




Manthorpe GL250 Drop Down Loft Access Door - 562mm x 726mm
The Manthorpe GL250 is an innovative drop down loft access door offering an energy-efficient, cost-effective alternative to traditional loft hatch solutions. Its revolutionary multi-point catch mechanism maintains an effective draught seal around the entire accessible opening, helping to meet the air leakage requirements of Part L of the Building Regulations and preventing moist warm air from entering the roof space. The low-profile, contemporary styling suits modern interiors, with the innovative hinge detail hidden when the door is closed. The frame screws directly up into ceiling timbers for straightforward single person installation. Insulated with 50mm expanded polystyrene, with higher insulation options available to achieve U-values down to 0.15 W/m²K. BRE airtightness tested (Report No. 283-506). Product code GL250; fitting size 562 x 726mm.
Benefits
- Multi-point catch mechanism maintains a full perimeter draught seal — meets Part L air leakage requirements
- Prevents moist warm air entering the roof space, reducing condensation and heat loss
- Available with multiple insulation options — from entry level up to U-value of 0.15 W/m²K
- Low-profile, contemporary styling to suit modern decors
- Hidden hinge detail for a clean, unobtrusive appearance when closed
- Frame screws up into ceiling timbers — single person installation
- Hinge pivot positioned to maximise accessible opening size
- BRE airtightness tested — Report No. 283-506
- EPD available
Good to know
- Product code: GL250; material: high impact polystyrene, injection moulded
- Fitting size: 562 x 726mm; accessible opening: 715 x 545mm
- Base insulation: 50mm expanded polystyrene; higher insulation options available
- Individually packaged in a polythene bag and cardboard box
- Always refer to the Manthorpe GL250 Product Information Sheet and Fitting Instructions before installation
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Manthorpe GL250 is an innovative drop down loft access door offering an energy-efficient, cost-effective alternative to traditional loft hatch solutions. Its revolutionary multi-point catch mechanism maintains an effective draught seal around the entire accessible opening, helping to meet the air leakage requirements of Part L of the Building Regulations and preventing moist warm air from entering the roof space. The low-profile, contemporary styling suits modern interiors, with the innovative hinge detail hidden when the door is closed. The frame screws directly up into ceiling timbers for straightforward single person installation. Insulated with 50mm expanded polystyrene, with higher insulation options available to achieve U-values down to 0.15 W/m²K. BRE airtightness tested (Report No. 283-506). Product code GL250; fitting size 562 x 726mm.
Benefits
- Multi-point catch mechanism maintains a full perimeter draught seal — meets Part L air leakage requirements
- Prevents moist warm air entering the roof space, reducing condensation and heat loss
- Available with multiple insulation options — from entry level up to U-value of 0.15 W/m²K
- Low-profile, contemporary styling to suit modern decors
- Hidden hinge detail for a clean, unobtrusive appearance when closed
- Frame screws up into ceiling timbers — single person installation
- Hinge pivot positioned to maximise accessible opening size
- BRE airtightness tested — Report No. 283-506
- EPD available
Good to know
- Product code: GL250; material: high impact polystyrene, injection moulded
- Fitting size: 562 x 726mm; accessible opening: 715 x 545mm
- Base insulation: 50mm expanded polystyrene; higher insulation options available
- Individually packaged in a polythene bag and cardboard box
- Always refer to the Manthorpe GL250 Product Information Sheet and Fitting Instructions before installation






