Aluminum bi-fold patio doors fold connected leaves to one or both sides of an opening. Plan the parked panels, track and threshold before choosing a panel count or a broad visual opening.
What to resolve before choosing a design
| Decision | Information to confirm |
|---|---|
| Stacking area | Allow for the parked leaves and their effect on the usable opening. |
| Threshold interface | Review level changes, drainage and exposure with the installer. |
| Glazing and hardware | Check the selected glass, leaf size and running system together. |
Configuration and material choices
The requested opening, traffic leaf and stacking direction must be clear on the drawing. Performance evidence must match the proposed assembly where required.
Record frame material, leaf or panel construction, visible surface, glazing and hardware as separate specification fields. This prevents a finish name from being mistaken for the underlying construction. Each alternative should be checked against the same opening and intended use.
Coordinate folding direction and the parked stack
An aluminium bi-fold patio arrangement needs an opening diagram showing panel count, the active access leaf if provided, and where the folded stack sits. Compare the fully open clear passage with the everyday access position. Show adjacent walls, furniture and circulation routes so the parked panels do not create an unexpected obstruction.
Resolve the head support, sill level and external drainage with the project team. The visual preference for a minimal threshold should be reviewed against exposure and the applicable project requirements. Ask which frame, glass, hardware and sealing components are included and how the panels will be delivered. Large glazing and multi-panel assemblies require an agreed handling and installation sequence before the site finishes are fixed.
Compare bifold and sliding patio doors
Bifold patio doors fold a connected set of glazed leaves; sliding systems move panels along tracks. Compare the parked stack with the overlap of a sliding patio door before choosing either arrangement. Folding glass doors is a broader description, so identify exterior patio use explicitly. Australian briefs often call this system aluminium bifold doors.
For a detailed movement comparison, read bifold vs sliding patio doors and use the same opening and circulation brief for both options.
Evidence and installation boundaries
Specification limits, material availability and performance documentation are subject to technical review. A material or component report is not automatically evidence for the complete door or window assembly. Tell us about the project requirements early so the applicable configuration can be assessed.
Installation must follow the agreed drawings and the actual product instructions, with responsibilities assigned to competent people. This collection is a selection resource, not a substitute for a product-specific installation manual.
Plan the next step
Explore Patio Door Systems for the related project task.
Explore Door Packages for Builders for the related project task.
Explore Door Quality & Project Requirements for the related project task.
Send your project brief with opening sizes, quantities and the documents already available.
Before you specify
Questions worth asking
Can the size and finish be customized?
Share the opening dimensions, intended use and preferred finish. Feasibility, material availability and the final configuration are subject to technical review; no universal size range is assumed.
What should I send for a quotation?
Send a marked drawing or door schedule, project country, quantity, installation context and any specified performance requirements. Identify which hardware and glazing you need included.
Are the images confirmed product specifications?
The images illustrate design and finish options. Your written quotation, approved drawings and material samples define the final configuration and supply scope.
