On Oct 11, 6:38 pm, Tim Lamb wrote:
Apart from the use of a hammer, is there any easy way of checking that
double glazing units fitted to my new front door are actually toughened?
Elsewhere in the house, glass below waist height has an etched kite mark
and BS number.

Is such glass necessary where the width is only a bit over 4"?

regards

--
Tim Lamb

IME all toughened units should have a kitemark on both panes of a
toughened DG unit.

JimK