Pictures??? Hard for me to visualize and make a suggestion.

Sorry, no pics. I just got my new digital camera, and I'm still figuring it out...believe me...I'm working on that task as we speak! :)

If you trim/remove the sill, you can just replace it if you decide to take down the shutters. That seems like the easiest solution. A gap of 3/8" could be caulked, but I don't think it wouldn't look as nice. (If it were in my house, I would always look at the caulking and it would bug me...but I'm kinda crazy about stuff like that!)

Quickly figure out that camera:) I am very confused about where the gap is in relation to the wall.

I'm having a hard time picturing what you're describing. I know your're trying to figure your camera, but during the mean time any pictures on the internet? I have outside mount plantation shutters through out my house so I might be of some help if I had pictures. Can you draw it?

Ok, I know what you mean about visualizing, I'm like that too.

Here goes....the sill cap is a "cover" that goes over the existing window sill. It is simply cosmetic as it is larger than the existing sill and would make the shutters "blend" better with the sill. This is an outside mount.

From the side, as if you rested your cheek on the wall, a gap is visible because the sill cap can't slide toward the window quite far enough (because of the "fancy" trim on the sill edge).

I'm still practicing with that new camera. Could anyone post pics of their plantation shutter/sill situation? Maybe I would luck out and be able to say "yes yes--like your situation!"

Thanks for trying to help me figure this out.

Here are some pictures of my plantation shutters. Do any of these look like your issue?

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Here's mine but I don't think it's going to help. Mine are outside mount but my windows are called picture frame windows and have no sill. Maybe it will help you see what would happen if it were cut.

Have you called the company to see if they make a deeper sill cap?

3/8" is pretty large. Any chance a thin strip of molding could be used to hide it.......say a 1/4 round or even a thin flat strip? I've used those for lots of coverups on kitchen cabinets.

mldao--it's kinda like your first picture, except the sides of the shutter will be sitting on the sill cap, which is covering my actual sill. The sill cap has a side piece that goes back to the wall.

annz--the installer's store said Norman only has one size sill cap; good idea on the filler strip--I'll check into that...

Thanks again to all of you helping me figure this out!

I'm still dealing with this....aaarrgghh! Now we are wondering if we can just leave off the sill cap.

Do any of you have pics of outside mounted plantation shutters that used the existing sill?

Thanks, I appreciate your help!