Doors
Bifold Patio Doors
Bifold patio doors are made of hinged panels that fold back against each other, concertina-style, and stack to one side of the opening. Unlike a slider, a bifold clears almost the entire aperture — when it is fully folded, very little remains in the opening.
Custom-fabricated in aluminum to your openings, with slim flush hinges between panels and a concealed running track. Panels can stack left, right or split to both sides.
How bifold doors work
Hinged panels fold back like a concertina and stack to one side.
Decide the stack side early — panels can gather left, right, or split to both sides, and that choice affects both the elevation and what furniture can sit beside the opening. A traffic door can also be built into the run, so one panel opens conventionally for everyday use without folding the whole set back.
Specifications
Performance depends on glazing build-up and size. These are the ranges for this configuration.
U-factor
SHGC
Acoustic
Water penetration
Wind load
Sightlines from
Frame depths
Glazing
Spans
Warranty
Glazing
Configuration
Coatings and fill
Glass thickness
Grids
Spacer
Frame sealing
Triple glazing is available across the range. On very large panels we confirm the configuration per project.
Hardware
Premium-grade multi-point locking hardware, OEM-verified at receiving on every shipment.
Certification
NFRC certified · SGCC/IGCC certified glass · Tempered glass · ISO 9001 manufacturing
Finishes
Two coating systems, the full RAL range in both, and a different colour inside and out if you want one.
Standard
Powder coating
Baked-on polyester, electrostatically applied and oven-cured. The standard finish on most projects and the right choice inland and in the mountains.
Full RAL range
Matte, satin and textured
Hard, scratch-resistant surface
Good colour retention
Upgrade
PVDF
A fluoropolymer coating specified where exposure is severe — coastal salt air, intense UV, or an elevation that takes weather all day. Markedly better resistance to fading and chalking than polyester.
Full RAL range
Superior UV and fade resistance
Resists chalking and salt-air corrosion
Specified for coastal and high-exposure work
Any unit can be finished in one colour on the interior face and another on the exterior. A warm interior tone against a dark exterior is the most common request — it lets the window match the room without fighting the elevation. Dual-colour changes nothing about thermal or structural performance.
Where bifold works best
Opening a wall completely
Where the brief is to remove the boundary between inside and out, nothing clears more of the aperture.
Indoor–outdoor living
Full opening onto a terrace or deck, with a traffic door for everyday use.
Openings wider than they are deep
Folding suits a long run where a sliding panel would need somewhere to slide to.
Compare configurations
Not sure this is the right one? Here is how it sits against the rest of the range.
Two opening actions, one handle.
Side-hinged, single action, widest clear opening.
Top-hinged outward. Ventilates through rain.
Sashes slide horizontally. No swing into the room.
Largest panels. No swing clearance needed.
Folds fully back to open the whole wall. You are here.
Lifts clear of the seal — heavy panels, tight seal.
Common questions
Panels can gather to the left, the right, or split to both sides of the opening, folding back concertina-style against the jamb. Which side works best depends on the elevation and what needs to sit beside the opening once the doors are folded back.
Yes. Each panel locks to its neighbour and to the frame, compressing along full-height weatherseals as the doors close — a linear seal across every joint in the run, not just at the perimeter.
Yes. A traffic door can be built into the run, so one panel opens conventionally on its own hinge for everyday use without folding the whole set back — useful for stepping in and out without operating the full door.
Send us your drawings
Quotes hold for 30 days. Serving North Carolina, South Carolina and Tennessee.
