Origin Sliding Doors

A complete sliding door range designed to suit every project — from ultra-slim, glass-first aesthetics to more robust, traditional patio door styles. Built in the UK and made bespoke, Origin sliding doors give you a clear choice depending on sightlines, performance and budget.

Three sightlines. Four systems. One clear choice.

Origin’s sliding door range is built around one key decision: sightlines. The system is available in 29mm, 44mm and 77mm interlocks — allowing you to balance glass, structure and performance. :contentReference[oaicite:0]{index=0}

  • OS-29 / OS-29+ – ultra-slim, glass-first design
  • OS-44 – balanced modern slider
  • OS-77 – robust, traditional patio system

OS-29 & OS-29+

Maximum glass. Minimal frame.

The OS-29 is designed around a 29mm sightline, making it one of the slimmest inline sliding doors available. It shares the same core structure as the wider systems but strips back the central mullion to maximise glass.

The updated OS-29+ improves on the original with redesigned profiles and significantly enhanced thermal performance, making it far more suitable for modern regulations. It is also available as part of Origin’s Soho Collection, featuring steel-look horizontal bars for customers wanting that industrial-style appearance to match the rest of their glazing.

  • 29mm ultra-slim interlock
  • Best option for uninterrupted views
  • Improved thermal performance on OS-29+
  • Ideal for contemporary extensions

Best for: Projects where the view matters more than anything else.

OS-44

The balance between slim and practical.

The OS-44 offers a 44mm sightline, giving a noticeable increase in strength while still maintaining a modern, slim aesthetic.

It shares the same engineering and hardware as the OS-77 but with a reduced mullion size, making it a strong all-rounder for most residential projects.

  • 44mm interlock for balance of strength and style
  • Same core system as OS-77 with slimmer appearance
  • Smooth sliding with advanced roller systems
  • Suitable for most openings and budgets

Best for: Everyday projects where you want slim sightlines without pushing to the extreme.

OS-77

Traditional look. Maximum strength.

The OS-77 features a 77mm sightline, giving a more substantial frame appearance while still delivering large glazed openings.

It’s built for durability and performance, with strong aluminium construction, multi-point locking and excellent thermal capability.

  • 77mm interlock for strength and rigidity
  • U-values as low as 1.3 W/m²K
  • PAS 24 security available
  • Large panel sizes and configurations

Best for: Larger openings, traditional properties, or projects where strength is key.

Which Origin sliding door is right?

  • Want the slimmest possible look? → OS-29+
  • Want a balance of looks and practicality? → OS-44
  • Want strength and a traditional feel? → OS-77

All systems use premium aluminium frames, multi-point locking and are manufactured in the UK with long guarantees.

Why installers choose Origin sliding doors

  • Clear product ladder makes matching your clients' needs easier
  • One manufacturer across full project (doors + windows)
  • Reliable UK manufacturing and lead times
  • Strong brand recognition with homeowners

Whether you’re quoting against bifolds or other sliders, the Origin range gives you a clear, structured alternative for every job.

Need help choosing the right system?

We’ll help you decide which Origin sliding door fits your project — and make sure you’re quoting the right system first time.

Speak to the Team