Aluminium sliding door sizes in South Africa follow a standard grid: widths from 1 500 to 7 500 mm and heights of 2 100, 2 400 or 2 700 mm, in 2, 3, 4 and 6 panel layouts. Knowing the grid before you build or renovate saves money, because a standard size is made in 1–2 days at a catalogue price. This guide sets out the standard sizes for every Coetz™ sliding range, how to read them, and how to choose the right one.
In this guide
How aluminium sliding door sizes are written
A size such as 2 400 × 2 100 mm means 2 400 mm wide by 2 100 mm high. That is the catalogue, or opening, size. The actual frame is 10 mm smaller each way, so a 2 400 × 2 100 mm door has a frame of 2 390 × 2 090 mm. The gap leaves room for packing and sealing. See how to measure aluminium doors.
Standard widths by panel layout
| Layout | Standard widths |
|---|---|
| 2 panel | 1 500 to 3 000 mm |
| 3 panel | 1 800 to 4 500 mm (2 400 mm upwards on some ranges) |
| 4 panel | 3 000 to 6 000 mm |
| 6 panel | 4 500 to 7 500 mm |
More panels let a wider opening use lighter, easier-to-slide panels, which is why aluminium sliding door sizes above 3 000 mm move to 3, 4 or 6 panels. See sliding door configurations for what each layout looks like.
Standard heights by range
| Range | Heights |
|---|---|
| Patio | 2 100 and 2 400 mm |
| StormSeal | 2 100 and 2 400 mm |
| Elite | 2 100, 2 400 and 2 700 mm |
| Premier | 2 100, 2 400 and 2 700 mm |
| Premier Multi | 2 100, 2 400 and 2 700 mm |
| Horizon | 2 100, 2 400 and 2 700 mm |
2 100 mm is the most common height among aluminium sliding door sizes in South African homes. Taller doors suit double-volume rooms and modern houses with high ceilings. Not every width is offered at every height, so check the product page for the exact size.
Prices for the most common size
A 2 panel door at 2 400 × 2 100 mm is the most popular of all aluminium sliding door sizes. Prices are for White, excluding VAT, at the time of writing (October 2026).
| Range | 2 400 × 2 100 mm, 2 panel |
|---|---|
| Patio | R5 369 |
| StormSeal | R12 723 |
| Elite | R14 188 |
| Premier | R16 972 |
| Horizon | R17 896 |
| Premier Multi | R21 596 |
Choosing the right size
- Measure the opening in three places across and three up, and use the smallest readings.
- Pick the nearest standard size that fits, allowing for the 10 mm frame reduction.
- Choose the layout: 2 panel up to 3 000 mm, 3 or 4 panel for wider openings, 6 panel for the widest.
- Choose the height: 2 100 mm for most homes, 2 400 or 2 700 mm for taller openings.
- Check the range: only Elite, Premier, Premier Multi and Horizon go to 2 700 mm.
On a new build, ask your builder to form the opening to one of the standard aluminium sliding door sizes. It is cheaper than making the door fit an odd opening.
Sizes for renovations
When replacing an old steel or timber sliding door, measure the existing opening after the old frame is out, not the old door. Old frames were often made to imperial sizes, so the opening may sit between two standard aluminium sliding door sizes. Pick the nearest size below and pack the gap, rather than cutting into brickwork.
What if my opening is not a standard size?
If the opening is narrower or lower than the nearest standard size by a few millimetres, the installer packs and seals the gap. If it is far out, the opening can be built in or the door made to order; see Coetz™ Custom. Fixed sidelights can also fill extra width: see aluminium doors with sidelights.
Ordering
Coetz™ supplies only, so your builder or installer fits the door. We deliver across South Africa, or you can collect free from our Laser Park workshop. Large glass doors must meet SANS 10400-N, published by the South African Bureau of Standards. For the full range, see aluminium sliding doors.
Aluminium sliding door sizes: frequently asked questions
What is the standard sliding door size in South Africa?
The most common is 2 400 × 2 100 mm in 2 panels. Widths run from 1 500 to 7 500 mm.
How tall are aluminium sliding doors?
2 100 mm is standard. Elite, Premier, Premier Multi and Horizon also come in 2 400 and 2 700 mm; Patio and StormSeal go to 2 400 mm.
What is the widest sliding door?
7 500 mm, in a 6 panel layout.
Is the frame the same size as the catalogue size?
No. The frame is 10 mm smaller each way, leaving room for packing and sealing.
How quickly are standard sizes made?
Standard sizes are made in 1–2 days.
Coetz™, Unit 2, 84 Ridge Road, Laser Park, Johannesburg. Call 010 412 0062, WhatsApp 076 613 4418 or use our contact page.
Upstairs openings: see aluminium sliding doors for balconies.
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