Inside Z-Frame
An inside Z-frame is fitted inside the window recess, with a visible lip overlapping the front edge of the opening. It produces a crisp framed finish and is especially useful when you want the shutter to look neatly integrated with the window.
The Z-frame sits mostly inside the recess, so only the front lip projects into the room by approximately 10mm. That lip can also help conceal small gaps or slight irregularities around the edge of the opening.
How does a Z-frame mount to my window?
The fixing section of the Z-frame is secured inside the recess while the front lip overlaps the wall or architrave. Use our current frame-profile diagram for the precise dimensions and confirm the usable recess depth is clear of window hardware.
Can I install a Z-frame with an architrave?
Yes, if the shutter can be inside mounted and there is enough flat surface for the front lip to sit neatly. Z-frames work especially well with square and bullnose-style trim.
With highly decorative architraves, confirm that the Z-frame lip won’t cover moulding details you want to remain visible. If anything is unclear, contact trade support with a photo via the contact form.
Can I install a Z-frame with a window sill?
Yes. If the sill protrudes into the room, the bottom of the shutter frame is configured to finish on top of the sill instead of wrapping around it.
Fitting a Z-frame with obstructions
Window winders, handles, locks and screens must be checked before selecting an inside Z-frame. The important dimension is the clear depth between the front of the recess and the furthest obstruction. This should be at least 60mm.
If the obstruction reduces the available space, it may still be possible to use a Z-frame by positioning rails or a midrail strategically.
For the full specification, read our Managing Window Obstructions guide before releasing the order.
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