We have installed this type of application using a matching faux wood blind on a standard rectangular window below with the vinyl stock arch on the top portion of the window. For the price, the results are always surprisingly excellent. The main advantages of this program are the price and the unexpected look and feel of these vinyl stock arches. The arches even come with movable louvers, which is what you would expect on a much more expensive fan style shutter.
The restrictions to using the vinyl stock arch are that we can only provide 4ea basic colors - in the neutral zone, antique white, alabaster or birch - and our sizes are limited to about 72" in width. Additionally, some chalking and adjustments may be needed at install to accommodate windows that are not perfectly square. This is especially true for stand alone arches, as some light bleed can be seen along the bottom. It is a manageable situation by an experienced installer, but something to be aware of.
Bottom Line - you can have a beautiful movable vinyl arch in your arched shape window at half the cost, or less, of other window covering options, if you are comfortable with a neutral color faux wood option in your space.
We would love to help you with your wood and faux wood blind project. Also, for a rough idea of what your project might cost check out our online wood and faux wood blind calculator. For an estimate of what your vinyl stock arch project might cost, please send us your dimensions via this contact form and we will email you an estimate.