ABSTRACT
The majority of construction materials are supplied to metric
dimensions; however, a few materials still retain their imperial
designations. Where appropriate, the listings are taken from
British and European Standards or trade organizations and will
therefore not necessarily correspond to the full ranges offered by
individual suppliers. Inevitably, changes in published Standards
and Building Regulations will occur, affecting availability of par-
ticular products. Specifiers are, therefore, always advised to check
current availability and delivery times.
