LWT Staircase

LWT attic ladder

The LWT is a wooden folding attic ladder designed for buildings with high energy efficiency requirements. Its structure of three folding sections is integrated into a wooden box with an insulating hatch, providing comfortable access to the space below deck and reducing heat loss.

The box includes three independent sealing joints, which guarantee high tightness when the hatch is closed. The hatch is made of a plywood board sandwich structure with 60mm thermal insulation.

Main features

• Wooden folding ladder frame with steel fixings.
• 60 mm thermal insulating hatch thick.
• Three sealing gaskets to improve airtightness.
• Thermal transmittance coefficient U = 0.51 W/m²K, tested according to EN ISO 12567-1.
• Air tightness class 4, according to DIN EN 12207.
• Load capacity up to 160 kg per step.
• Steps of 34 cm in length and 8 cm in depth.
• Width of the steps 34 cm, except in the 60 × 120 cm model, where it is 30 cm.
• Fixed handrail included as standard.
• Drive stick included for easy opening and closing.
• Protective feet for greater stability and floor protection.
• 50mm PVC finishing molding included.
• Snap closure mechanism.
• Manufactured and tested in accordance with the standard EN 14975.
• Easily recyclable wooden components.
• 3-year manufacturer's warranty.