BS/JIG
-9-
In the following example we will make
calculations for a recess to fit a sink measuring
597mm wide x 460mm deep.
Recess Width
I
The outside dimension of the sink width is
597mm, the thickness of the sink wall in this
example is 30mm.
I
Therefore 597mm minus 60mm (2 x wall
thickness) = 537mm.
I
Subtract the 10mm overhang for each side
of the sink: 537mm minus 20mm = 517mm.
I
This is the recess width to be cut.
Recess Depth
I
The outside depth dimension of the sink
is 460mm, the sink wall thickness is
30mm.
I
Therefore 460 minus 60mm (2 x wall
thickness) = 400mm.
I
Subtract only one 10mm overhang for the
rear of the recess, but then add half the
thickness of the sink wall at the front, in
this case half of 30mm = 15mm.
I
Therefore 400mm minus 10mm (rear
overhang) = 390mm plus 15mm (half sink
wall thickness) = 405mm.
I
This is the recess width to be cut.
The overall recess to be cut is 517mm x 405mm.
Example
Internal sink
depth
400mm
Cut out depth
405mm
Overall
sink depth
460mm
Cut out width
517mm
Inside sink width
537mm
Overall sink width
597mm
MANU/BS v1 25/3/11 16:33 Page 9