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Contact Info

Flexospan
 Steel Buildings, Inc.


Address

P.O. Box 515
253 Railroad Street
Sandy Lake, PA
16145


Phone

800.245.0396
724.376.7221


Fax

724.376.3864


E-Mail

sales@flexospan.com
 
 


C Purlin and C Girt Structural Steel

Wind, Snow, & Weight Tables

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" subgirts to 12" section up to 10 gauge. C purlins and C girts are also available with other depths and flange widths. Contact Flexospan for information on purlin and girt structural steel dimensions.

In this section you'll find sample calculations for determining wind and snow loads as well as C purlin and C girt weight tables.
 

 Cee Purlin and C Girt Structural Steel
C AND Z SPAN LOAD TABLE Cee Purlin and C Girt Structural Steel 
   
C PURLIN AND GIRT SECTION PROPERTIES
   
STANDARD HOLE PUNCHING PATTERNS
  (Blank form to layout hole punching patterns)
 
Sample Calculations
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
     
Live (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. Please 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 1/2" Fl 3 1/2" Fl 2 1/2" Fl 3 1/2" Fl 2 1/2" Fl 3 1/2" 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 N/A 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.
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