The SL38: Where Less Frame Means More Everything Else
Reynaers SL38 | Manufactured by Luxal Aluminium
Here’s the thing about great design: it knows when to get out of the way.
The Reynaers SL38 doesn’t try to steal the show. It simply creates one. With sightlines as slim as 38mm, this system does what every architect secretly dreams about—it practically disappears, leaving nothing but pure, uninterrupted views.
We’re talking about frames so slender they make your standard windows look like they’ve been hitting the gym too hard.
Beauty in the Details (Or Lack Thereof)
At Luxal, we’ve been working with premium aluminium systems long enough to know that the best frames are the ones you barely notice. The SL38 delivers on this promise brilliantly. Those ultra-slim profiles create a visual lightness that transforms spaces—whether you’re designing a contemporary home extension, a sleek commercial entrance, or a renovation where modern meets heritage.
The images tell the story better than words ever could. Floor-to-ceiling installations that blur the line between inside and out. Traditional buildings given a contemporary edge without losing their character. Roof windows that frame the sky like minimalist artwork.
More Glass, Less Fuss
For architects and specifiers, the mathematics are simple: less frame equals more glass, which equals more natural light, which equals happier clients. The SL38 system achieves this without compromising on what actually matters—structural integrity, thermal performance, and weather-tightness.
You’re not sacrificing performance for aesthetics here. You’re getting both.
The system handles substantial glass weights whilst maintaining those impossibly slim profiles. It’s precision engineering at its finest, delivered with Belgian attention to detail that Reynaers is renowned for.
Why Your Projects Need This
Let’s be honest—your clients want more light. They want better views. They want spaces that feel open and airy, not boxed in by chunky frames. The SL38 delivers exactly that.
For installers, the system’s thoughtful design means straightforward installation without the headaches. For builders, it’s a specification that sells itself—walk a client past a mock-up and watch their face light up. For architects, it’s the freedom to create those bold, glazed elevations without visual clutter getting in the way.
Versatility That Actually Means Something
Whether you’re working on:
- Contemporary residential projects demanding maximum transparency
- Heritage buildings requiring sensitive interventions
- Commercial spaces needing statement glazing
- High-end renovations where every detail counts
The SL38 adapts. Fixed glazing, opening vents, different configurations—it’s designed to fit your vision, not force you into predetermined solutions.
The Luxal Difference
We manufacture the SL38 right here in our Lancashire facility, bringing decades of aluminium fabrication expertise to every frame. Our team understands the system inside out, which means accurate technical support when you need it and quality fabrication that stands the test of time.
From our 50,000 sq ft facility in Heywood, we’ve been supporting UK architects, builders, and installers with precision-engineered Reynaers systems for over 27 years. The SL38 represents everything we value—innovation, quality, and design that simply works.
See the Difference 38mm Makes
Want to see what 38mm sightlines look like in person? Visit our training facility or get in touch for technical specifications tailored to your next project.
Because sometimes, the best frame is the one you barely see.
