Loft ladder clickFIX® 56 PRO+

Top loft ladder construction

Top-insulated construction of a loft ladder with 2 sealing strips in the casing. Trapdoor (without wood), which means that heat loss and cold bridges are prevented from the loft ladder. FSC® certified wood. Produced in Denmark. White casing.

Product Properties

U-value (W/m²* K)
50 mm

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The loft ladder is manufactured with top-insulation. Two sealing strips in the casing and a trapdoor construction without wood prevent heat loss. The 2 sealing strips provide an extra tightness, which means, among other things, that the loft ladder have no cold bridges. It provides a good saving on the heating bill compared to traditional loft ladders. DOLLE clickFIX® 56 PRO+ is insulated with 50 mm expanded polystyrene (EPS) standard U-value: 0.64 W/m2*K. The low u-value is particularly remarkable, as all the products have been tested as a building component similar to doors and windows. Usually, u-value indications are given as a calculated center value for the trapdoor, which is misleading in connection with energy calculations. The loft ladder have been tested at the IFT Rosenheim Institute for both U-value and air tightness.


DOLLE clickFIX® is the market's most unique loft ladder series on the market. The patented ClickFIX® technology provides fantastic insulation value and is designed for easy installation. It is designed so that the ladder and the trapdoor easily can be replaced with the clickFIX® system. Click mounting can be done without use of special tools. THe loft ladder can be mounted by one person as the loft ladder's weighs about 25% less than traditional loft ladder.


The extra strong ladder has a pine stringer of 8.3 cm and 6.9 cm non-slip beech tread, which provides a good comfort. The 3-part ladder has 12 treads and a ladder width of 35.8 cm. The ladder is finished with grey plastic feet, to protect the floor covering. The strength of the entire loft ladder is tested according to EN 14975 which has a max. user weight of 150 kg, but tests the stairs up to 265 kg.


An extension for the loft ladder can be purchased. It allows for an extra ceiling height up to 323.4 cm - max. 14 steps. The extension joint is 47.2 cm long and has the same width as the ladder of 38.8 cm.

Max floor-to ceiling height 120 x 70: 2803 mm.

Max floor-to ceiling height 115 x 55: 2731 mm.

Control air leakage in your home

Vapour barrier with TwinActive-foil seals your product for optimal heat-insulation. Easy to attach.

Optional accessories:

Plastic feet, architraves and handrails are not included as standard.


1 Opening size (length)
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2 Opening size (width)
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3 Floor-to-ceiling height
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4 Total going
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Product number
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U-value (W/m²* K)
Attic ladder type
Folding ladder
Ladder material
Trapdoor material
Sandwich construction
Trapdoor thickness
56 mm
50 mm
Casing thickness
18 mm
Outside casing (length)
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Outside casing (width)
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Casing (height)
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Tread rise
250 mm
Tread material
Solid beech
Tread thickness
17,50 mm
Tread depth
69 mm
String material
String thickness
21 mm
String depth
83 mm
Maximum load
150 kg
Product weight
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