Is a storm screen included?

An integrated sliding screen track is available on both slider and fixed panes.

How heavy can one leaf get?

About 150 kg per leaf on the standard track; above that the position moves to the LS-60 lift-slide, which lifts the panel before it glides.

Do fixed panels need to match the sliders?

Yes — same face width, same finish, same gasket line, so the wall reads as one glazing unit with some leaves that move.

Can a screen be added to an installed set later?

The track is detailed with a screen channel at design stage; retrofitting is possible on 3- and 4-track sets and easier when specified from day one.

SD-50 Sliding Patio Doors

2, 3 or 4-track sliding · fixed panels between sliders

Sliding glass wall with a clear opening to a forested terrace

SD-50

The everyday patio wall — two to four tracks with fixed glazing between.

2, 3 or 4-track sliding · fixed panels between sliders

Configurations

Glazing options

Lead time

30–40 days

Warranty

15 yr

Both documents are free — quoted against your project within 24 hours.

SD-50 frame section, thermal-break build. Photographed section, hardware and installation detail below.

Read the section

High-end custom is decided in the section drawing, not the brochure. These four layers are held to specification on every SD-50 unit we ship.

6063-T5 multi-chamber frame

Extruded alloy with internal chambers for stiffness without weight.

PA66 thermal-break bar

Glued and bonded polyamide isolation, continuous across the build.

EPDM double gasket

Two replaceable compression lines for air and water tightness.

Hardware & fixing

Concealed fixing with continuous drainage.

Technical detail

The section, the hardware and the fixings — photographed, not rendered. This is the level of detail your drawing office specifies against and your site crew installs to, on every unit that leaves the line.

Profile cross-section

Multi-chamber 6063-T5 extrusion with a continuous PA66 thermal-break bar. The section is where stiffness, insulation and drainage are decided in one drawing — and the four values in the performance band above are read straight off it.

Alloy

6063-T5, multi-chamber

Thermal break

PA66 polyamide, continuous

Gasketing

EPDM, two replaceable lines

Drainage

Concealed, positive slope

Frame profile — three internal chambers give the stiffness without the weight.

Thermal break bar visible in the window frame cross section — The continuous PA66 break bar isolates the outer and inner aluminium.

Window frame corner joint with glazing and gasket line — Corner joint with the glass pack in place — one continuous gasket line, concealed drainage.

The polyamide bridge breaks the conductive path that would otherwise run across the frame.

Door sections on the same platform, sized for the leaf load and the threshold.

Thermal break bar detail on the extrusion line — Thermal break bar, second detail — continuous PA66 from the extrusion line.

Hardware

Pre-fitted and function-checked on every sash before it leaves the line. Multi-point locking, key-operated handles and marine-grade sets are scheduled per project and listed in the hardware schedule that ships with the shop drawings.

Locking

Multi-point, per sash

Handle

Key-operated option

Finish

Marine-grade available

Check

Cycled at the factory

Multi-point locking bolt points on a door leaf edge — Multi-point locking — the handle drives bolt points top, bottom and on the meeting stile, not one edge.

Window handle with base plate and strike set and fixing screws — Handle, base plate and strike set — the full set, fitted and cycled before dispatch.

Black window handle with key cylinder — Key-operated handle for ground-floor and security specifications.

Chrome finishing aluminium window handle — Chrome finish for clean, high-traffic interior positions.

Window handle and strike plate with fixing hardware — Strike and fixings match the handle set; nothing is improvised on site.

Black multi-point lock set on a timber interior — The same locking discipline on the wood-aluminium interior line.

Installation

Factory-assembled and pre-glazed, so the tolerance work is done under a roof. On site the build is a three-zone detail — air, insulation, weatherproofing — and every crate arrives with the install guide and the sealant schedule for that market.

Arrives

Factory-assembled

Detail

3-zone: air / insulation / water

Guide

Per-crate install sheet

Sealant

Scheduled per market

Powder-coating line for the glazed sash units before packing — Every glazed unit runs the full pre-treatment and powder-coat line before it leaves the shop.

Surface pre-treatment line ahead of the powder-coating booths — Pre-treatment and powder coat — every profile runs the surface line before assembly.

Water penetration test — the spray rig running on a glazed unit at the quality gate — The test rig — air, water and cycle spot tests at the quality gate, before crating.

Worker hand-finishing a door leaf — wiped down and checked before packing — Every door leaf is finished by hand — sanded, checked and wiped down before packing.

Overview

A sliding patio door is a horizontal-glide door in which leaves run on concealed rollers over a low-profile track, with fixed glazing between them wherever the design wants it. SD-50 runs 2 to 4 tracks, panels up to 1,100 × 2,600 mm, with anti-lift pins and a central multi-point lock — the everyday patio wall for warm-climate markets.

A precision-sliding system with concealed rollers and a low-profile track, configured from 2 to 4 tracks with fixed panes wherever the design needs them. Leaves carry up to 150 kg each on anti-lift pins, and a central multi-point lock secures every leaf in the set.

The track is detailed with drainage and a screen channel at design stage, so the wall is finished the way the site will live with it. Fixed bays and sliders share one face width and one gasket line — the whole wall reads as a single glazing unit with some leaves that move.

SD-50 installed view — SD-50 — Sliding Patio Doors

Models

Every SD-50 ships as one of the configurations below — specify by model code in your window schedule and it quotes line by line.

SD-50 2T

Two-track, 1 sliding + 1 fixed
8–20 mm tempered or IGU

SD-50 3T

Three-track, 2 sliding + fixed
8–20 mm IGU

SD-50 4T

Four-track, 2 sliding + 2 fixed
8–20 mm IGU

SD-50 SCREEN

Integrated screen track, both leaves
Fibreglass or stainless mesh

SD-50 configurations in place — SD-50 — configurations in place

Specifications

Tracks: 2, 3 or 4, overlapping or parallel
Panel size: Up to 1,100 × 2,600 mm per leaf
Track: Flush interior, drainage integrated
Glazing: 8–20 mm, tempered or IGU, screen option
Security: Anti-lift pins, central multi-point lock
Standards: Tested to EN 14351-1, EN 13830

SD-50 — profile and glazing detail

Material & craft

The layers held to specification on every SD-50 unit — the section drawing above, written out.

Track & rollers

Concealed rollers on a low-profile, flush interior track — 2 to 4 tracks, overlapping or parallel, with drainage built in.

Leaves

Panels up to 1,100 × 2,600 mm with anti-lift pins on every leaf and a central multi-point lock where the leaves meet.

Screen pairing

The integrated sliding screen track runs both leaves — fibreglass or stainless mesh — so the opening stays open in the rainy season.

What it's worth to you

Panoramic fixed glazing installed across a modern house elevation

The everyday patio wall: one leaf moves, the rest stays glazed, and the threshold stays walkable.

Fixed panels take the party-wall load on townhouse elevations — the slider takes the view.

Paired with the SC-40 range it is the tropical specification: open window, screened out, same platform as the fixed wall.

Where it is specified

The sites we build this system for, and what the schedule changes in each one.

Warm-climate patios

The default garden wall — one leaf slides, the rest stays glazed.

Townhouse side elevations

Fixed panels take the party-wall load; the slider takes the view.

Balcony access

Low-profile track keeps the threshold walkable.

Retail frontages

Wide fixed bays with a single service leaf.

Tropical ventilation

Pair with the SC-40 screen so the opening stays open in the rainy season.

Options

Glass

8–20 mm, tempered or IGU, screen option

Finish

Anodised Natural

Anodised Silver

Anthracite · RAL 7016

Graphite · RAL 7024

Jet Black · RAL 9005

Traffic White · RAL 9016

Cream · RAL 1015

Champagne · RAL 1019

Ash Natural

Walnut Dark

Bronze

Copper

View all finishes

Design features

Concealed rollers, low-profile track

2, 3 or 4 tracks, overlapping or parallel

Anti-lift pins on every leaf

Central multi-point lock

Integrated sliding screen track option

Flush interior track, drainage built in

Gallery

Frequently asked

Sliding carries up to ~150 kg per leaf on a lower track; lift & slide lifts the panel first and carries 300 kg — for wider openings we move up to lift & slide.