Custom-fabricated, marine-grade Vistafold aluminium stacking doors engineered for Umkomaas coastal environments. Configurations from 3 to 10 panels, widths up to 7.5m, SANS 10400-N safety glazing and Grade 316 stainless hardware. Free site measure before any quote.
STACKING
Umkomaas sits at the mouth of the eMkhomazi River on the KZN South Coast, which shapes its climate in two distinct ways: direct marine exposure along the beachfront strip, and elevated humidity from the river valley further inland. We fabricate Vistafold stacking door systems engineered for both. Frame profiles are cut and welded to under 1mm tolerance at our Durban facility, finished in marine-grade architectural powder coating, and fitted with Grade 316 stainless steel double-bogey rollers specified specifically to resist chloride pitting under continuous salt exposure. Glass thickness is calculated per pane against the wind-load for the specific elevation and height above grade. Fabrication happens in Durban; installation is handled on site by our own teams.
Two different ways to open a wall. The choice is driven by how much of the wall you want to remove.
| Parameter | Sliding System | Vistafold Folding-Stack System |
|---|---|---|
| Panel operation | Slides on one or two tracks; panels overlap | Hinged panels fold back into a compact stack |
| Clear opening | Usually about half the span | Entire span can be opened |
| Panels in the system | Typically 2 to 4 | Commonly 3 to 10 |
| Maximum leaf width | Commonly up to 2.4m per panel | Commonly up to 900mm per leaf |
| Maximum system width | Varies by system | Up to 7.5m total |
| Maximum system height | Varies by system | Custom up to 3000mm |
| Hardware | Rollers on bottom track (or top-hung) | Grade 316 stainless steel double-bogey rollers; top and bottom rolling |
| Glass specification | Toughened or laminated | 6.38mm PVB laminated safety glass baseline; thicker or double-glazed up to 24mm where required |
| Weather sealing | Double-draft seals on perimeter | Wool-pile weather strip + drainage track; inter-panel seals |
| Security | Standard multi-point locking | Mortice locks and double-action flush bolts typically specified |
Which system is appropriate is determined during the site measure. The table above outlines common differences — not a universal specification for every job. Frame depth, glass thickness, hardware and finish are confirmed per opening, with wind-loading calculated for the specific elevation and height above grade.
Odd-numbered configurations (3, 5, 7 panels) provide a daily traffic door — one panel operates independently, so you can let people or pets through without folding the entire stack.
All three panels fold to one side. The leading panel operates as a daily traffic door for everyday access.
All five panels fold to one side. The leading panel operates as a daily traffic door. Suits the wider openings common to Umkomaas beachfront properties.
Seven panels folding to both ends of a wide span, with the central leading panel operating as a daily traffic door. Common for wider veranda openings overlooking the river mouth.
Up to 7.5m total width. Specified for the largest architectural openings where a full wall needs to disappear.
The configuration is confirmed during the site measure. Not every layout suits every opening — panel count, glass weight and hardware selection all affect what is practical. Corner configurations are designed separately.
Two considerations that matter on the KZN South Coast more than inland.
This is the section of the National Building Regulations that governs glazing safety. Safety glazing is required in defined areas — including doors, sidelights and glazing within 500mm of the floor. Standard laminated safety glass of 6.38mm PVB thickness is commonly specified for coastal stacking door panels, with thicker laminated or toughened units available where the exposure or acoustic requirement warrants it. For sea-facing elevations, glass thickness and frame profile are calculated per pane against a minimum 1000Pa wind-load for the height above grade.
Umkomaas sits at the mouth of the eMkhomazi River with direct marine exposure along the beachfront strip and elevated humidity inland. Salt spray, humidity and wind-driven rain all affect the door over time. Marine-grade architectural powder coating is used on the frame finish to resist salt-air corrosion. Track drainage channels, wool-pile weather strip and Grade 316 stainless steel double-bogey rollers are commonly specified for near-coastal properties. Grade 316 is specified rather than the more common Grade 304 specifically because it resists chloride pitting under continuous salt exposure.
Correct installation affects performance as much as the product itself — particularly on stacking doors, where every panel must align with the one before it. Setting blocks, drainage, expansion gaps and weather sealing all matter. Our installers work to standard industry practice for aluminium door installation in residential settings, with the specification confirmed in the written quote. Compliance documentation is available on handover where required.
What is included in a Bluminium Vistafold stacking door order, and what is specified per project.
Options such as soft-close hardware, thicker laminated glass, double glazing up to 24mm, recessed tracks or marine-grade hardware upgrades are specified per project — they are not included in every job by default. The quote lists what is included for your specific opening.
The same process whether it is a 3-panel traffic door or a 10-panel expansive span.
We visit the property, measure the full opening and note the orientation, height above grade and exposure. For top-hung configurations, the structural lintel must be load-rated — we confirm this on site.
An itemised quote covering panel count, glass, finish and installation. Coastal-grade options and structural prerequisites are listed so you can see what is included.
Vistafold panels are cut, welded, glazed and finished in our Durban facility to under 1mm tolerance. This keeps fabrication quality-controlled and consistent — not outsourced to a third party.
Our teams fit, align and test every panel in the stack on site. Stacking systems require precise panel-to-panel alignment, which is confirmed before handover.
We fabricate in Durban and install across Umkomaas and the surrounding communities. Below is what we commonly encounter in each area.
Coastal exposure changes over just a few kilometres on this part of the coast. A sea-facing property in Clansthal has different requirements from an inland home in Craigieburn or a river-mouth property in Umkomaas itself. The notes below describe common patterns — they are not assumptions about every property. The site measure confirms what is actually needed.
Umkomaas sits at the mouth of the eMkhomazi River, where humidity is elevated year-round and drainage detail matters. Established residential homes and beachfront properties both feature here. Retrofit measurement matters — many older homes have timber or steel frames that need extraction before a Vistafold system can be fitted, and the aperture itself is often non-standard.
Sea-facing residential zone with direct marine exposure, immediately south of Umkomaas. Salt spray and wind-driven rain are the dominant environmental factors. Marine-grade powder coating, Grade 316 stainless hardware, wool-pile weather strip and drainage detailing matter more here than anywhere else on the page. Wider openings onto ocean-facing verandas are common, which is where 5 and 7-panel configurations come in.
Inland residential zone with a mix of family homes undergoing modernisation. Salt exposure is lower than the beachfront, but summer heat gain through the glass and the general thermal efficiency of the opening become the priority. The thermal-break option in the Vistafold profile is often worth specifying here — it slows heat transfer across the frame, which shows up as a measurable difference in interior comfort through the KZN summer. Two and three-panel configurations are common. Security hardware is often specified higher for homes that are not permanently occupied.
Our installation teams work across the wider lower South Coast corridor from the Durban fabrication facility. Exposure profiles vary across these nodes, but the specification process remains the same: site measure, written quote, then a system designed for the actual opening and its specific exposure.
Questions that come up when specifying a stacking door on the lower South Coast.
Vistafold stacking door systems are fabricated in configurations from 3 panels up to 10 panels, with total system widths reaching up to 7.5 metres and heights custom up to 3000mm. Maximum leaf width is typically around 900mm. For Umkomaas homes with coastal or garden outlooks, 3 and 5-panel configurations are common, with 7 to 10-panel systems specified for the wider veranda openings overlooking the Indian Ocean. Odd-numbered configurations (3, 5, 7 panels) provide a key practical advantage: one panel operates as a daily traffic door, so you can let family or pets through without folding the entire stack. The panel count, stack position and corner arrangement are confirmed during the site measure.
The key difference is how much of the wall can be opened. A sliding door runs on one or two tracks and overlaps panels — the clear opening is usually limited to about half the total span, and some of the wall stays glazed when the door is open. A folding-stack door folds panels back on hinged joints into a compact stack at one or both ends, so the entire span can be opened. That makes stacking systems the better choice where the goal is to remove the wall between interior and exterior rather than simply provide a passage. Sliding systems remain a good option where the opening is narrower or where a lower budget is the priority.
Aluminium stacking doors need very little maintenance, though Umkomaas's coastal exposure means a slightly more regular routine pays off. Salt spray carried on onshore winds and the humidity along the river mouth can build up on hardware over time. A freshwater rinse every few months removes salt deposits. Keeping the bottom track free of grit and salt prevents binding. A periodic wipe-down with a damp cloth and mild detergent keeps frames clean. Silicone-based lubricant on rollers and hinges helps with smooth operation. The frames themselves — finished in marine-grade architectural powder coating and fitted with Grade 316 stainless hardware — are specified specifically to resist this exposure.
Yes — corner configurations are available and are often specified where the goal is to open up two walls of a living space to an outdoor area. Corner stacking systems use a corner post assembly that allows panels from two sides to fold and stack independently, so the corner effectively disappears when the doors are open. This is a common request for Umkomaas properties with views in two directions — ocean on one side and garden or patio on the other. Not every opening suits a corner arrangement; the structural support at the corner post position and the available floor area for the stacked panels both need to work. The corner arrangement is designed during the specification stage and confirmed during the site measure.
Safety glazing is a legal requirement in defined areas under SANS 10400 Part N — including doors, sidelights and glazing within 500mm of the floor. Standard laminated safety glass of 6.38mm thickness is commonly specified for coastal stacking door panels, with thicker laminated or toughened units available where the exposure or acoustic requirement warrants it. Double glazing can be specified up to 24mm total thickness for thermal insulation or acoustic control. Glass thickness is calculated per pane against wind-loading for the specific elevation and height above grade.
After the site measure and written quote, fabrication typically takes 2–4 weeks depending on the system, panel count and finish. Stacking systems with more panels or corner configurations may take longer. Installation of a standard residential stacking door is often completed in a single day. A firmer timeline is confirmed with the quote.
Detailed guides on the technical decisions behind coastal stacking door quotes.
How salt spray, humidity and wind-driven rain affect aluminium hardware over time, and the quarterly maintenance routine that keeps tracks and rollers operating smoothly on coastal properties.
Read the guide → / GuideHow the two systems differ in operation, opening percentage, and where each makes sense — plus the spatial clearances that determine whether a folding stack can fit a specific opening.
Read the guide → / GuideWhich openings legally require safety glass under SANS 10400, how wind-load calculations on coastal elevations affect the glass specification per pane, and what a compliant installation has to demonstrate at handover.
Read the guide →Tell us roughly how wide the opening is, whether the property is sea-facing, and how you want traffic to move through the door. When requesting a quote via WhatsApp, text us your approximate structural wall opening width and height for a rapid itemised estimate — no exact sizing needed yet, every quote includes a free professional site measure before manufacturing begins. All setups are custom built to handle heavy coastal weathering pressures; frames are cut to under 1mm engineering tolerance in our Durban facility.
If a stacking door is not the right fit for the opening, one of these may be.
