Overview
An outside L-frame carries the shutter in front of the window on the architrave or wall. It can resolve a shallow or obstructed recess. Check the continuous fixing surface and allow for the frame's projection and the opening panels.
What is an L-frame?
An L-frame has a right-angled cross-section. Inside and outside versions have different fixing positions and profiles: the inside version sits in the reveal, while the outside version carries the shutter in front of the opening. Select the version that matches the mounting method.
What is an outside mount L-frame?
The outside L-frame fixes to the front of the trim or surrounding wall. It moves the shutter in front of shallow recesses or hardware that would block an inside installation. Allow approximately 65 mm of projection and check nearby walls, furniture and the panel swing.
How does an outside L-frame mount to my window?
Find a continuous, level fixing surface around the opening. The illustrated outside L-profile uses a 38 mm frame footprint; decorative trim must offer a suitable flat band, not a groove or rounded ridge. On square-set openings, check sound fixing points in the wall around the recess.
