Bi-fold door systems are specified where the full width of a glazed opening needs to be cleared — panels fold and stack to one or both sides, creating an unobstructed connection between interior and exterior spaces. This makes bi-fold doors a defining feature in architect-designed homes, hospitality venues, and commercial spaces where flexible opening of large glazed facades is central to the design intent. Unlike sliding doors which leave a portion of the opening occupied by panels at all times, bi-fold systems can open the entire width of the frame when fully folded. Hunter Windows supplies and installs bi-fold door systems from the AWS Elevate range, available in configurations to suit opening width, panel count, threshold requirements and performance specification.
Bi-fold door systems are commonly specified across:
System selection should account for:
FoldMASTER™ Bi-fold Door
| Maximum Frame Height* | 3000mm |
| Maximum Panel Width* | 1000mm |
| Maximum Glass Thickness | ≤28mm |
| SHGC Range | 0.14-0.59 |
| Uw Range | 3.3-6.2 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
ViewMASTER™ Bi-fold Door
| Maximum Frame Height* | 3000mm |
| Maximum Panel Width* | 1000mm |
| Maximum Glass Thickness | ≤28mm |
| SHGC Range | 0.14-0.59 |
| Uw Range | 3.3-6.2 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
ViewMASTER™ Bi-fold Door (bottom rolling)
| Maximum Frame Height* | 3000mm |
| Maximum Panel Width* | 1000mm |
| Maximum Glass Thickness | ≤28mm |
| SHGC Range | 0.14-0.59 |
| Uw Range | 3.3-6.2 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
ThermalHEART™ Bi-fold Door (Top Hung)
| Maximum Frame Height* | 3000mm |
| Maximum Panel Width* | 1000mm |
| Maximum Glass Thickness | ≤28mm |
| SHGC Range | 0.21-0.5 |
| Uw Range | 2.3-3.3 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
ThermalHEART™ Bi-fold (Bottom Rolling)
| Maximum Frame Height* | 3000mm |
| Maximum Panel Width* | 1000mm |
| Maximum Glass Thickness | ≤28mm |
| SHGC Range | 0.21-0.5 |
| Uw Range | 2.3-3.3 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
High Performance Bi-fold Door
| Maximum Frame Height* | 2600mm |
| Maximum Panel Width* | 900mm |
| Maximum Glass Thickness | ≤20mm |
| SHGC Range | 0.17-0.57 |
| Uw Range | 3.4-6.1 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
Thermally Broken Bi-fold Door
| Maximum Frame Height* | 2600mm |
| Maximum Panel Width* | 900mm |
| Maximum Glass Thickness | ≤32mm |
| SHGC Range | 0.18-0.52 |
| Uw Range | 2.2-5.1 |
*Maximum Frame Height and Panel Widths indicated are interdependent and subject to individual site conditions.
Bi-fold 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:
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.
Bi-fold door systems integrate across facade, sector and specification decisions:
Bi-fold doors fold and stack to one or both sides of the opening, allowing the entire width of the frame to be cleared when fully open. Sliding doors operate horizontally within the frame but always occupy a portion of the opening width. Bi-fold systems are the preferred choice where maximum open width and unobstructed indoor-outdoor connection are the primary design intent.
Panel count depends on the opening width, individual leaf dimensions and the specific series. Bi-fold systems can typically accommodate configurations from two panels upward, stacking to one side or both. Our team can advise on suitable configurations for a given opening width and structural conditions.
Series selection and threshold design are both important considerations in exposed locations. Weather resistance performance varies across the range and threshold detailing is critical in coastal or wind-exposed environments. Our team can advise on appropriate series and threshold options for specific exposure conditions.
Top-hung systems support panel weight from an overhead track, leaving the floor track minimal or flush and improving accessibility. Bottom-rolling systems use a floor track to carry panel weight, which can be more economical but introduces a floor-level obstacle. Top-hung systems are generally preferred in hospitality, aged care and high-use applications where accessibility and floor finish continuity are priorities.
Yes. Our team can review opening dimensions, structural conditions, accessibility requirements and usage intent to recommend suitable panel configurations, stacking arrangements, threshold options and series. Upload drawings or contact us to discuss your project.
For bi-fold door configuration advice, threshold options or to submit drawings for review, our team is available to assist.
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