Columbus Flat Roof Aluminium Concertina Access Ladder

5 - 6 Weeks
Estimated Delivery 5 - 6 Weeks

A fully weather proofed roof access system, complete with concertina ladder, timber hatchbox and trapdoor. Excellent German design from Columbus, means that difficult access to your flat roof area is a thing of the past.

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Due to the complexity and variations of this product, you will need to discuss your individual requirements with our technical department before proceeding. We will then be able to provide you with a price and specification that exactly suits your situation. Please use the contact form or telephone us during our normal office hours. We look forward to hearing from you.

01243 785 246

For international shipping, contact us to discuss your needs.

  • Watch the Columbus Flat Roof Concertina Access Ladder being installed.

  • Waterproof upper cover clad with galvanised steel sheet.
  • The upper cover comes Insulated (40mm thick) and complete with an espagnolette bolt for locking. It is also fitted with a double rubber lip seal for secure closing.
  • Insulation of upper cover (U-Value Uo = 0.68 W/m²k).
  • Further grades of Insulation available for the upper cover - see Extra Options section.
  • The concertina loft ladder is manufactured from die-cast aluminium and stores completely within the hatch box.
  • Suits floor to ceiling heights up to 4.6m.
  • Available in a range of standard opening sizes & made to measure sizes - see Technical Data section.
  • Comes supplied with 1 x Telescopic Handral as standard.
  • Includes a pair of Non Slip ladder feet (durable plastic) for extra security.
  • The trapdoor supplied is insulated (white finish to the underside) and is fitted with a sprung loaded catch (ring pull operated) for lowering and closing the door.
  • Insulation of trapdoor (U-Value Uo = 0.58 W/m²k).
  • The draught proofed timber hatchbox (white painted) is constructed from 19mm plywood (water repellent & fungicidal treated) and measures 750mm deep.
  • Deeper timber hatchboxes available - see Technical Data section.
  • Supplied with white architraves to enhance the finish.
  • Unit complete with Operating Pole & full Installation Instructions.
  • Tested to EN 14975 (European Ladder Standard) with a 200kg per tread resilience.
  • Air permeability Class 4 tested (by IFT Rosenheim in accordance with EN 12207 / 12114).
  • A range of addtional extras for the product available - see Extra Options section for details.
  • Roof access loft ladder also available in an electric version option.
  • 30 / 60 & 90 minute fire rated options available - refer to Spec Sheets (Downloads section).
Columbus Flat Roof - Standard Sizes
Ceiling Height Structural Opening Size Hatchbox
Frame Height
Tread Width Tread Depth
Up to 2790mm 1200mm x 600mm 750mm 250mm 140mm
  1200mm x 700mm 750mm 350mm 140mm
  1300mm x 700mm 750mm 350mm 140mm
  1400mm x 700mm 750mm 350mm 140mm
# The prices for the above standard size units are located in the Extra Options section.

Columbus Flat Roof - Made to Measure Sizes
Floor to Ceiling Height: From 1850mm to 4600mm *
Opening Length Sizes: From 900mm to 1690mm
Opening Width Sizes: From 600mm to 1200mm
Hatchbox Frame Depth Sizes: From 680mm to 2070mm
Ladder Tread Width Sizes: 200mm / 250mm / 300mm / 350mm / 380mm / 430mm / 480mm & 580mm
(dependent on opening width dimension)
Ladder Tread Depth Sizes: 140mm deep for Tread Width Sizes: 200mm to 380mm
160mm deep for Tread Width Sizes: 430mm to 580mm
# Prices for Made to Measure Units can be obtained by contacting the Sales Office on 01243 785 246

 Larger ceiling heights will require a more generous opening size.

Columbus Flat Roof - Extras
Products Price (£)
Flat Roof Loft Ladder (Ceiling Height: Up to 2790mm)
- Opening Size: 1200mm x 600mm // 1200mm x 700mm //
  1300mm x 700mm or 1400mm x 700mm
- Hatchbox depth: 750mm
Made to Measure Units (see Technical Data section) P.O.A
Fire Rated Options (30 / 60 & 90 mins) P.O.A
2nd side Telescopic Handrail
(requires a hatchbox depth of more than 750mm)
100mm Insulation to Upper cover providing 
a U value = 0.31 W/m²k)
Hatchbox frame depths up to 1770mm available P.O.A
Handrails fitted inside of the Hatchbox P.O.A
Upper cover clad with aluminium or titanium-zinc sheet P.O.A
Top operating handle for upper cover P.O.A
Cylinder lock fitted to upper cover P.O.A
Upper cover with electrical heating system 
(used during winter conditions to melt snow)
Dehumidifier for the Hatchbox P.O.A
Safety Guard Rail for roof area P.O.A

Above Prices include VAT

This product is not on a 1-3 working days schedule.
It comes directly from our supplier as we do not hold stock.

This is a made to order / bespoke product (not marked as ‘Estimated Delivery 1-3 days’) and once the manufacturing process has been started, you will not be able to cancel your order. If a cancellation enquiry is made and manufacturing has not started then we will issue a full refund back onto the same payment type as the product(s) were first purchased.

The delivery timescale is referenced at the top of the product page and will be confirmed to you at the time of order. 

Please read our full terms and conditions regarding the delivery procedure.

The delivery will be made by a transport carrier organised by the manufacturer, so it is important that you provide a contact telephone number.
As the transport carrier will contact you 24 hours prior to the delivery being scheduled.
Deliveries are usually made between 8:00am to 6:00pm Monday to Friday (excludes Bank Holidays).

Orders can be placed on our website for delivery destinations within the UK Mainland (England, Wales and Scotland).
For delivery destinations situated in the Highlands & Islands, Isle of Wight, Channel Islands, Isle of Man and Northern Ireland, please contact our Sales Office by email - to obtain a transport costing for the product.

For European or most Worldwide delivery destinations please email our Sales Office - with your enquiry detailing the product you are interested in, together with your full delivery address and contact information.
We can then return a Quotation for the product and delivery costs once this has been sourced from the transport company.