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Flexospan
Steel Buildings, Inc.

Address

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

Phone

800.245.0396
724.376.7221

Fax

724.376.3864

E-Mail

sales@flexospan.com


Z Roof Purlin and Z Wall Girt Structural Steel
Pre Engineered Buildings Flexospan provides standard, even-profile Z roof purlins and Z wall girts, as well as custom profiles and punching patterns. We manufacture any component from 1/2" subgirts to 12" section up to 10 gauge. Z purlins and Z girts are also available with other depths and flange widths. Contact Flexospan for information on custom rod purlin and girt structural steel dimensions. In this section you'll find sample calculations for determining wind and snow loads as well as Z purlin and Z girt weight tables.
	C AND Z SPAN LOAD TABLE

	Z 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.

Z Purlin and Z 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	3.984	4.375	N/A	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.

C Purlin and C Girt Structural Steel Pre Engineered Buildings 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.
	C AND Z SPAN LOAD TABLE

	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. < Back

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Pre Engineered Buildings

C Purlin and C Girt Structural Steel