LXW-B Attic Ladder Upper Hatch with Gas Piston Assist

The LXW-B is a piston-assisted upper hatch that installs on the attic side of an attic ladder opening. It forms a gasket-sealed enclosure over the entire ladder hardware, closing off the opening from above when the ladder is not in use.

The sealed construction reduces air leakage at the ladder opening and can improve the insulation value of selected attic ladder models by up to 100%. It also blocks dust, insulation fibers, and debris from entering the ladder opening and falling into the living space below. Gas pistons provide smooth, controlled operation for safe attic access.

Why Do Contractors and Building Owners Specify LXW-B?

• Reduces air leakage at the attic ladder opening: The gasket-sealed enclosure closes the ladder opening from the attic side, creating a continuous barrier that limits conditioned air from escaping into the attic.
• Improves thermal performance: The LXW-B can improve the insulation value of selected attic ladder models by up to 100%, reducing heat loss in winter and heat gain in summer.
• Keeps debris out of the living space: The sealed construction prevents dust, insulation fibers, and attic debris from entering the ladder shaft and the room below.
• Gas piston-assisted operation: Gas pistons control the opening and closing of the hatch, so it moves smoothly and stays in position without requiring manual support.
• Left or right hinge configuration: The LXW-B is available in left-hand (L) and right-hand (R) hinge orientations to match the attic ladder layout.

Ready to order? Request a quote for the LXW-B to confirm compatibility with your attic ladder model and to production lead time for your project.

Key Product Specifications

• Type: Attic ladder upper hatch (installs from attic side)
• Size:5" x 47"
• Box height: 7-3/4"
• Hatch thickness: 1-3/8"
• Operation: Gas piston-assisted
• Sealing: Gasket-sealed perimeter
• Hinge: Left (L) or right (R) — specify at time of order
• Installation: Self-assembly; installs from the attic side

What Should You Confirm Before Ordering LXW-B?

• Attic ladder compatibility: The LXW-B is designed for use with standard FAKRO folding and insulated wooden or metal attic models (such as LWP, LTK, LWT, LWF, LMP, LMS)
• Hinge orientation: Specify left-hand (L) or right-hand (R) hinge orientation based on your attic layout and how the hatch needs to open.
• Opening size: Confirm the rough opening matches the 22.5" x 47" footprint of the LXW-B before ordering.
• Production lead time: Request a quote to confirm availability and lead time for your order.

Installation Notes

• The LXW-B ships as a self-assembly kit. Read the full installation instructions before beginning work. Installing the product incorrectly invalidates the warranty and may cause the hatch to fail.
• The hatch assembles from four frame panels (A, B, C, D) that interlock at the corners. Apply adhesive at the corner joints, press together, and confirm all four corners are at 90° before securing with corner brackets.
• Secure the hinge side first, then the latch side, then the remaining two sides. Use fasteners through the pre-drilled mounting holes.
• The gas piston (E) attaches between the frame and the hatch panel. Confirm the piston connects at both ends before operating the hatch.
• Always stand to the side of the hatch (not in line with the opening) when operating. Don’t stand in the path of the piston arm.
• Left-hand (L) and right-hand (R) configurations require different hinge and piston positioning. Refer to the installation diagrams to confirm orientation before assembly.

Who Specifies LXW-B and Where Is It Used?

Contractors and building owners specify the LXW-B where an existing attic ladder is creating air leakage, thermal loss, or debris infiltration at the ladder opening. It’s commonly added to new construction and retrofit projects where attic ladder performance needs to be improved without replacing the ladder itself.

Common applications include:

• Residential homes: Reducing heat loss and air infiltration at attic ladder openings in finished living spaces.
• Multi-family buildings: Sealing attic ladder openings in units where attic insulation continuity is required.
• Retrofit projects: Adding a thermal and air seal to an existing attic ladder without replacing the ladder assembly.

Not sure if the LXW-B is the right fit? Browse our attic and ceiling access products to compare options and find the right fit.

Frequently Asked Questions

1. What does LXW-B do?
The LXW-B is an upper hatch that installs on the attic side of an attic ladder opening. It creates a gasket-sealed enclosure above the ladder hardware, reducing air leakage and blocking debris from entering the ladder shaft and living space below.

2. How much can LXW-B improve insulation performance?
The LXW-B can improve the insulation value of selected attic ladder models by up to 100%. Actual performance depends on the attic ladder model it is paired with.

3. Is LXW-B compatible with all attic ladders?
The LXW-B is designed for use with FAKRO LXW attic ladders. Confirm compatibility with your specific ladder model before ordering.

4. What hinge orientations are available?
The LXW-B is available in left-hand (L) and right-hand (R) hinge configurations. Specify the correct orientation for your attic layout at the time of order.

5. Does LXW-B require professional installation?
The LXW-B ships as a self-assembly kit and does not require professional installation. However, the installation instructions must be followed in full. Improper installation invalidates the warranty.

Why Buy LXW-B From Access Doors and Panels?

At Access Doors and Panels, we confirm compatibility, hinge orientation, and lead time before you place your order, so the right configuration ships the first time.

Have any questions? Contact our team or call +1-888-327-5471 for guidance on the LXW-B and to confirm if it’s the right fit for your attic ladder.