BS/JIG
-8-
The pin holes for setting the depth are 20mm
apart, therefore a packing piece may be needed
if the jig needs to be set in between these
increments, depending on the sink size.
Although the sink manufacture provides the
outer dimensions of the sink, it is important that
the internal dimensions of the sink are measured
to calculate the recess to be cut.
It is recommended that the worktop overlaps the
sides and back of the sink by 10mm.
The front of the sink should project out from the
worktop by half the sink wall thickness.
Marking out the Recess
I
Mark the width of the recess on the top of the
worktop. This measurement can be
calculated as follows: Inside sink width minus
20mm (2 x 10mm overhang).
I
Mark the depth of the recess on the top. This
measurement can be calculated as follows:
Inside sink depth minus 10mm then add half
the thickness of sink wall.
I
Copy dimension marks to the underside of
the worktop.
Sink wall
Inside sink width
10mm
Depth of recess
Inside sink depth
Width of recess
The sink should project out at the front of the
worktop by half the width of the sink wall.
S
d
If you are fitting a series of sinks of the
same design, beware that the dimensions
of ceramic sinks can vary slightly during
manufacture, therefore each one should be
measured individually to calculate the
correct recess to be routed.
Sink Dimensions
Width
Height
Depth
MANU/BS v1 25/3/11 16:33 Page 8
