A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof.In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin, and common purlin.. Purlins also appear in steel frame construction. Steel purlins may be painted or greased for protection from the environment.

What size purlin should I use? A four-inch purlin can span 12 feet. A six-inch purlin can span 18 feet. An eight-inch purlin can span 25 feet. A ten-inch purlin can span 30 feet.. What supports a purlin? Roof purlins are supported either by rafters or building walls and the roof deck is laid over the purlins.. How far can a 2×6 Rafter span without support?

The Purlin Mill takes pride in the quality and service we provide to our many satisfied customers. We manufacture many of the building components required for steel building construction. We offer the following galvanized steel products in a variety of shapes, sizes, gauges and colors: Purlins, girts, eave struts, open channel/track, angle ...

In traditional timber truss construction purlins rest on the principal rafters of the truss. It is the practice in the steel industry that structural shapes are assigned representative designations for convenient short-hand description on drawings and documentation: Channel sections, with or without flange stiffeners, are usually referenced as C shapes; Channel sections without flange ...

sizes used in traditional roofing construction. All the figures are based on roofing tiles or slates laid on ... with purlin spacing of . Roof pitch between . 22.5 and 30 degrees ; with purlin spacing of . Roof pitch between ; 30 and 45 degrees . with purlin spacing of . Size of purlin in mm .

Mar 31, 2021 · Metal purlin pricing is based on the size of the job, thickness of steel, and the size of the purlin. For instance heavier gauge purlins will cost more than lighter gauge purlins. Deeper purlins require more steel than shallower purlins. And a 10” deep purlin will be about double the cost of a 4” purlin. Metal Purlin Pricing Chart

Steel-Structural-Merchant-TubeSteel C-Purlin-Carport Roofing 66-6X2-1425C 66-6X2-1425C 6707 C-Purlin, 6" x 2", 14ga, 25 ft | King Metals × A process is currently executing in the background, please wait for the operation to complete.

Jan 20, 2022 · Purchase Orders (PO): In construction, a purchase order is a document from the buyer that indicates their intent to purchase services and products from the seller, such as a supplier. 70. Purlin: A horizontal and longitudinal beam used on …

Purlin is a horizontal beam or bar used for structural support in structures, most often below the roof. Purlins are supported either by the building’s rafters or its walls. These are most commonly used in metal buildings, but in wood-frame structures, these also replace closely packed rafters. A roof’s purlins support the roof Deck’s weight.

Our Rafter Purlin Clips solve a unique problem for post frame construction. They allow you to run each rafter inline with a strong butt joint with uniformed spaced rafters. CPS Rafter Purlin Clips are a faster and stronger way to install rafter boards for post frame construction.