SD22F Strongwood® Security Window – 2265mm Wide × 1205mm High with Centre Fanlights
The SD22F is a wide-format Strongwood® Security Window with a four-section layout: two full-height opening sashes on the outer left and right, and two centre sections each featuring a top-hung opening fanlight above a fixed lower panel. This configuration maximises ventilation flexibility while maintaining the full Strongwood® security specification throughout. Solid lengths of steel are encased within each cottage pane bar, and the bars are fixed to the frame — not the sash — so the window remains secure even when open.
How the Strongwood® System Works
A standard cottage pane window has timber horizontal and vertical bars on the opening sashes. On a Strongwood® window, the cottage pane bars are fixed to the frame — not the sash. The opening sash is full pane, which means:
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Easy cleaning – the full pane sash opens freely with no bars obstructing access to the glass
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Secure when open – the steel-cored bars remain fixed to the frame, so the window is guarded whether open or closed
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Genuine burglar resistance – solid steel lengths encased inside every timber bar make them extremely difficult to cut or force
This is a fundamentally different construction to a standard cottage pane window, and it is what makes the Strongwood® system uniquely effective.
Key Features
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Four-section layout – two full-height outer opening sashes and two centre sections with top-hung fanlights over fixed lower panels
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Centre fanlights – top-hung opening sections in the two centre panels for additional ventilation
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Solid steel encased in cottage pane bars – genuine security, not just aesthetics
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Bars fixed to frame, not sash – full pane opening sash for easy cleaning
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Secure when open – ventilate safely without compromising burglar resistance
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Cottage pane profile – classic South African style suitable for a wide range of homes
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Timber construction – natural warmth and character
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Opens outwards – standard South African timber window operation
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Supplied unfinished – ready for your choice of paint, stain, or sealer
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Excludes glass – must be sourced and fitted separately
Specifications
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Model: SD22F
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Width: 2265mm
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Height: 1205mm
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Depth: 90mm
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Layout: 4 sections — 2 full-height outer opening sashes, 2 centre sections with top-hung fanlight over fixed lower panel
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Style: Cottage pane with Strongwood® steel security bars fixed to frame
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Material: Timber with solid steel bar cores
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Opening sash: Full pane (bars on frame, not sash)
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Opening direction: Outward opening; fanlights top-hung opening outwards
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Finish: Unfinished – ready for painting or staining
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Glass: Excludes glass – must be sourced separately
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Lead time: 14–21 days from order confirmation
Frequently Asked Questions
What does the “F” in SD22F mean?
The “F” denotes opening fanlights. On the SD22F, the two centre sections each have a top-hung opening fanlight above a fixed lower panel. The two outer sections are full-height opening sashes. This gives you multiple ventilation options across the full width of the window.
What makes a Strongwood® window different from a standard cottage pane window?
On a standard cottage pane window, the horizontal and vertical timber bars are part of the opening sash. On a Strongwood® window, the bars are fixed to the frame and the opening sash is full pane. This means the sash opens freely for easy cleaning, while the steel-cored bars remain in place — keeping the window secure whether it is open or closed.
What makes a Strongwood® window more secure than a standard timber window?
Strongwood® windows have solid lengths of steel encased inside each cottage pane bar. Standard timber bars can be cut or forced. The steel core in Strongwood® bars makes them extremely difficult to compromise. Because the bars are fixed to the frame rather than the sash, they cannot be bypassed by simply opening the window.
Is this window secure when open?
Yes — this is one of the defining advantages of the Strongwood® system. The steel-cored bars are fixed to the frame, not the sash. When the sashes or fanlights are open for ventilation, the bars remain in place across the opening, maintaining full burglar resistance.
Is this window easy to clean?
Yes. Because the outer opening sashes are full pane (the bars are on the frame, not the sash), the glass is fully accessible when the window is open — making cleaning straightforward compared to a standard cottage pane window where bars obstruct the sash.
Does this window include glass?
No. Glass is excluded and must be sourced and fitted separately by a glazier. This is standard for South African timber windows. Ensure you measure each individual pane opening accurately before ordering glass.
Which direction does this window open?
The outer opening sashes open outwards, which is standard for South African timber windows. The centre fanlights are top-hung and also open outwards.
What finish is applied to this window?
The window is supplied unfinished. After installation, apply a quality exterior wood paint, stain, or sealer suitable for timber windows. Seal all surfaces — including the bottom rail and any end grain — to protect against moisture and extend the life of the window.
What size is this window?
The SD22F measures 2265mm wide × 1205mm high × 90mm deep. This is a wide-format window well suited to living rooms, entertainment areas, and generous residential openings requiring both security and ventilation flexibility.
What is the lead time?
Lead time is 14–21 days from order confirmation. Nationwide delivery is available across South Africa.
Where can I buy the SD22F Strongwood® Security Window?
The SD22F Strongwood® Security Window is available online at doorsdirect.co.za with nationwide delivery across South Africa, including Johannesburg, Cape Town, Durban, and Pretoria.
Can I get a custom size?
Custom sizes may be available. Contact us with your opening dimensions and we will advise on options and pricing.
