You are viewing content for United Kingdom.
Choose a country to see content for your location. Changing region will navigate you to the homepage.
S305A/T Inward Open Timber / Alu-Clad Timber Panel Entrance Door
Verified by manufacturer 1 day ago
EPD
Certificate type
Inward opening insulated panel door.
Application
Suitable for modern or traditional low-energy and Passive House-standard homes, refurbishments, retrofits and multi-dwelling developments.
Whether it's converting industrial barns into a contemporary sanctuary or pushing the boundaries of sustainable design in Scandinavian-style passive houses, our projects span every architectural vision.
We work with clients on a wide range of projects throughout England, Wales and parts of Scotland.
Description
The Inward Opening Insulated Timber Composite Door (Alu-clad S305A or Timber S305T) combines energy efficiency, durability, and design flexibility.
With a timber composite panel and aluminium-clad engineered frame, it offers excellent insulation and allows contrasting door and frame colours. It mirrors the S303 outward-opening door in an inward-opening design and is also available as a hybrid alu-clad timber model, with alu-clad frame and timber door leaf.
Features and benefits:
- Inward-opening insulated door with a timber composite panel for excellent thermal performance.
- Engineered timber frame with aluminium cladding for durability, weather resistance, and low maintenance.
- Achieves typical U-values of approximately 0.74 W/m²K.
- Aluminium cladding allows different colours on the frame and door for enhanced design flexibility.
- Available with sidelights
- Both door and frame are available in a full range of RAL colours for customisation.
- Mirrors the S303 door profile in an inward-opening design, providing consistency across projects.
- Combines the strength of engineered timber with the resilience of aluminium.
- Suitable for highly energy-efficient homes and Passive Houses.
- PAS 24 Certified.
General information
Color | Beige Black Blue Bronze Brown Manufacturer guidanceBoth aluminium and timber components available in a full range of RAL colours for complete design flexibility. |
Finish | Powder-coated Textured Coated Stained Painted |
Material | Wood Timber Aluminium |
Shape | Rectangle Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | L20/480 Doorsets L20/55 Doorsets L20/430 Wood doorsets L2/304 Wood external doorsets |
SKU Code | S305A |
Specification data - Composite doorsets
Classification data | |
Configuration | Single-leaf, single-action. Double-leaf, double-action. Manufacturer guidanceInward opening. |
Doorset size | Manufacturer guidanceConsult manufacturer for details and insert size requirements. |
Performance | |
Acoustic performance | 33 dB. |
Thermal | 0.74 W/m²K. Guidance for specification option: Glass U-value: 0.53 W/m²K. Manufacturer guidanceWhole window U-value. |
Intruder resistance | |
Minimum requirement | To PAS 24. |
Application | Manufacturer guidanceConsult manufacturer for details and insert requirements. |
Conformity | Manufacturer guidanceConsult manufacturer for details and insert requirements. |
Frame | |
Materials | Engineered timber with aluminium cladding. |
Threshold | Fiber threshold. |
Perimeter seals or inserts | Weather sealing: EPDM sealing; 21 mm |
Finish | Polyester powder coated (alu-clad timber door frames). Sprayed painted finish (for timber door frames). Timber stains (for timber door frames). |
Colour | RAL colour. Guidance for specification option: Available in a full range of RAL colours. Consult manufacturer for details and insert requirements. |
Film thickness (minimum) | Coating applicator to determine. |
Frame accessories | Manufacturer guidanceConsult manufacturer for details and insert requirements or omit. |
Door leaf | |
Thickness | 78 mm. Manufacturer guidanceAvailable in a variable range of frame depths from 94 mm to 122 mm. Consult manufacturer for details and insert requirements. |
Core | Insulated core. |
Panel details | Timber composite panel. |
Facings | |
External | Engineered timber. |
Internal | Engineered timber. |
Perimeter seals | Weather sealing: EPDM sealing; 21 mm |
Glazing | |
Type | 48 mm triple glazed, two panes Low-E, argon filled. |
Finish | Sprayed. |
Colour | |
External | RAL colour. Guidance for specification option: Available in a full range of RAL colours. Consult manufacturer for details and insert requirements. |
Internal | As external. RAL colour. Guidance for specification option: Available in a full range of RAL colours. Consult manufacturer for details and insert requirements. Timber stain, white. Timber stain, grey. Timber stain, clear. Timber stain, light. Timber stain, mid. Timber stain, dark. |
Door accessories | Manufacturer guidanceConsult manufacturer for details and insert requirements or omit. |
Hardware | Hinges - ASSA ASSA (Fix). Hinges - Maco espagnolette. Handles - Hoppe. Handles - MILA. Handles - Coastal. |
Accessories | Manufacturer guidanceConsult manufacturer for details and insert requirements or omit. |
Air permeability | To EN 12207, Class 4. |
Watertightness | To EN 12208, 7A. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Estonia |
Manufacturing plant location | |
Material | Wood Timber Aluminium |
| Carbon dioxide equivalent | |
Carbon dioxide equivalent, as defined in BS EN 15804 Certified | |
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/m²) Stage:A1–A3 ('Production stage') Normalised unit : 2.752 (kg CO₂ eq/kg) Declared unit : 84.7 Manufacturer guidance
| |
Recyclability | Manufacturer guidanceMetal hardware is recyclable through scrap metal programs. The majority of the door (timber, insulation) undergoes energy recovery rather than material recycling at end-of-life. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Expected Life | 50 year |
Product certifications
Product certifications
EPD
Environmental Product Declaration - S303, S305, S307, S309 Doors
Literature
Literature type
Inward Opening Alu-Clad Panel Door (S305A)
Norrsken Door Handles Brochure
Case studies
Award-Winning Yorkshire Passive House
Award-Winning Low Energy Home
Similar products from Norrsken Company Ltd
S307A/T Triple-Glazed Outward Open Timber / Alu-Clad Timber Framed Entrance Door
S309A/T Inward Open Timber / Alu-Clad Timber Framed Entrance Door