Have 60mm (Z-Frame) or 70mm (L-Frame) of required window depth but have obstructions? You may still be able to fit your shutters as an inside fit.
How to get around obstructions
The overall depth of your opening will still be the same as the requirement listed at the start of this segment so that the blades can be fully opened. (eg. Z-Frame 60mm, L-Frame 70mm) If you do not have this then you cannot continue. This section is where you have obstructions that will eat into this depth requirement, but have these obstructions at specific vertical places in your window, example the very bottom, very top or middle and centred. (not the outer sides)
If you have obstructions at the very bottom of your window such as a window winder, you have about 100mm vertically from the bottom of the recess until the shutter blades start (This measurement will vary depending on your window size, sometimes the height at which the blades will start is 140mm, the absolute minimum height would be around 70mm if you have a window under 1M in height), so you can still fit them in the recess as the frame itself will take less than the full required depth that was listed further above. The depth requirements listed at the start of this segment are for the full opening of the blades to be unobstructed.
For example the Z frame only needs 39mm of depth from the nearest obstruction to fit the frame in the recess (If the obstruction is at the very bottom, or very top of your window opening such as a window winder, at this section it will not interfere with the blades opening provided the obstruction is not taller than 100mm, or 70mm for shutters with a height of less than 1M.) The inside L-Frame needs about 50mm of depth from the nearest obstruction at the bottom or top of your window, since we use a smaller L-frame for inside fits.
Another example would be If you have window winders in the middle of your window the premise is the same, to get around it you would order a customised mid rail at this point (or two mid rails!) so that there are no blades here to catch on your obstruction, provided you have the above minimum depths to fit the frame itself, and the full required window depth in the opening itself for the blades to open unobstructed in the other parts of the window.
In general though you should only really follow this rule, if your obstruction is at the very bottom of your window, very top of your window, or you know how to order the customised mid rail point if the winder is in the middle of your window. This is for advanced users who understand how the shutter works and can visualise these steps. Watch out for other obstructions such as handles, inward opening windows or other unforeseen issues in other parts of your window. If you don’t have the full required depth in the opening (60mm Z-Frame & 70mm L-Frame), or don’t fully understand these instructions then go for a face fix shutter or use another product.