We understand how important it is to choose the correct ladder for an application

To help make that task easier we have summarised key loft ladder technical data for our product range and offer a library of technical drawings (in .dwg and .pdf formats).

Also available are a selection of loft ladder installation and operation instructions.

Furthermore, architects, designers, engineers and industry professionals can download NBS product specifications from NBS Plus and download Supreme and Elite loft ladder models/objects from Bimstore

upreme heavy duty aluminium retractable electric loft ladder with insulated trapdoor

Loft ladder technical data, BIM components and NBS Plus product specifications…

Quality:

The Supreme, Designo, Mini, Elite, Piccolo, Cadet and ProfiLine are manufactured to EN 14975 (DN 4570).

(Please note that where 250 mm wide treads are required in the Supreme and Elite models, these do not comply with EN 14975 (DN 4570))

Insulation:

Wooden Loft Ladders

  Type Operation U-value (heat transfer coefficient) W/m2K Class 4 air permeability certified
Designo 3-part folding Manual 0.60 Yes
Designo Passivhaus 3-part folding Manual 0.29 Yes
Cadet 3 3-part folding Manual 0.90 Yes
Cadet 2 2-part sliding Manual 0.90 Yes
Esca 11 ISO-RC 3-part folding Manual 1.30 Yes
ProfiLine F30/F30 Plus/F60 3-part folding Manual 0.92 Yes

Aluminium Loft Ladders

  Type Operation U-value (heat transfer coefficient) W/m2K Class 4 air permeability certified
Supreme Concertina/ Retractable Manual or Electric 0.58 Yes
Supreme Passivhaus Concertina/ Retractable Manual or Electric 0.28 Yes
Supreme F30 Concertina/ Retractable Manual or Electric 0.80 Yes
Supreme F30 Steel Concertina/ Retractable Manual or Electric 0.57 No
Supreme F60/F90 Steel Concertina/ Retractable Manual or Electric 0.93 No
Supreme Vertical Concertina/ Retractable Manual 0.8 No
Mini Concertina/ Retractable Manual 0.80 Yes
MiniLine F30/F30 Plus/F60 Concertina/ Retractable Manual 0.92 Yes

Weather Resistant Flat Roof Hatch

  • Roof hatch = U-value 1.1 W/m2K
  • Trapdoor = U- value 0.8 W/m2K
  • Maximum (optional):
  • Roof hatch = 0.31 W/m2K
  • Trapdoor = 0.8 W/m2K
  • Weatherproof roof hatch/flat roof exit with wooden hatch box and trapdoor F30 standard – U-value 1.1 W/m2K
  • Weatherproof roof hatch/flat roof exit with steel hatch box and trapdoor F30
  • Standard – U-value 0.57 W/m2K
  • Weatherproof roof hatch/flat roof exit with wooden hatch box and trapdoor F90
  • Standard – U-value 0.93 W/m2K
Fire Resistance:

F30, F30 Plus, F60 and F90 fire rated loft ladders are tested to DIN 4102 Part 2 by either MPA Braunschweig or MPA Stuttgart. Copies of the certificates are available upon request.

Supreme F30, F60 and F90 steel hatch box construction:

1.5 mm thick steel hatch box with a steel trapdoor. The trapdoor is made from 2 layers of 1.5 mm thick sheet steel infilled with 38 mm of mineral wool to give a 30 minute fire resistance or 75 mm of mineral wool to give a 90 minute fire resistance. There is a 29 mm wide lip to the bottom of the lining around the external edge, which is designed to butt up against the ceiling to help prevent flame and smoke ingress. Similarly, there is also a lip to the bottom of the steel trapdoor, which extends to within 15 mm of the lip on the lining.

For use in reinforced concrete ceilings from 180 mm thick.

Supreme F30 wooden hatch box construction:

Wooden hatch box and trapdoor are made from fire-resistant B1 chipboard. Suitable for use in fire retardant concrete ceilings.

MiniLine F30, F30 Plus and F60 wooden hatch box construction:

Wooden hatch box and trapdoor are made from fire-resistant B1 chipboard. The MiniLine F30 and F60 fire rated loft hatch and ladders are suitable for use in fire retardant wooden beams and concrete ceilings. MiniLine F30 Plus fire rated loft hatch and ladder is only suitable for use in fire retardant concrete ceilings.

ProfiLine F30, F30 Plus and F60 wooden hatch box construction:

Wooden hatch box and trapdoor are made from fire-resistant B1 chipboard. The ProfiLine F30 and F60 fire rated loft hatch and ladders are suitable for use in fire retardant wooden beams and concrete ceilings. ProfiLine F30 Plus fire rated loft hatch and ladder is only suitable for use in fire retardant concrete ceilings.

Important – Please ensure that you maintain the fire resistance by filling the gap between the fire rated hatch box and the structural opening with a fire resistant mortar to a depth of at least 180 mm.

Materials:

The Elite ladder and the ladder within the Supreme model are manufactured from die-cast aluminium alloy.

The Piccolo ladder and the ladder within the Mini are manufactured from extruded aluminium alloy.

Load Bearing:

Supreme – 200 kg per tread – overall unit 500kg/m2

Elite – 200 kg per tread – overall unit 500kg/m2

Mini – 150 kg per tread – overall unit 350kg/m2

Piccolo – 150 kg – per tread – overall unit 350kg/m2

Designo – 180 kg per tread – overall unit 420kg/m2

Cadet 3 – 150 kg per tread – overall unit 350kg/m2

Cadet 2 – 150 kg per tread – overall unit 350kg/m2

Esca 11 – 150 kg per tread – overall unit 350kg/m2

ProfiLine – 150 kg per tread – overall unit 350kg/m2

Tread Rise:

Subject to the floor to ceiling height the usual tread rise will be between 277mm to 280mm.

Construction of hatch box and trapdoor:

Supreme – hatch box and trapdoor both 18mm thick laminated wood.

Supreme DD – 66mm thick trapdoor and 80mm thick top cover, both laminated wood.

Supreme F30 with a wooden hatch box and trapdoor. The hatch box is made from 19 mm chipboard and coated with Pyroex. The trapdoor is made from 28mm chipboard and coated with Pyroex

Elite backboard is made from 18mm blockwood

Mini – hatch box and trapdoor both 18mm thick laminated wood.

Designo – hatch box and trapdoor both 18mm thick laminated wood.

Designo DD – 67mm thick trapdoor and 66mm thick top cover, both laminated wood.

Cadet

ProfiLine

Esca 11

Hatch box Minimum depths:

Supreme with wooden hatch box – 240mm

Supreme DD – 630mm

Supreme F30 with steel hatch box – 240mm

Supreme F60 / F90 with steel hatch box – 240mm

Supreme F30 with wooden hatch box and trapdoor – 240mm

Mini – 170mm

MiniLine – 220mm

Designo – 185mm

Design DD – 630mm

Cadet 3 – 185mm

Cadet 2 – 220mm

Esca 11 – 140mm

ProfiLine – 220mm

When installing a deep hatch box within a void e.g. an area between a suspended ceiling and the main ceiling, then we would recommend the use of bracing from the main ceiling to the outside of the hatch box to add stability.  

Minimum lengths for electrical operation:

(Lengths below are applicable for a floor to ceiling height of up to 2500mm high and will increase with greater heights)

Wooden hatch box and trapdoor (without insulation) 1150 mm

Wooden hatch box and trapdoor (with insulation) 1200 mm

Steel hatch box and trapdoor F30 1150 mm

Steel hatch box and trapdoor F90 1170 mm

Top operating handle

The ceiling thickness must not exceed 450 mm and there must be clearance of at least 700 mm behind the opening

BIM Components

The Supreme stairway and Elite commercial loft ladders are available as BIM objects from Bimstore.co.uk.

Follow the links below or visit Bimstore.co.uk to download the components.

NBS Plus

To help designers specify our products in just one click, a selection of technical specifications for our most popular products can be found on NBS Plus.

CAD drawings and installation/operation manuals…

Supreme Loft Ladder

Supreme stairway with a wooden hatch box and insulated trapdoor – 6000221B.

Supreme stairway with a wooden hatch box and insulated trapdoor with 1 additional tread – 6000222A

Supreme stairway with a wooden hatch box and insulated trapdoor with 2 additional treads – 6000223B

Supreme stairway with a wooden hatch box and insulated trapdoor with 3 additional treads – 6000224B

Supreme stairway with a wooden hatch box and insulated trapdoor – vertical access – 6000238B

Supreme stairway with a wooden hatch box and trapdoor F30 – 6000225A

Supreme stairway with a steel hatch box and trapdoor F30 – 6000227B

Supreme stairway with a wooden hatch box and trapdoor plus weatherproof roof hatch plus 1 additional tread – 6000211B

Supreme stairway with a wooden hatch box and trapdoor plus weatherproof roof hatch plus 2 additional treads – 6000212B

Supreme stairway with a wooden hatch box and trapdoor plus weatherproof roof hatch plus 3 additional treads – 6000213B

Supreme stairway with a wooden hatch box and trapdoor F30 plus weatherproof roof hatch – 6000214A

Supreme stairway with a steel hatch box and trapdoor F30 plus weatherproof roof hatch – 6000215A

Supreme stairway with a steel hatch box and trapdoor F30 plus weatherproof roof hatch plus 1 additional tread – 6000216A

Supreme stairway with a steel hatch box and trapdoor F90 plus weatherproof roof hatch – 6000286A

Elite Loft Ladder

Elite ladder – 6000231B

Elite 9 handrail B

Elite 9 vert handrail B

Elite 10 handrail B

Elite 10 vert handrail B

Elite 11 handrail B

l

DWG File

Elite 11 vert handrail B

l

DWG File

Elite 12 handrail B

Elite 12 vert handrail B

Mini Loft Ladder

Mini stairway – 6000237B

Escalmatic Electric Loft Ladder

Escalmatic electric loft ladder – 7000101A

Piccolo and Piccolo Premium Loft Ladder

Picciolo and Piccolo Premium loft ladder – 6000416

Designo Loft Ladder

Designo Wooden Loft Ladder – 6000392A

Quadro Loft Ladder

Quadro 3 part wooden – 6000426

Quadro 2 part wooden – 6000429

Compatta Space Saving Staircase

Compatta – straight staircase

Compatta – ‘L’ staircase

Loft Ladder Installation Manuals

Premier Loft Ladders – installation instructions

Elite installation

Elite with Special Backboard installation

Installation manuals for other loft ladders and accessories are available upon request.  Please contact us.

HELP

Can we be of help?

If you require help in choosing the right loft ladder, would like to discuss your application, arrange a site visit or request further information, please do not hesitate to contact us…

Telephone No: 0845 9000 195    Email address: sales@premierloftladders.com

Get in touch

Pin It on Pinterest

Share This