Galvanized Steel Purlin
Full of professional experience and a lot of projects, KRS offers
galvanized purlin & profile at very competitive price through a
complete supply chain.
KRS supply a complete range of structural C and Z purlins and girts
for industrial buildings, garages, verandahs, and carports, in fact
anywhere that strong reliable steel framing is required.
Manufactured from quality galvanised steel, this is a fully
integrated system allowing for flexible design options. Supplied
plain or punched, galvanised purlins are manufactured from high
tensile steel for increased strength, reduced weight, and a long
Purlins are roll formed into two standard shapes C and Z. While
each has individual characteristics, both perform effectively and
in many instances the choice of one section over the other can come
down to the personal preference of the designer.
Generally, C sections are used for simple span constructions with
the purlins butted at internal supports. In cases where
deflection is a design limitation and the building is of a suitable
size, single C Sections can be used over two or more bays.
Z sections with one broad and one narrow flange are designed to
nest neatly and are intended for lapping at internal supports.
Lapping over internal supports produces structurally continuous
lines of purlins for the length of the building. Structural
continuity results in improved rigidity but lapping also doubles
the thickness of purlin over supports where the bending moments are
greatest. This results in a saving of up to 50%, but typically 30%
to 40%, of the steel in the purlins compared with simple span C
sections. Where additional strength is required from the purlins,
for example in end bays or where additional loads are applied
locally, Z sections of the same depth but greater thickness can be
lapped as required.
In some applications such as grain or coal handling facilities or
wood machining factories, the upturned lip of conventional and C
section purlins may form a trap for dust and debris. For this
reason, Z sections are also available with downturned bottom
lips. These sections are normally only used over simple spans
with the ends butted rather than lapped.
KRS purlins are crisp, clean and square and by any assessment are a
quality product. There is no need to tolerate rounded corners,
inaccurate lengths, or out of square purlins any more. Insist on
quality KRS purlins for your project.
Experienced technical Representatives are able to advise you on
pricing and delivery requirements. Our pricing is competitive, and
we ask only for the opportunity to provide a price for your next