Devon&Devon Boston Assembly Instructions Manual page 19

14)
Once it is as steady as possible, position the S-brackets (L)
under the basin and mark the holes (2 for each bracket) for fastening
them.
15)
At this point it is possible to
remove the basin and drill the
holes in the wall corresponding
to the marks.
Mount the basin's S-brackets, fixing
them with screws and plugs (not
supplied).
16)
Before permanently fixing
the basin in place it is necessary
to mark the holes for mounting
the wall supports for the glass
shelf.
First measure the height from the floor
to the centre of one of the supports on
the legs of the structure.
18