A practical L-frame option with a removable trim section, allowing secure fixing while keeping screws neatly hidden.

What Is an Insert L Frame?

The insert L frame is still shaped like the letter “L”, just like a standard L-frame. The difference is that it includes a removable trim section at the front of the frame.

• Front trim section clips in and out
• Screws are fixed through the main body of the frame
• Trim piece covers screw heads once installed
• Clean finish with no visible fixings

Once the trim is clipped back into place, the fixing points are completely hidden.

Why Choose an Insert L Frame?

This frame is particularly useful where the shutters need to be securely fixed back to the window structure.

• Allows screws to pass through the strongest part of the frame
• Helps maintain rigidity and alignment
• Reduces the risk of twisting during installation
• Ideal where structural fixing is important

By fixing through the main section of the L-frame rather than the thinner rear section, the frame remains solid and straight.

Ideal for Sash Windows

Sash windows often require careful fixing to ensure the shutter frame remains stable and properly aligned.

• Secure fixing into the window framework
• Helps prevent frame distortion
• Maintains a straight and rigid installation

For this reason, the insert L frame is commonly chosen for sash window installations.

Suitable for Café Style Installations

The insert L frame can also be a strong choice for certain café style shutter installations.

• Useful when fitting a four-sided café shutter
• Provides a secure top fixing where needed
• Allows fixing back into the window framework
• Keeps screw heads concealed once finished

This makes it both practical and visually tidy.

Appearance & Availability

• Adds a subtle decorative edge when trim is clipped in
• Commonly used on our UK shutter range
• Available across all shutter ranges
• Combines structural strength with clean finishing

While primarily chosen for practical reasons, the clipped-in trim also gives a neat, defined edge to the shutter frame.

Insert L Frame – At a Glance

• L-shaped frame with removable front trim
• Screws fixed through main frame body
• Hidden fixings once trim is clipped in
• Ideal for sash windows
• Strong choice for certain café installations
• Commonly used on UK shutters
• Available across all shutter ranges