Designed to withstand fire for up to 30 minutes. Suitable for properties with more than 3 floors or passive houses requiring a fire-rated loft ladder. 60mm deep insulated white trap door with metal locking key and double lock for improved draught exclusion and security. Supplied fully assembled. Fire Rated to 30mins Min-Max. Floor to Ceiling Height: 2.75-2.75m Max. Static Vertical Load: 150kg 60mm Insulation Thickness Anti-Slip Feet & Treads Flat Treads Handrail Included 1 Year Guarantee 60mm Deep Insulated White Trap door 27mm Frame with Continuous Draught Seal Fire Rated to 30mins Min-Max. Floor to Ceiling Height: 2.75-2.75m Max. Static Vertical Load: 150kg 60mm Insulation Thickness Anti-Slip Feet & Treads Flat Treads Handrail Included 1 Year Guarantee 60mm Deep Insulated White Trap door 27mm Frame with Continuous Draught Seal