Stacking Door Systems

Wide Span Opening & Panel Stacking

Aluminium stacking door systems delivering wide opening spans and clean sightlines for architectural, hospitality and commercial applications.

Stacking door systems occupy a distinct position between sliding and bi-fold systems — panels slide horizontally and stack behind a fixed panel or into a wall pocket, providing a wider clear opening than a standard sliding door without the folding mechanism of a bi-fold system. This makes stacking doors well suited to applications where a wide, unobstructed opening is desired but the ceiling or structural conditions don’t support a top-hung bi-fold track, or where a cleaner, more linear aesthetic is preferred over the folded panel stack of a bi-fold system. Hunter Windows supplies and installs stacking door systems from the AWS Elevate range, available in configurations to suit opening width, panel count and performance requirements.

Typical Applications

Stacking door systems are commonly specified across:

Architect-designed homes with wide indoor-outdoor living connections
Hospitality venues and restaurants requiring wide open frontages
Commercial and retail spaces with flexible open facades
Multi-residential common areas and amenity spaces
Entertainment and function spaces with wide opening requirements
Applications where bi-fold ceiling track is structurally or aesthetically unsuitable
Wall pocket applications where panels stack fully out of sight when open

Key Performance Considerations

System selection should account for:

Opening width and panel count — stacking systems can accommodate multiple panels across wide openings; panel count and stacking direction should be determined early in the design process
Panel size and weight — individual panel dimensions and glass weight affect roller and track performance; maximum panel sizes vary by series
Wall pocket requirements — where panels are required to stack fully out of sight, wall pocket dimensions must be coordinated with the structural and architectural design; early confirmation of pocket width and depth is essential
Weather resistance — stacking systems in exposed locations require careful consideration of panel sealing, track design and threshold detailing; series selection should reflect exposure conditions
Thermal performance — U-value and SHGC ratings vary across series; large stacking door openings have a proportionally significant impact on building energy performance
Hardware and operation — roller and track quality directly affect ease of operation across multiple panels; heavy-duty hardware options are available for larger panel weights
Threshold design — low-profile and flush threshold options improve accessibility and reduce trip hazard risk; threshold selection affects structural connection and finished floor level relationship
Security — locking configuration across multiple sliding panels requires careful consideration; series selection should reflect project security requirements

Available Range

442 Commercial Stacking Sliding Door (100mm Framing)

Commercial Stacking Sliding Door (100mm Framing)

Strength, security, and beauty
Two and three-panel configurations for optimized views
90° corner opening configuration for uninterrupted transition to the outdoors
High-performance rollers for smooth, quiet operation
Complies with Australian air-conditioning standards for better energy performance and comfort
Tested for water resistance to 450Pa, suitable for use in all Australian environments
Compatible with external sliding fly screen doors

Maximum Frame Height*	2700mm
Maximum Panel Width*	1350mm
Maximum Glass Thickness	≤20mm

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.

Brochure

Full Technical Specifications (AWS)

Certified

642 Commercial Stacking Sliding Door (150mm Framing)

Commercial Stacking Sliding Door (150mm Framing)

150mm commercial framing
High-performance, whisper-quiet rollers
Three panel configurations, including 90° corner opening
Compatible with external sliding fly screen doors
Compliant with Australian air-conditioning standards for better energy performance and comfort
Tested for water resistance to 450Pa

Maximum Frame Height*	2700mm
Maximum Panel Width*	1200mm
Maximum Glass Thickness	≤20mm
SHGC Range	0.22-0.67
Uw Range	3.2-6

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.

Brochure

Full Technical Specifications (AWS)

Certified

852 Thermally Broken Door System

Thermally Broken Door System

Minimizes heat or cold transfer
Excellent energy efficiency
Ideal for commercial and high-end residential applications
Heavy-duty bottom rolling stainless steel bearings or Centor top-hung rollers
Flexible design options for single sliding door, stacking sliding door, hinged door, or pivot door
Compatible with Centor Eco Screen retractable flyscreen

Maximum Frame Height*	2800mm
Maximum Panel Width*	2500mm
Maximum Glass Thickness	≤28mm
SHGC Range	0.16-0.45
Uw Range	2.6-3.4

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.

Brochure

Full Technical Specifications (AWS)

Certified

618 MAGNUM™ Stacking Sliding Door

MAGNUM™ Stacking Sliding Door

Clean lines, strength, and bold styling
Up to four panels in each direction, spanning up to 12 meters
Panels up to three meters high
A range of standard or high-performance sills
Can be recessed into a slab for a flush threshold
Ideal for areas with high winds or heavy rain
Can be configured as a 90° corner pull-away door, or with a cavity slide option
Accepts single or double glazing
Heavy-duty rollers for smooth operation

Maximum Frame Height*	3000mm
Maximum Panel Width*	2000mm
Maximum Glass Thickness	≤24mm
SHGC Range	0.22-0.67
Uw Range	3.0-6.2

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.

Brochure

Full Technical Specifications (AWS)

Certified

542 Residential Stacking Sliding Door

Residential Stacking Sliding Door

Wide-opening door for patios and decks
Three-panel door opens to two-thirds of its width
Bi-parting option spans up to eight meters
Seamless connection to the outdoors
Great for ventilation
Flyscreens tuck neatly into the door
Unused tracks are filled to keep the door sill clean
Single or double glazed
Heavy-duty rollers for smooth operation

Maximum Frame Height*	2700mm
Maximum Panel Width*	1350mm
Maximum Glass Thickness	≤20mm
SHGC Range	0.21-0.72
Uw Range	3.0-6.2

*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.

Brochure

Full Technical Specifications (AWS)

Certified

Hardware Options

ANDO™

Developed to complement the modern design and clean lines of the Architectural Series, the ANDO™ range brings a fresh and sleek look to residential or commercial windows and doors.

ICON™

The ICON™ hardware range is a fully integrated range of 316-grade stainless steel hardware for aluminium windows and doors offering superior weathering performance.

MIRO™

MIRO™ Hardware offers a stunning blend of contemporary design, function and durability incorporating comfortable ergonomics and beautiful aesthetics to provide ease of use across all ages.

Energy Performance & Thermal Ratings

Stacking door systems are WERS rated, providing verified U-value and Solar Heat Gain Coefficient (SHGC) data for use in NCC energy compliance calculations and thermal modelling.

Key energy performance factors for specification:

U-value — measures the rate of heat transfer through the door assembly; lower values indicate better thermal insulation across wide glazed opening spans
SHGC — measures solar heat gain through the glazing; particularly relevant for wide stacking door openings on north and west-facing facades where solar exposure across a large glazed area is significant
Glazing selection — performance outcomes vary significantly with glass type; double glazing, low-e coatings and laminated options are available across the range
ThermalHEART series — thermally broken aluminium frames reduce heat transfer at the frame, improving overall system U-values for projects with elevated energy performance requirements

SHGC and U-value ranges for each series are shown in the Available Range section above. For detailed energy performance data and climate zone guidance, see our WERS & Energy Performance and Thermally Broken Frames resource pages.

Integration

Stacking door systems integrate across facade, sector and specification decisions:

Facade Solutions — commonly used within commercial framing and shop front assemblies where wide opening spans are required; an alternative to bi-fold systems where overhead track or folding panel aesthetics are not preferred
Sectors — most commonly specified in architectural homes and retail and hospitality environments; also applicable in multi-residential common areas where wide opening spans and clean sightlines are design priorities
Specification — glass selection, colour finishes, hardware and threshold options are all configurable; wall pocket requirements should be confirmed early with the structural and architectural team; refer to the Specification section for detail on available options

Frequently Asked Questions

Stacking doors slide horizontally like sliding doors but accommodate multiple panels that stack behind a fixed panel or into a wall pocket, providing a wider clear opening than a standard two-panel sliding system. Unlike bi-fold doors, panels do not fold — they remain upright and slide, which produces a cleaner linear aesthetic and avoids the need for a top-hung folding track. Stacking systems sit between sliding and bi-fold in terms of clear opening width and system complexity.

A wall pocket is a cavity within the wall construction that allows stacking door panels to slide fully out of sight when open. Wall pockets maximise the clear opening width and produce a seamless indoor-outdoor connection when the doors are fully open. They require early coordination between the glazing supplier, architect and structural engineer to ensure pocket dimensions, head clearance and structural support are correctly designed.

Series selection and threshold design are important considerations in exposed locations. Weather resistance performance varies across the range and track and threshold detailing is critical in coastal or wind-driven rain environments. Our team can advise on appropriate series and detailing for specific exposure conditions.

Both systems can provide wide clear openings, but they differ in mechanism, aesthetic and structural requirements. Bi-fold systems clear the full opening width by folding panels to the side but require a top-hung track and produce a stacked panel bundle at the edge of the opening. Stacking systems slide panels behind a fixed panel or into a wall pocket, producing a cleaner edge condition but requiring additional wall width or pocket space. The choice between systems depends on structural conditions, aesthetic preferences and opening width requirements.

Yes. Our team can advise on suitable series, panel configurations and wall pocket requirements for stacking door applications. Early engagement is recommended to ensure pocket dimensions and structural requirements are incorporated into the building design. Upload drawings or contact us to discuss your project.

For stacking door system selection, wall pocket coordination or to submit drawings for review, our team is available to assist.

Upload Plans / RFQ

Contact Technical Team

Our Projects

View All Projects

Shearwater Industrial

This industrial unit complex located within the Shearwater Business Park at Taylors Beach contains 13 industrial units spanning in size from 121m2 – 160m2.

Hunter Windows ONE Apartments Newcastle West

ONE Apartments

Client: GWH
Duration: June 2024 – September 2025

Hunter Windows manufactured, supplied and installed a complete glazing package for ONE Apartments, a dual-tower residential development located in Newcastle West.

The scope incorporated extensive glazing systems across both towers and podium levels, totalling 9,116m³ of glazing and 3,697 individual glass panels.

Key inclusions:

Podium Levels (GF–L3): Shopfronts, sliding and hinged doors, fixed glazing, and awning windows for commercial and residential areas
South Tower (L4–L19 + Roof): Mixture of sliding doors, fixed glazing, hinged doors and awning windows
North Tower (L4–21 + Roof): Mixture of sliding doors, fixed glazing, hinged doors and awning windows
Winter Gardens: Fixed glazing and Safetyline Jalousies

Comprehensive design and compliance processes included:

372 shop drawings prepared to document the project
349 QA ITPs completed to verify installation quality
Water testing completed in conjunction with façade consultant Indesco and third-party testing to ensure design compliance and watertightness

Aluminium stacking door systems delivering wide opening spans and clean sightlines for architectural, hospitality and commercial applications.

Typical Applications

Key Performance Considerations

Available Range

442 Commercial Stacking Sliding Door (100mm Framing)

Certified

642 Commercial Stacking Sliding Door (150mm Framing)

Certified

852 Thermally Broken Door System

Certified

618 MAGNUM™ Stacking Sliding Door

Certified

542 Residential Stacking Sliding Door

Certified

Hardware Options

ANDO™

Developed to complement the modern design and clean lines of the Architectural Series, the ANDO™ range brings a fresh and sleek look to residential or commercial windows and doors.

ICON™

The ICON™ hardware range is a fully integrated range of 316-grade stainless steel hardware for aluminium windows and doors offering superior weathering performance.

MIRO™

MIRO™ Hardware offers a stunning blend of contemporary design, function and durability incorporating comfortable ergonomics and beautiful aesthetics to provide ease of use across all ages.

Energy Performance & Thermal Ratings

Integration

Frequently Asked Questions

Our Projects

Shearwater Industrial

ONE Apartments

Hunter Windows (DEV) 6/52 Bonville Avenue Thornton NSW 2322

Hunter Windows (DEV)
6/52 Bonville Avenue
Thornton NSW 2322