• Cross-sectional view of a triple-glazed window frame with visible materials and construction details on a white background.
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Lift & Slide Alu-Clad Door (S315A)

Lift & Slide Alu-Clad Door (S315A)

Norrsken’s most popular sliding door – a triple-glazed aluminium-clad timber lift & slide system suitable for passive house builds, configurable up to four panels spanning 8,500mm wide. Also available with a Juliet balcony.

FRAME
  • Thermal Performance: U-Value 0.75
  • Sound Performance: 35db
  • Security Performance: PAS 24 Certified

Information

A 202mm deep triple-glazed sliding patio door with external Aluminium cladding.

Our most popular sliding door, the S315 lift and slide door can be specified to include up to four panels, with two opening panels. A wide variety of designs are possible to suit your project. Download available designs as a PDF. Depending on the configuration, this door can be specified up to maximum dimensions of approximately 8500mm in width and 2800mm in height. 

Whole door U-values as low as 0.75W/m²K. This door is suitable for use in Passive Houses.

This door is available with a Juliet Balcony.

View product in NBS Source

Technical

Opening types Lift and Slide
Frame depth 202 mm
Whole window U-value As low as 0.75 W/m²K
Glass U-value 0.53 W/m²K
Glass package 52 mm triple glazed, two panes Low-E, argon filled
Sound insulation 34 db
Air permeability Class 4 (EN 12207:2000)
Watertightness Class E750 (EN 12208:2001)
Wind load Class C4 (EN 12210:2001)
Timber Colours RAL
Aluminium Colours RAL, IGP textured

PHPP data

Download PHPP data

Drawing

S315A.dwg

S315A.pdf

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Lift & Slide Alu-Clad Door (S315A)

Frequently Asked Questions

What panel configurations are available?

The S315A is available in two-panel, three-panel, and four-panel arrangements. The two-panel and four-panel configurations have a 202mm frame depth - the four-panel version adds two sliding leaves in the middle, with the two outer panels fixed. The three-panel triple-track configuration uses a deeper 309mm frame, with one fixed pane and two sliding leaves. It's worth noting that the triple-track option is not suitable for Passive House applications. If Passive House compliance is a requirement, the two-panel or four-panel configuration is the appropriate choice. The Panorama option - which increases the glazed area on the fixed panel - is available on two and four-panel configurations.

What is the flush threshold grille?

A flush threshold grille allows drainage for the floor finish to run continuously at the same level on both sides of the door without a raised threshold profile. This is a significant detail for contemporary open-plan interiors and for projects where a seamless inside-outside relationship is part of the design intent. The grille is not available on the triple-track configuration, and it is not compatible with the threshold extension options.

Is there a threshold extension instead of a flush grille?

Yes. Where a continuous flush floor is not required, a 40mm or 60mm extension to the threshold is available. This extends the threshold profile slightly, which can be useful where the structural threshold requires additional depth to suit the floor build-up. Threshold extensions are not compatible with the flush threshold grille.

What is the maximum width?

Maximum widths vary depending on the configuration and the overall frame dimensions. For planning purposes, approximately 8,500mm is typically achievable - wider installations have also been completed. For verified maximum dimensions on your specific configuration and height requirement, our technical team can confirm accurate limits at the specification stage.

Can I have a sill?

There is no sill option for the S315A. Both 40mm and 60mm threshold extensions are available for situations where additional threshold height is needed, though these are not compatible with the flush threshold grille option. If you need to coordinate with external paving or internal floor finish levels, this is worth discussing at the survey stage.

Is the S315A suitable for Passivhaus projects?

The S315A achieves a whole-door U-value as low as 0.74 W/m²K, which is within the range required for certified Passivhaus buildings. Two-panel and four-panel configurations are suitable for Passivhaus specification. The triple-track three-panel configuration is not suitable for Passivhaus. PHPP data is available to download for this product.

See the S315A in action

At Norrsken, we’re fortunate enough to work on some breath-taking projects.

From barn conversions to innovative new builds, dream homes that take half a decade and an armada of professionals to budget-focused living space renovations and self builds – we’ve seen it all.  

Our windows and doors add beauty and value to homes up and down the country. We work with clients on a vast array of styles, designs, colours, and purposes. That is something we’re quite proud of.  

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Create Something Distinct

Every Norrsken order is unique. Beyond custom dimensions and precision manufacturing, we provide the design flexibility to perfectly express your vision.

From custom shapes and specialized hardware to powder-coated trims and distinct hardware - find the finishes you need, whatever your project specification.

OPTIONS

Colours & Finishes

Complete design freedom to perfectly match your architectural vision.

Choose from solid colours or natural finishes with dual-colour options available on virtually every product – select one colour externally and another internally using any RAL specification.

Handles & Hardware

Our curated hardware selection combines exceptional functionality with aesthetic flexibility.

While some components are product-specific for optimal performance, we offer extensive customization across styles, colors, and finishes.

Glass Options

Advanced glazing solutions engineered for optimal comfort and performance.

Our comprehensive glass selection provides complete flexibility including double and triple glazing, solar control, and obscure options. Glass delivers the highest insulation performance in any window - with proper specification, you can maximize beneficial solar gain while preventing overheating.

Modern building with triple-glazed window, a balcony overlooking a cloudy sky and water.

Enhanced Coastal Finish

Enhanced finishing is automatically quoted for projects within 1,500 metres of the sea.

The industry standard for marine grade powder-coated aluminium cladding is 40-100 microns. Our standard non-marine finish across all alu-clad products is 60-80 microns. Our enhanced coastal finish starts at 120 microns, meaningfully thicker than the category baseline, for projects exposed to salt air and prolonged weather.

Regular maintenance is still important to preserve the lifespan of your windows.





Close-up of a building exterior with wooden slat wall and triple-glazed window.

Sills & Trims

Bespoke sills and precision trims for unique architectural features. Specialized solutions including steel beam coverings and complex junction details.

Unmistakably trusted.

The highest compliment is a recommendation. These are the voices of those who placed their trust in us.

"Excellent Company from start to finish… If only every window supplier operated like this! I have used many others over the years on various projects but Norrsken far exceeded all of them… I hope this helps you make a decision for what is probably a large chunk of your budget… They are totally worth it"

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Angela Smith

Self Builder

"All contact with the team has been great, answering questions and concerns promptly, survey was thoroughly carried out... and delivery & Installation went smoothly... We are so pleased we went with Norrsken, we love our windows/doors and cannot recommend them highly enough!"

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Adrian

Homeowner

"Fantastic professional service, from the original design to the final installation. The triple-glazed windows and doors that have been fitted to our new house are of a very high quality and look amazing. We definitely made the right choice when we decided to use Norrsken, nothing is too much trouble for them."

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Nigel

Homeowner

"I did my research before contacting Norrsken but they had come highly recommended by our Architect for our Passive House self build.

From the first meeting with Nick we felt confident that they were the Company for us."

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Ali and Brian Manning

Passive House Self Builders

“The quality of the triple glazed, alu-clad windows and doors is superb. They feel so reassuringly solid ... I opted for a wood stain for the internal finish on the frames, and am so glad I did, as it shows off the beauty of the wood perfectly. The whole process from order to installation went smoothly. I thoroughly recommend Norrsken.”

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Gareth

Homeowner

"Norrsken provided attentive service from drawings to on-site installation for our project at National Trust Stourhead and we would definitely recommend and repeat commission them on future projects."

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Charlotte Hill-Baldwin

Architect, H-B Designs

“From our very first interaction to the aftercare support, Norrsken has been exceptional. The quality of their windows is outstanding - beautifully designed, expertly crafted, and a real standout feature in our home. They've truly elevated the overall look and feel of the house.”

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Neil Southwell

Self Builder Homeowner

“I can highly recommend Norrsken… After much research I found that Norrsken could beat all of the quotes for a high quality triple glazed option. The windows are beautifully crafted and have received lots of positive comments….  I found the whole team at Norrsken incredibly friendly and helpful…”

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Douglas Munro

Selfbuilder

Designed to deliver

From materials to management, every detail matters to us.
Creating homes that are warmer, quieter more efficient for decades to come.

Ready to get started? Call the team now on 01202 632777

Front elevation view of double-glazed features in a coastline renovation.

Passive House Standards

Engineered to meet or exceed Passive House benchmarks. Norrsken products support low-energy builds without compromising design.

Superior Thermal Efficiency

Exceptional insulation performance that transforms how your home feels, delivering year-round comfort while dramatically reducing energy consumption.

Full Range of Finishes

Design freedom to match your architectural style. Comprehensive color and finish options bring your exact vision to life.

Full Range of Materials

Premium timber and alu-clad options engineered for decades of performance and the aesthetic character your project demands.

Planning & Support

Expert guidance from concept to completion that transforms complex projects into seamless reality without compromise.

On-Site Project Management

We oversee every detail from delivery to final handover, ensuring seamless installation coordination that protects your timescales.