These plates are really slim, with a thickness of only 2mm and have visible fixings.

 

Dimensions
Square plate dimensions 86x86mm
Rectangular plate dimensions 146x86mm
Projection of plate 2mm

 

Wall box
Depth of wall box required is 35mm, with the exception of:-

6 gang rocker grid, 133x133x40mm deep

Architrave switches, 1 gang fits Wandsworth 1715 wall box

Architrave switches, 2 gang fits Wandsworth 1716 wall box

87202, 87212, 87222 and 87232 Fused connection units, 47mm

Blank plates, 25mm

Shaver socket, 47mm

Not suitable for dry lining wall boxes