Designo - Wooden Loft Ladder - Passivhaus Certified - Loft Ladder
Verified by manufacturer 3 months ago
High strength wooden loft ladder with insulated and airtight hatch box. Available Passivhaus (Passive House) certified.
Application
Loft applications.
Description
The Designo wooden loft ladder perfectly balances aesthetics with strength and quality. Available as a certified Passivhaus loft ladder (by the Passivhaus Institute).
The three-part folding heavy-duty wooden loft ladder is contained within, and attached to, an insulated wooden hatch box. It offers excellent energy efficiency (0.60 W/m²K) thanks to a highly insulated trapdoor with six-point locking mechanism providing a Class 4 certified airtight seal.
It is also fitted with the patented WDL sealing and insulation tape, which provides a perfect seal between the hatch box and building and saves time during installation.
Features and benefits:
- Wooden folding loft ladder.
- High strength load rating (180 kg per tread).
- Available with Passivhaus (Passive House) certification.
- Highly insulated trap door/ hatch box (U-value: 0.60 W/m²K).
- Class 4 certified airtight seal.
- Available made-to-measure to suit specific project requirements.
- Includes handrail and anti-slip treads to provide comfort and safety.
- Supplied with a two-year full warranty and a ten-year parts warranty.
- Low maintenance with excellent durability.
- Supplied ready to install.
General information
Color | White Guidance for specification option: Hatch. |
Finish | Natural Guidance for specification option: Loft ladder. |
Material | Wood |
Shape | Rectangle |
Length | Bespoke |
Width | Bespoke |
Height | 2800 mm 3300 mm Manufacturer guidanceMaximum heights. Minimum aperture sizes apply. |
Warranty description | Two year Guidance for specification option: Full manufacturer warranty. Ten year Guidance for specification option: Parts warranty. |
Uniclass | |
CAWS | L30/41 Loft ladders L30/421 Loft ladders |
Product range |
Specification data - Hardwood loft ladders
Standard | To EN 14975, DIN EN 12207/ 12114 (Class 4), TÜV SÜD Product Service GmbH. |
Format | Folding. |
Timber species | Pine. |
Strings | |
Number of sections | Three. |
Floor-to-ceiling height (minimum) | 2300–2800 mm.Guidance for specification option: Insert requirements. Special order.Guidance for specification option: 2300–3300 mm. Insert requirements. |
Handrails | Top section. |
Treads | 330 x 80 mm. |
Loft trapdoor | |
Minimum opening size (l x w) | 1200 x 550 mm.Guidance for specification option: For ceiling heights up to 2800 mm. 1400 x 550 mm.Guidance for specification option: For ceiling heights up to 3300 mm. |
Operating mechanism | Spring assisted trap door.Guidance for specification option: Supplied with operating pole and hook. |
Hatchbox/ trapdoor | 18 mm thick laminated wood. |
Size (l x w) | 1200 x 600 mm. 1200 x 700 mm. 1300 x 700 mm. 1400 x 700 mm. Special order. Guidance for specification option: Insert requirement. Available 1200–1600 x 550–800 mm. Minimum length of 1400 mm for ceiling heights greater than 2800 mm. |
Depth | 200 mm. Guidance for specification option: Standard. Special order. Guidance for specification option: Insert requirement, available 190–710 mm. |
Passive House Certified | Not required. Required. Guidance for specification option: Minimum hatch box depth of 290 mm. |
Accessories | None. Additional handrail. Guidance for specification option: Right-hand side only. Upper loft hatch (Designo DD). Guidance for specification option: Combined U-value 0.29 W/m²K. Requires minimum depth of 670 mm. Three side upper level guard rail. |
LoadBearingCapacity | 180 kg. Guidance for specification option: Per tread. |
Sustainability data
Contains Red List materials | No Manufacturer guidanceContains Pentachlorophenol in compliance with EN 13986 (<5ppm) and Formaldehyde in compliance with 717-1 with (<0.05 ppm) and fulfils class E1. |
Country of product manufacture | Germany |
Material | Wood |
Manufacturing plant location | |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | Manufacturer guidanceWe hope to be able to publish this data from early 2025. |
Recyclability | 90% of all materials used in the product and packaging are recyclable. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | Manufacturer guidanceData currently unavailable. |
Expected Life | 30 year Guidance for specification option: With correct installation and maintenance. |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 Revit | Revit 2017 | 2 |
 IFC | - | 2 |
Literature
Wooden Loft Ladder with Highly Insulated Hatch Box - Designo
Case studies
Loft ladders for Passivhaus (Passive House) projects
Passivhaus certified loft ladder with fire protection
Passive House certified loft ladder
Keeping in the warmth - Loft Access Hatch and Ladder