Woman Owned – 57 years | 1969-2026. Sandy Lake, PA
C PURLINS and C GIRTS
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″ steel subgirts to 14″ 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 purlin and girt structural steel dimensions. Steel wall girts and roof purlins are manufactured and sold onsite.
Purlin & Girt Coatings:
- Galvanized
- Stainless Steel
- ZAM
- Basic Primer
Roof purlins are used to support metal roofing panels. Wall girts are used for the fastening of metal siding. They are available in stainless steel or galvanized, and can be prime painted and/or coated in ZAM.
C purlin and C girt Resources
In this section you’ll find sample calculations for determining wind and snow loads as well as C purlin and C girt weight tables.
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 | 10 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 | 2 1/2″ Fl | 3 1/2″ Fl |
| 4″ Cee | 2.213 | 2.656 | 2.734 | 3.281 | 3.776 | 4.531 | 4.818 | 5.781 |
| 6″ Cee | 2.656 | 3.099 | 3.281 | 3.828 | 4.531 | 5.286 | 5.781 | 6.745 |
| 8″ Cee | 3.099 | 3.541 | 3.828 | 4.375 | 5.286 | 6.041 | 6.745 | 7.708 |
| 10″ Cee | 3.541 | 3.984 | 4.375 | 4.922 | 6.041 | 6.797 | 7.708 | 8.672 |
| 12″ Cee | 3.984 | 4.427 | 4.922 | 5.468 | 6.797 | 7.552 | 8.672 | 9.635 |
| 14″ Cee | 4.427 | 4.869 | 5.468 | 6.015 | 7.552 | 8.307 | 9.635 | 10.599 |
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.
Request A Quote
Please complete the form with your project details and click SUBMIT REQUEST at the bottom. A sales representative will contact you promptly to discuss your inquiry.
To speak with a sales representative,
call 1-800-245-0396 or email
sales@flexospan.com
