Supreme Vertical heavy duty retractable loft ladder

Supreme Vertical heavy duty retractable loft ladder

Premier Loft Ladders Ltd Third party certifications:
  • BSI Kitemark

    BSI Kitemark

    Certificate type

  • QA Certificate

    QA Certificate

    Certificate type

Supreme Vertical retractable loft ladder with insulated hatch door. Heavy duty aluminium ladder for wall hatches. Manufactured to EN 14975.

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+44 (0)345 9000195


Heavy duty aluminium retractable loft ladder. Manufactured from high strength die-cast aluminium alloy components contained within, wooden hatch box and class 4 airtight insulated trapdoor (non fire-rated) or steel hatch box and insulated trapdoor (F30, F60 or F90 fire rating).

The heavy-duty spring mechanism allows you to raise and lower the loft ladder with a minimum of effort (operating force of less than 3 kg). In addition, large steps and pre-assembled telescopic handrail offer comfort, safety and ease of egress.

Can be specified for use for conventional ceiling access and vertical wall access (see Supreme Vertical). The Supreme is also suitable for use with suspended ceilings. A weatherproof hatch for flat roof access is available.

Electrical operation possible for the wooden and steel hatch box and trapdoor units.

Features and benefits:

  • High strength aluminium retractable ladder.
  • Heavy duty load rating (200kg per tread).
  • Highly insulated trap door / hatch box.
  • Very easy to operate (less than 3kg operating load).
  • Available with fire resistant hatch box (30, 60 or 90-minute fire protection available).
  • Electrical operation is available.
  • Class 4 certified airtight seal (non-fire rated wooden hatch box).
  • Available made-to-measure to suit specific project requirements.
  • Telescopic 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.
  • Available with weather resistant flat roof hatch

General information


Ladder - natural aluminium, hatch - white




2 year full manufacturers warranty

Uniclass 2015

Pr_25_30_85_03 Aluminium loft laddersPrimary


L30/41 Loft ladders

L30/421 Loft ladders

Specification data - Aluminium loft ladders Enhanced data

Standard product features

Load bearing capacity (per tread):

200 kg.

Product Options

Hatch box/ trapdoor:

- Size (l x w):

  • The minimum opening width is 525 mm (for standard models only).
  • Up to 2500 mm: 750 mm.
  • 2501–2790 mm: 800 mm.
  • 2791–3090 mm: 900 mm.
  • 3091–3390 mm: 1000 mm.
  • 3391–3690 mm: 1300 mm.
  • 3691–3990 mm: 1400 mm.
  • 3991–4300 mm: 1500 mm.
  • 4301–4600 mm: 1600 mm.

- Material:


1.5 mm-thick with a steel trapdoor. The trapdoor is constructed from two layers of 1.5 mm-thick sheet steel infilled with 38 mm of mineral wool to give a 30 minutes fire resistance or 75 mm of mineral wool to give 60 or 90 minutes 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.


Hatch box is constructed from 18 mm thick laminated wood.

Insulated trapdoor:

An insulated 62 mm thick sandwich trapdoor which is white coated to the underside. The insulation U-value is 0.58 W/m²K. The trapdoor is also airtight to DIN 4570, class 4 and the hatch box has a rubber seal all the way around. White coated mitre cut strips are provided ready to be pinned on the underside of the hatch box.


Treads between 200–380 mm wide are 140 mm deep, treads between 430–560 mm are 160 mm deep. Tread width is dependent upon hatch box width and floor-to-ceiling height.


- Electrical:

Electrically operated stairway runs on 24 V DC. and is fully supplied with wiring, standby battery, transformer and operating switch. It is also possible to fit a further switch thereby allowing operation from above. Options can also include a lock switch, visual and audible warnings and smoke warning.

- Manual:

Counter balance spring operation.

Top operation:

Allows the stairway to be raised and lowered from above and below. The maximum floor to ceiling height would be 4300 mm, or 4600 mm subject to confirmation. A top-operation handle can be fitted for hatch box depths of 200 mm to 390 mm, with at least 700 mm of clear space behind one end of the hatch box to allow the handle to rotate. For deeper hatch boxes, or where there is no space behind the hatch box, the Supreme can be fitted with a boden cable release system and a second operating pole for use from above.

Digital objects

Platform Compatible Version Certified to



Revit 2017


Download now from NBS National BIM Library


Third party certifications

  • BS EN 14975
  • IFT Rosenheim : DIN ISO 12567-1
  • IFT Rosenheim : DIN EN 12207 / 12114

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