Amina BackboxSW345 V1.4 - Manual (Page 9)

New Build / new solid wall
Full wet skim finish
Backbox alignment required for plastering
Use shims between the back of the
BackboxSW and the inside of the cavity to
align the front edge of the BackboxSW with
face of the rendered wall.
Render coat
shims
This method allows the speaker to be skim
plastered over during the process of the
entire wall/ceiling being plastered - 2mm
maximum.
For solid walls /ceilings that have already been
rendered but not yet plaster skimmed.
06