Small Keystone
with Field Fabricated Trim
(stacked pattern)

Small Keystone
with Field Fabricated Trim.
(stacked pattern)

Curve in trim stones
will match various window radii.
The edges must be adjusted to point directly to the centerline

Small Keystone
with Small Curved Trim Stone. Small Curved Trim
7"h x 10-1/2"w

Large Keystone 
with Large Curved Trim 
Stone. Large Curved Trim
9"h x 13"w

Small Keystone
with Small Window/Door Side Trim used
on mildly arched window frame.
9" h x 7" w
(rectangle)

Triple Keystone
with Large Curved Trim Stone blending
to straight window/door side trim.
13" h x 9" w (rectangle)