Table of Contents
How much does 4 inch purlin cost?
Metal Purlin Pricing Chart
| 14 Gauge, Galvanized | 14 Gauge, Red Oxide | |
|---|---|---|
| 4” X 2” | $2.00- $3.00 Per linear Ft. | $2.00- $2.50 Per linear Ft. |
| 6” X 2” | $3.00- $4.00 Per linear Ft. | $2.50- $3.00 Per linear Ft. |
| 8” X 2.5” | $4.00- $5.00 Per linear Ft. | $3.50- $4.00 Per linear Ft. |
| 10” X 2.5” | $4.50- $5.50 Per linear Ft. | $4.00- $5.00 Per linear Ft. |
How far can you span 4 inch C purlin?
12 feet
The sizes are as follows: A four-inch purlin can span 12 feet. A six-inch purlin can span 18 feet. An eight-inch purlin can span 25 feet.
How much does a 4 purlin weight?
Available in special lengths, high resistance quality.
| Material | Measure AxBxC | Weight Lbs/Ft |
|---|---|---|
| Material | Measure AxBxC | Weight Lbs/Ft |
| 4 Ga 14 Ft 20′ – 2 | 4″ x 2″ x 0.75″ | 2.18 |
| 4 Ga 14 Ft 25′ – 2 | 4″ x 2″ x 0.75″ | 2.18 |
| 4 Ga 14 Ft 30′ – 2 | 4″ x 2″ x 0.75″ | 2.18 |
What size purlin do I need?
As per generals rule and guideline, you need a 4- inch (100mm) purlin for 3m span, 6- inch (150mm) purlin for 4m & 5m span, 8- inch (200mm) purlin for 6m & 10- inch (250mm) purlin for 8m span which can safely transfer the load to trusses.
What length does C purlin come in?
Cee Purlin lengths are cut to length from 6′-45′ in 1/8″ increments, though 20′ and 25′ are the most commonly chosen lengths.
What are Z purlins used for?
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.
How far can a 2×4 purlin span?
Purlins to support roof loads are permitted to be installed to reduce the span of rafters within allowable limits and shall be supported by struts to bearing walls. The maximum span of 2-inch by 4-inch (51 mm by 102 mm) purlins shall be 4 feet (1219 mm).
How far can you span 6 inch Z purlin?
A six inch purlin can allow to span 18 feet. An eight inch purlin can allow to span 25 feet. A ten inch purlin can span 30 feet.
What is a purlin on a metal building?
Purlins are supported either by rafters or the walls of the building. They are most commonly used in metal buildings, though they sometimes replace closely spaced rafters in wood frame structures. The purlins of a roof support the weight of the roof deck.
How do you install purlin on a metal roof?
Purlin Installation Purlins are installed horizontally under metal roofs. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. Purlins are 2 by 4 feet and are installed much like metal roofing.
What are the different types of steel purlins?
There are three types of steel purlins: Rectangular hollow section (RHS), Cee or C purlin and the Zed or Z purlin which is shaped like a letter Z. Cee purlin or C purlin is shaped like a squared-off letter C. C Purlins are horizontal structures that are used to support the load from the roof deck or the sheathing.
What is a purlin lap on a roof?
Purlins are 2 by 4 feet and are installed much like metal roofing. They give added support to the roof and also provide a nailing surface for the end panels and drip edge. Purlin laps must be bolted in the top web hole and the lower flange holes at both ends of the lap as shown below.