Flexospan - Structural Steel Members - Steel z purlins & z girts

Z PURLINS and Z GIRTS

Z Purlin and Z Girt Structural Steel

SPAN LOAD TABLES (Zs & Cs)

SECTION PROPERTIES

Flexospan provides standard, even-profile Z purlins and Z 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 z purlins and z 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

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.

Z Purlin and Z 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" Zee	2.656	n/a	3.281	n/a	4.531	n/a
8" Zee	3.099	3.541	3.828	4.375	5.286	6.041
10" Zee	3.541	3.984	4.375	n/a	6.041	6.797
12" Zee	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.