Last updated on July 12th, 2023 by Myla Pablo
In a roof, a purlin is a longitudinal, horizontal structural element. Purlin plate, major purlin, and common purlin are the three forms of purlin used in traditional timber construction.
Also, Purlin refers to roof framing components that span parallel to the building eave and support the roof decking or sheeting in steel construction. The rafters or walls support the purlins in turn. Purlins are most typically found in Metal Building Systems, where Z-shapes are employed to provide flexural continuity between spans.
C Purlins are part of the metal ceiling framework that is used as either a wall angle or metal furring to support the load of the gypsum or acoustic board.
What are the types of Purlin?
A purlin can be classified as channel sections, with or without flange stiffeners, are usually referenced as C shapes; channel sections without flange stiffeners are also referenced as U shapes; and point symmetric sections that are shaped like the letter Z are referenced as Z shapes. Regional and even manufacturer-specific section designations exist. Secondary parts such as purlins (roof) and girts (wall) are typically cold-formed steel C, Z, or U sections, (or mill rolled) C sections in steel structure construction.
While for secondary member applications, cold formed members can be more efficient on a weight basis than mill rolled sections. Z sections can also be nested for transportation bundling and lapped at the supports to provide a structurally efficient continuous beam spanning numerous supports on the building.
The plane surface of the C purlin on one side is used as a side for cladding due to its easy installation process on metal framework.
The table below shows the latest retail July 2023 prices of c purlins in Philippine Peso price per pieces including its standard sizes and various thickness
Price and Standard Sizes of C Purlins per pcs in the Philippines
|2″ x 3″ x 6.0 M|
|GA 23 (0.70 mm)||790.00|
|GA 22 (0.80 mm)||840.00|
|GA 20 (1.00 mm)||1180.00|
|GA 18 (1.20 mm)||1300.00|
|GA 15 (1.50 mm)||1950.00|
|2″ x 4″ x 6.0 M|
|GA 23 (0.70 mm)||880.00|
|GA 22 (0.80 mm)||1130.00|
|GA 20 (1.00 mm)||1500.00|
|GA 18 (1.20 mm)||1700.00|
|GA 15 (1.50 mm)||2000.00|
|2″ x 6″ x 6.0 M|
|GA 23 (0.70 mm)||1100.00|
|GA 22 (0.80 mm)||1400.00|
|GA 20 (1.00 mm)||1800.00|
|GA 18 (1.20 mm)||2120.00|
|GA 15 (1.50 mm)||2500.00|
|2″ x 7″ x 6.0 M|
|GA 23 (0.70 mm)||1405.00|
|GA 22 (0.80 mm)||1505.00|
|GA 20 (1.00 mm)||2135.00|
|GA 18 (1.20 mm)||2460.00|
|GA 15 (1.50 mm)||2800.00|
Tolerance for Philippine Standard is + or -10%
UPDATED: Construction Material Prices for C-Purlins in the Philippines (July 2023)
UPDATED: All Construction Prices are based on retail prices around hardware in Metro Manila
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