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Genius Side Hung Aluminium Window 1800 × 1800 mm Twin Opener

Elevation drawing shown as viewed from the inside.
Opening direction is confirmed against this drawing before manufacture.

Coetz™ Genius Side Hung – 1800 × 1800 mm – Twin Opener, 300 mm Tall Vent

(excl. VAT)

Catalogue pricing updated: 13 October 2026 · Manufactured to order in 1–2 days

1800 × 1800 mm genius side hung casement window – Twin Opener, 300 mm Tall Vent. 6.38 mm clear laminated safety glass, supply only.

Attributes	Value
Colour	Black, White, Bronze, Charcoal, Natural Anodised

🔧 Made to order — every Coetz™ unit is manufactured specifically for your order.

🚚 Collection or delivery — available from our Laser Park, Roodepoort premises, or delivery across Gauteng.

Colour

Clear

Compliance considerations

Glass specification for windows depends on the opening size, position and exposure. Larger or more exposed openings may call for a different glass or additional support under wind load, and glazing in hazardous positions may need safety glass. SANS 613 windows and doors →

Can't find the exact size?

Every opening is different. If the standard range doesn’t fit, we’ll manufacture something that does.

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📦 Lead time — 1–2 days from order.

📄 Warranty — warranty terms provided with order confirmation.

SKU: GN-SH-TG-18001800

Category: Genius Casement Windows

🔒Laminated or toughened safety glass

🛡️Genuine aluminium profiles

🏷️CG™ marked glass panels

📏Made to order

🚚Supply-only nationwide

📋Clear technical specifications

If it’s not Coetz™ it’s not Certified.

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Before you buy

🏭 Supply-only — Coetz™ supplies aluminium windows and doors only; installation is arranged separately by you or your contractor.
🚚 Collection or delivery — see the full Delivery & Collection process.
🛡️ Warranty — see our full Warranty terms.
↩️ Returns & cancellations — see our Returns & Refunds policy.
💬 Not sure which product fits your opening? Chat with a Coetz™ specialist.

Description

Genius Side Hung Aluminium Window 1800 × 1800 mm Twin Opener, 300 mm Tall Vent — made to order in South Africa and priced online, supplied direct by Coetz™.

Genius Side Hung Window – 1800 × 1800 mm, Twin Opener

A made-to-order 1800 × 1800 mm genius side hung casement window from the Genius range, with a 300 mm tall vent. Side-hung sashes give a wide, eye-level opening that is easy to reach across a counter or sill, and they catch cross-breezes better than a small top vent. Glazed with 6.38 mm clear laminated safety glass, powder-coated to your chosen finish and supplied nationwide across South Africa.

Specification

Catalogue size: 1800 W × 1800 H mm
Actual frame size: 1790 × 1790 mm (10 mm less than the catalogue size, each dimension).
Configuration: Twin Opener, 300 mm Tall Vent
Sash / vent: 300 mm wide x 1200 mm high tall vent sash
Operation: Two side-hung sashes, one at each jamb, opening outwards
System: Genius casement window range
Glass: 6.38 mm clear laminated safety glass as standard on every window we build.
Finish: Black, White, Bronze, Charcoal or Natural Anodised powder coating. Black and Natural Anodised carry a supplier premium, already reflected in the price for that colour.
Lead time: 1–2 days from order.
Supply: Supply only – installation is not included.
Brand: Coetz™

Other sizes in this range

Need a different size? The Genius Side Hung Aluminium Window 1800 × 1800 mm Twin Opener, 300 mm Tall Vent shown here is one of 17 sizes made to order in this range:

This range runs from 900 × 1200 mm up to 2400 × 1500 mm. See every size in Genius Casement Windows