Signature Bi-Fold Door
A folding door that concertinas its panels to one or both sides, clearing the opening almost entirely. Top-hung running gear carries the weight so the floor track stays low, and EPDM weather seals with a thermally broken frame keep the closed position tight.
Configure your unit, then request a quote — we price it and reply, usually within one business day.
Every unit is made to the opening. Sizes confirmed at quotation.
Low-E1 / E2 / E3 coatings, laminated and tempered build-ups available. We recommend the coating for your climate zone.
Full RAL range on request; the twelve most-ordered colours are listed. Powder coat or anodised.
No surcharge for any of these European hardware brands.
No price is shown because every unit is made to order. You will get a written quote for exactly this configuration.
10-year warranty · 20-year transferable upgrade available
Questions before you order
Will these pass a Florida HVHZ inspection?
This model is not covered by a Miami-Dade Notice of Acceptance, and we do not present it as if it were. We hold active NOAs on hurricane-zone systems — casement, fixed, awning, sliding glass door and storefront — and will tell you which one fits your opening if your job is in HVHZ. We do not claim an impact rating on a product that has not been tested for one; that is exactly what fails an inspection.
Do I get stamped drawings and the approval number before I order?
Yes — with the quotation, not after the order. Shop drawings carry a Florida-licensed engineer of record’s seal, and if the system holds a NOA, the exact number covering your opening is issued in writing at that same point. A supplier who only produces drawings once you are committed has moved their risk onto your schedule; here the paperwork arrives before the decision, not after it.
What happens if a unit arrives wrong — who pays for the delay?
We do. If a unit does not match your approved drawings, or has a manufacturing defect, we replace or repair it at no cost to you — send the order number and photographs and we start it the same day. The honest constraint worth knowing: a replacement is manufactured and shipped like any other order, so the realistic timeline is production plus freight, not days. That is the strongest argument for ordering a small contingency on a large project.
Can you meet a 9-week schedule, or is that best-case?
It is the figure we confirm in writing before deposit, against a real production schedule — not a best-case number used to close the sale. 9–10 weeks door to door already includes production, ocean freight, customs and final delivery in one figure. That said: non-standard sizes, special finishes and large combinations do take longer in production, and we say so at quotation, not after you have already paid a deposit.
Who holds the warranty — you, or someone overseas?
We do. One company on the contract, one warranty, one point of contact — you deal with NEXWD from the quotation through to a claim years later, and there is no second party on the other side of the world for us to hand you off to. Ten years standard on frame, hardware and screens; an optional 20-year upgrade on glass, transferable without proration. Ask this question of every supplier you are comparing — the answer tells you more than any brochure.
Do you provide CAD/BIM for my submittal?
Yes, free, and at quotation — drawn from our own production drawings, not a generic template, and not gated behind an account or a minimum order. NFRC data, size-versus-pressure tables and section details are included.
Overview
A folding outswing door: the leaves are hinged to one another and concertina to one side, both sides or into a corner, so that when it is open the wall is gone rather than merely slid aside. It can be built to open from the left, the right or the centre, and a folding run can be specified as a pass-through window serving an outdoor kitchen or bar. Configurations are always designated left to right as seen from outside.
It differs from the sliding doors in the range in what it does with the panels rather than how much glass it can carry. A slider always leaves at least one panel-width of glass in the opening; this clears the whole run. The trade-off is leaf size: individual panels are between 17 11/16" and 37 3/8" wide and between 50 13/16" and about 118" tall, so a wide opening is made from many narrow leaves rather than a few large ones. Runs go from three panels at 6 to 8 ft of opening up to twelve panels at 28 to 33 1/2 ft, with overall heights from 4 1/4 ft to 10 ft, and the panel split is specified with the stack — 3+1, 5+1, 3+3, 7+3, 5+5 and so on — so a traffic door can be left in the run without unfolding the whole wall.
The frame is the 90 mm class, 3 9/16" across the head, which is where the number comes from. Weight is carried at the top by guide rollers in a 75 mm head assembly and at the bottom by load-bearing rollers running on a stainless steel rail in a 52 mm frame, with a 60 mm bottom sash above it. The build-up is a thermally broken aluminium section with a thermal barrier strip, EPDM weather stripping, polystyrene foam, silicone-sealed glazing beads and a warm-edge spacer. Glazing is a 6+12+6 double or a 5+9+5+9+5 triple, argon-filled and low-E coated: NFRC figures printed for this door are U 0.39 with SHGC 0.21 double-glazed and U 0.30 with SHGC 0.16 triple-glazed.
Two on-floor sills are offered. The low-threshold sill is 131 mm wide and 85 mm overall with 19 mm ramped lips on both faces, and is designated accessible and wheelchair accessible; the drainage sill is 90 mm wide over a 13 mm threshold lip and takes water away rather than ramping over it. Corner folds turn 90 degrees: an external angle fold opens outward with the screen inside and can be combined in any leaf split, 7+2, 4+2 or 5+3 among them, while a negative corner fold is only available as 4+4. Handles and hinges are by SAVIO in white, grey and black with CMECH hinge and flush handle hardware, running on precision bearings. Where the folding leaves stack into a collection box, its structural capacity has to be verified against a maximum load of 220.462 lb — 100 kg.
| Product line | Signature |
|---|---|
| Material | Aluminum |
| Type | Door |
| Platform | 90 |
| Max width | 17 11/16"–37 3/8" per panel (449–949 mm) |
| Max height | 50 13/16"–118 1/8" per panel (1291–3000 mm) |
| Lead Time | 9–10 weeks, fully door-to-door |
Specifications
| Material | Aluminum |
| Platform | 90 |
| Max width | 17 11/16"–37 3/8" per panel (449–949 mm) |
| Max height | 50 13/16"–118 1/8" per panel (1291–3000 mm) |
The platform number is a nominal frame depth in millimetres — contact us for the exact measured section before you detail the opening.
Frame profile & section
Values not listed are pending the manufacturer’s certified test report and are deliberately left blank rather than estimated.
Mounting and frame options
The frame type decides the rough-opening detail, the flashing and how much of the existing wall has to come out. Four are available; tell us the wall build-up and we will specify which one your opening needs.
The standard new-construction frame. The flange laps the sheathing so the unit sets and seals in one operation.
A 1 3/8" flange is available where the cladding build-up needs the extra reach.
Installs over an existing aluminum window frame, so the stucco exterior is left intact. No cutting back and repatching.
Available on selected window types — ask us which of your openings can take it before you price the stucco work.
For full removal, when the existing frame is rotten or damaged and has to come out entirely.
Sets into the existing rough opening, and arrives with the through-the-jamb holes pre-drilled and the screws supplied.
Straps fix to the frame, which lets the unit sit anywhere in the depth of the wall cavity rather than at a fixed setback.
Installs from the interior, and works for both new construction and replacement.
Full CAD details for any of these are available on request for your wall assembly.
Factory-joined combinations for large openings
Multi-unit combinations are joined in the factory and delivered as one assembly, so the joint is made under shop conditions instead of on a scaffold. The joining mullion is 1 1/8" (28 mm) wide and comes in three reinforcement grades, chosen by the height of the window it has to carry. The system is covered by a US patent.
| Suggested window height | Joint width |
|---|---|
| up to 9 ft | 1 1/8" (28 mm) |
| 9 to 11 ft | 1 1/8" (28 mm) |
| 11 to 13 ft | 1 1/8" (28 mm) |
Combinations arrive partly or fully assembled depending on size and shipping method. Tell us the opening and we will confirm which grade your height needs and how the unit will be split for transport, before you price the crane time.
How large combinations are joined →Installation details
Timber frame, masonry and board substrates, plus the splice joint used to ship large units in sections. Full CAD details on request.
Installation methods explained →Performance & Certifications
Performance & Certifications
| U-Factor · Double-pane | 0.39 |
| SHGC · Double-pane | 0.21 |
| U-Factor · Triple-pane | 0.30 |
| SHGC · Triple-pane | 0.16 |
Values not listed are pending the manufacturer’s certified test report and are deliberately left blank rather than estimated.
Warranty
Our products are certified to:
Certificate numbers available on request.
VERIFIABLE NOW44 certified product linesListed in the public NFRC directory. Ask for the CPD number covering the system you are specifying and we will confirm it in writing.
Options
Finishes
Powder-coat finishes to the standard RAL card, plus anodized options. Wood interiors are available in several species and interior finishes.
Glazing
- Double- or triple-pane insulated glass
- Low-E1 / Low-E2 / Low-E3 coatings
- Argon fill
- Tempered and laminated build-ups
- Custom interlayer colours and patterns
Exterior finish
The exterior is extruded aluminum cladding, which is why the finish schedule matters more here than the colour chart on a vinyl window: it is a powder coat on structural extrusion, not a surface tint.
19 finishes are available in total, including three pearlescent. Twelve are named here; ask us for the rest, or for a custom colour match.
Swatches are indicative only — reproduced from print, shown on your screen. Specify by RAL number, and ask us for a physical sample before you commit an elevation to a colour.
Lead Time
- 9–10 weeks total, door-to-door: production, customs clearance, duties and delivery to your jobsite — nothing left for you to arrange separately.
- Ocean freight and drayage are booked and tracked on your order, not quoted as a separate step afterward.
- Shop drawings and a confirmed production schedule are provided before deposit, so the 9–10 weeks starts from a real date.
- Schedules are confirmed in writing at order. We build to your project timeline.
Downloads
Drawings & documentation
CAD window and door schedules, BIM models, performance documentation and installation details are prepared per project for trade accounts.
Request documentation →From our projects
Read all reviews →Customer statements from installed projects, quoted unedited.
“That’s so user-friendly! Once when the hotel had a power outage, the doors automatically opened—how convenient and hassle-free!”
“These doors look great , I’m very impressed.”
“I feel that the quality of my life has improved. It’s very quiet and comfortable. I’m in a good mood after using it.”
“The view is broader and the room is brighter. The whole family loves it very much.”
You may also like
The warranty, in short
- 10 years, standard
- Included with every order. Covers the aluminum frame, factory-installed hardware and screens against defects in material and workmanship.
- 20 years, optional
- A paid upgrade extending cover to twenty years on insulated glass units and impact-rated laminated glazing. This one transfers to a subsequent owner, without proration.
- What you receive
- Replacement parts at no charge for a covered defect. Shipping on those parts, and all labor, removal and reinstallation, are the customer’s.
- What is excluded
- Improper installation or handling, ordinary weathering, accident or misuse, and severe weather. Glass broken by wind-borne debris is not covered where the glazing performed within its tested design pressure.
All NexWD Products Include Our Complete Standard Service Package.
- 9–10 weeks, fully door-to-door — production, customs, duties & delivery to your jobsite all included.
- Full North American certification support: NFRC, AAMA/WDMA/CSA 101 and Impact-line TAS documentation on request.
- Complimentary 10-year limited warranty; optional 20-year transferable glass coverage upgrade available.
- Free CAD/BIM technical files, drawn from our own production drawings — no account required.
- Zero extra charge for non-standard sizes and configurations.
- On-site technical support within 48 hours upon special service requests, across 39 states.