The original plan for this bay window called for a walk-in
installation over cantilevered floor joists. But when local
zoning restrictions prevented builder Scott Babcock from
creating the additional floor space, he had to come up with a
different approach. Spurred on by the client's request for
"something interesting," the inventive builder drew inspiration
from the boats moored just off the edge of the lawn outside the
The epoxy-bonded curved plywood apron
beneath this waterfront bay window was designed to mirror the
forms of the boat hulls moored just beyond the
Babcock created the hull-shaped apron by laminating a double
layer of 3/8-inch bendable plywood sheathing to a series of
plywood ribs with an epoxy resin often used by boat builders.
The ribs were located to sister against a series of five custom
steel brackets, padded with 2x4 cleats, that supported the
window. To provide a way to screw the completed apron to the
brackets from within, a series of temporary access holes were
cut into the sheathing with a recip saw.
The bendable plywood skin of the "hull"
draws its support from curved plywood ribs. Tarpaper templates
were used to plot the vertical joints between the straight
central section and the tapered ends.
Welded angle-iron brackets attached to
the framing provide structural support for the bay window.
Access holes were later cut into the sheathing between brackets
to permit screwing the nonstructural apron to the brackets from
When the insulation contractor arrived to install icynene in
the walls, he also completely filled the shell via the access
holes. The outside of the hull was waterproofed with more epoxy
resin and primed, then top-coated with latex paint. The result
draws enthusiastic appreciation from boaters and landlubbers