Curved Window Moulding
Wood Being the First Choice for Curved
Casing
Getting wood to bend around a circle is more than a little
challenging, if you need to create a half round window trim.
Casing then, made to match your curved window has hopefully
been included in your purchase. If not you could be in for
a little surprise in trying to source such a beast. It typically
runs in the neighborhood of $200-300.
Here is information on ordering a curved
casing for an elliptical window.
For a half round window trim, casing can be ordered by simply
giving the fabricator a diameter (B+) to fit your specific
needs. A template or paper pattern is not really necessary...
but be sure that it is infact a "half round" window
and not elliptical. The measurement "A" (from the
top to the horizontal) must be one half of the distance across
"B".

Very Important:
Make sure that the diameter that you order for your curved
casing is equal to "B" plus what relief you would
like to back set the casing from the edge of the jamb (usually
1/4" on each side), therefore the diameter of your half
round window trim = B + 1/4" (on the left) + 1/4"(on
the right).
Also make sure that you order "Casing Legs" to
match the profile of the curved casing you are ordering. Specify
the type of wood AND the profile or pattern you would like
your curved trim to be fabricated from.
A typically curved moulding for a common sized half round
window will come in a minimum of two pieces, necessitating
a splice, or seam at the top. Larger windows may come as 3
pieces. Ask.

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Products, specifications, and techniques shown
are meant as a guide to better understanding for the designer, builder,
and/or homeowner.
Owners of this site assume no liability for and
makes no claim to the suitability of any products or information
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from others.
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to adequately test for product suitability and application method
for a particular installation.
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