Cortizo Slimeline 20+ With a thermal break and an ultra-slim 25 mm interlock, this system is perfect for enclosing large openings up to 4 meters wide or high.
Hidden Track
Flush Key
Slim Line
Profile
Hidden Track
Minimalist sliding system with thermal break and minimal aluminium sight line in which its large sashes take centre stage, with dimensions of up to 4 meters wide or high.

TRANSMITTANCE
Uw ≥ 0.9 (W/m²K)

ACCOUSTIC
Rw up to 43 dB

Air
Class 4

WATER
Class 7A / 9A

WIND
Class C3 / C4

BFRC Rating
A

| Sections | Frame 180mm / 278mm, 3 Rails, Sash 69mm |
| Profile Thickness | 20mm |
| Max Dimensions | W = 4000mm, H = 4000mm |
| Max Weight | Manual = 400kg, Motorised = 700kg |
| Extrusion Alloy | 6063 T-5 |
| Polyamide Strip Length | Frame = 40mm, Sash = 18 / 32mm |
| Opening Possibilities | 1, 2, 3, and 4 Sashes, Possibility of interior and exterior corner sash at 90° without mullion galandage |
An integrated locking system
That can be embedded within the interlock, enabling the sashes to remain hidden while ensuring smooth sash crossing.
GREY
BLACK
WHITE
LIGHT
DARK
CUSTOM
Design & Installation
– Seamless Solutions from Start to Finish –
We offer a complete end-to-end service, including a full survey, expert professional advice, and tailored design solutions. From supply to installation, we ensure every step is seamless and customized to meet your needs.
Pricing
– Official Suppliers with Competitive Rates –
As an official Smart Architectural Aluminium supplier and fitter, we offer competitive pricing and our expert team ensures you receive exceptional value for your investment, with tailored solutions to meet your specific requirements and budget.
Delivery & Lead times
– Reliable Timelines, Prompt Delivery –
We prioritise efficient delivery and reliable lead times, ensuring your products arrive on schedule. Our team works diligently to provide accurate timelines, keeping you informed every step of the way, so you can plan with confidence.
Ready to transform your space?
Contact us today
For a free consultation and personalised quote.
Our experts are waiting to quote you
Frequently Asked Questions
We understand that you have many questions that need answering. If you don’t find the answer here then please get in touch.
Do we offer slim profiles?
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Where do your products sit in the industry?
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Where are they manufactured?
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