, black, white, or bronze finishes.
Marine-Grade Hardware
All hardware uses marine-grade 316L stainless steel with equally advanced fixings for long-lasting performance in all weather conditions.
Key Features & Benefits
The Origin OS-44 balances slim 44 mm sightlines with robust performance. Precision-engineered in the UK, it maximises natural light and delivers a smooth, secure sliding experience—pairing contemporary design with proven reliability.
Slimline 44 mm Mullion
Refined 44 mm sightlines give a bright, open feel while retaining a reassuringly solid frame presence.
Smooth Slide Operation
Concealed running gear and perfectly weighted bearings deliver a quiet, effortless glide—day after day.
Enhanced Thermal Efficiency
Thermally broken aluminium, comprehensive weather seals, and high-performance glazing help keep heat in during winter and out in summer. U-Values as low as 1.3 W/m²K with triple glazing.
Durable Powder-Coated Finish
High-grade powder coating cured for a tough, smooth surface that resists weathering. Choose from 150+ RAL colours, with 7 popular finishes on fast lead times.
High-Security Locking
Robust multi-point locking and high-security cylinders engineered to resist common attack methods—keeping your home protected. PAS 24 available on OS-29 & OS-77.
British Manufacturing
Designed, engineered, manufactured and supported in the UK for consistent quality and dependable lead times.
Why Choose Origin OS-44 Over Other Systems?
The OS-44 Sliding Patio Door pairs slim 44 mm sightlines with smooth inline operation—offering practical advantages over bifold, French, and lift-and-slide setups.
Cleaner Views Than Bifold Doors
Unlike bifolds that fold and stack into the opening, the OS-44 slides within its track, preserving floor space and keeping wide views clear whether open or closed.
Engineered Aluminium Advantage
Premium-grade aluminium delivers slim, strong profiles for large panes. Polyamide thermal breaks and high-performance glazing provide excellent energy efficiency with low maintenance over time.
Wider Spans Than French Doors
Large glass panels and centre-opening options create broader clear openings with fewer vertical interruptions than typical hinged French sets, while modern weather seals help keep the elements out.
Simpler Than Lift & Slide
A straightforward inline sliding mechanism—no lift cams or complex gearing—means easy, reliable operation and a smooth, quiet glide with minimal upkeep.
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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