installation instructions

The following instructions refer to the installation of a Foster undermount stainless steel sink on a solid surface countertop
only. The minimum thickness of the actual countertop material must be 1/2 “. However, the presence of a 1” counter-fra-
me around the sink is advisable. Requirements vary for installation on granite, marble or stone countertops. Please check
this out with your fabricator for more details.
TOOLS AND MATERIALS NEEDED FOR INSTALLATION
Eye protection (safety glasses) and ear protection are
highly recommended
6” bar clamps
Undermount template supplied with the sink silicone adhesive sealant
Undermount clips, screws and brass inserts supplied with
the sink (please note that these come in a separate plastic
bag, make sure you do not throw it away with the packing).
Stop block (needed to drill holes of equal depth)
3/8” thick plywood sheet to cut a template Tape measure
Pencil (not permanent) Router
Ball peen hammer (6 oz.) Drill and drill bit
Screwdriver File
Framing square 5/8” template guide
Alcohol Wood braces
STEP 1 (recommended for professional installers only)
Create a template
Using a framing square, make a line from front to back
of the bottom of the countertop, marking the center of
the sink. Draw a line, parallel to the front edge of the
countertop, to indicate how far back the sink should be
positioned. Normally this measure is 2” to 2 ½” from
the front, depending also on the countertop overhang,
and the type of sink. To make a template, position the
sink upside down on a piece of plywood, and draw a
line following its perimeter. As an alternative, you can
use the template which is provided with the sink, to be
also placed on plywood, as explained for the sink. However, the use of the actual sink ensures
a more accurate cutout. Mark the center of the sink on the template. If you use a 5/8” template
guide on the router, draw another line 1/16” outside the outline of the sink (this makes room for the
template guide). If you use other cutting methods, adapt this accordingly.
Be sure to cut on the inside of the template, in order to obtain the desired reveal.
The template size should be adjusted in order to obtain the desired type of reveal (overhang or po-
sitive reveal). Cut the plywood template, taking particular care to exactly follow the corner radius.
STEP 2 (recommended for professional installers only)
Make the sink cutout
Locate the center of the sink template, and align it with the center mark on the countertop. Posi-
tion the template with the front edge corresponding to the front edge line previously drawn on the
countertop.
Fasten the plywood template to the countertop using 6” bar clamps. Position the router over the
template and cut around it, ensuring that the router follows the edge of the template.
The nish of the inside of the cutout should be done according to the recommendations of the
countertop supplier.