Metal Roofing & Siding Panels, Purlins & Girts
Self-Storage & Industrial Metal Buildings


C PURLINS and C GIRTS


Cee Purlin and C Girt Structural Steel

C Purlin and C Girt Structural Steel


  SPAN LOAD TABLES (Cs & Zs)
  SECTION PROPERTIES
  HOLE PUNCHING PATTERNS


Flexospan provides standard, even-profile C purlins and C girts as well as custom profiles and punching patterns. We manufacture any component from 1/2" steel subgirts to 12" section up to 10 gauge. Steel C-purlins and C-girts are also available with other depths and flange widths. Contact Flexospan for information on custom purlin and girt structural steel dimensions.

Purlin Coatings:

  • Prime Painted

  • Galvanized

  • Stainless Steel

  • ZAM

Cee Purlin and C Girt Structural Steel


Calculating Wind & Snow Loads

Below are sample calculations for determining wind and snow loads:

Calculation Formula Example
Wind load
(sizing girts)
Wind load (lbs/sq ft)
x .75
x girt spacing (ft)
x wind coefficient
(typically 1.1)
= Allowable load/linear foot of girt
20 psf
x .75
x 5 Ft
x 1.1

= 82.5 plf
Snow load
(load on purlin)
Snow load (lbs/sq ft)
x purlin spacing (ft)
= Allowable load/linear foot of purlin
20 psf
x 5 ft
= 100 plf

Note: These sample calculations are basic. Many different variables can affect loading. For example, drift loading, building height, geographic location, etc.  Contact Flexospan if special conditions exist.



C Purlin and C Girt Weight Table
Weight per Linear Foot


  16 Gauge

14 Gauge

12 Gauge

Size
(nom)

2"
  Fl  
3"
   Fl  
2"
  Fl  
3"
  Fl  
2"
  Fl  
3"
  Fl  
6" Cee 2.656 n/a 3.281 n/a 4.531 n/a
8" Cee 3.099 3.541 3.828 4.375 5.286 6.041
10" Cee 3.541 3.984 4.375 4.922 6.041 6.797
12" Cee 3.984 n/a 4.922 5.468 6.797 7.552

Note: These weights are for three or more spans based on uniform bay spacings. Contact Flexospan for help on calculating weights for non-uniform bays.