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Return to Perka Library Clear Span Defined The definition is an easy one to define and is simply how wide you want your building to be. What is important about defining a clear span is understanding the cost savings on the Frame when center columns can be used. For example, Perka offer a 50’ to 120’ wide building using our 10,000 model. Below is an example of what customers save, vs. using 8,000 model, in frame cost using center columns, a 20 live load and 90 mph wind load with a height of 14':
On 50’ wide: Low savings (5%)

On 60’ wide: Low savings (15%)

On 70’ wide: 1 row of centre columns saves 24%

On 80’ wide: 1 row of centre columns saves 30%

On 100’ wide: 1 row of centre columns saves 21%

On 120’ wide: 1 row of centre columns saves 16%
2 rows of inside columns saves 35%

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CONTACT INFORMATION Perka Building Frames

1111 Alabama St.

St. Joseph, MO 64504

Phone: 800-467-3752

Fax: 816-238-7700

Email: perka@perka.com

CANADA OFFICES R.R.&D. Enterprises, Inc. Perka Building Frames

633 Chemin Ste. Claire

Riviere Beaudette, QC JOP 1RO

Phone: 877-369-3197

Fax: 450-269-2341

Email: rrd@bellnet.ca

Western Canada Tom Williams Perka Buildings BC

Kelowna

British Columbia, Canada

Phone: 250-212-1158

Fax: 250-762-0511

Email: missmontmartre@telus.net

Eastern Canada J.J. Thevenot J.E.M. Direct Link, Inc.

3396 Harwood Blvd.

Vaudreuil-Dorion, Quebec J7V 8P2

Phone: 866-536-4950

Fax: 800-535-6751

Email: jj@jemdirectlink.com