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Z Purlins - Galvanized

Z purlins get their name because they resemble the letter "Z.  The shape enables the purlins to overlap. Galvanized metal Z purlins are in stock. Immediate availability and delivery. Buy manufacturer direct and save.

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Delivery Throughout The USA and Canada

Purlins for metal roofing

Galvanized Zee Purlins


What are Z Purlins?

Z purlins resemble the shape of a letter "Z" and are also referred to as Zee or Zed purlins. They are roof framing members that span parallel to the building eave and support the roof decking or sheeting. The metal purlins are in turn supported by rafters or walls.

Zed purlins are secondary steel framing members used for both roof and wall. Zee Purlins are commonly chosen for the ability to end lap.

What size and lengths do Z purlins come in?

Metal Z Purlins are available in a wide variety of sizes and lengths. See graph below for sizes of galvanized metal Z purlins. Custom sizes and lengths available with a two week lead time. Z purlins are in stock for immediate will call or delivery. Delivery trucks servicing the entire United States.

Availability Chart

See the graph below for the sizes of galvanized Z purlins that we keep in stock for immediate pick up or delivery.

Custom sizes and lengths available with a two week lead time. 




Z Purlins For Metal Buildings

Designed to reduce the distance the rafters have to span, metal purlins support the loads from the roof deck and help to prevent the roof from sagging. Western States Metal Roofing offers two types of galvanized purlins:

  • C Purlin - Cee or C purlins are shaped like a squared-off letter C. They are often used for structural support in walls and as floor joists in addition to roofs.
  • Z Purlin - The zee or Z purlin is shaped like a letter Z. Its shape allows the purlin to overlap with others at the joints. This gives zed purlins the potential to be much stronger than C purlins. Z Purlins are mainly used in walls or for large roofing projects.

Advantages of Z Purlins

  • Ability to span length
  • Purlin construction is easier to assemble and handle
  • Assured dimensions and straightness
  • High durability, versatility and uniform quality
  • Low transportation cost due to decreased weight

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