HB&G has updated our product testing to comply with changes to the Building Codes (IBC/IRC) and to the Acceptance Criteria for Fiberglass Columns. The 2 major changes that impacted PermaCast® and PermaLite® were: • Eccentric Axial Loading – the new maximum allowable load values are based on eccentric (offset) axial load as opposed to concentric (centered) axial loading. • Increased Safety Factor – the safety factor on the allowable load was increased from 2.5 times to 5 times Eccentric loading of columns is not recommended by HB&G. Building Code Compliance
Round Tapered PermaCast® Plain and Fluted Eccentric Loading Bottom Avg. Allowable Avg. Ultimate Concentric Diameter Load (Lbs.) Load (Lbs.) Load (Lbs.) 6” 4580 22900 8000 8”* 4600 23000 10000 10”* 4690 23450 14000 12”* 4800 24000 18000 14” 7800 39000 20000 16” 8250 41250 20000 18” 10000 50000 20000 20” 10000 50000 20000 22” 10000 50000 20000 24” 10000 50000 20000 28” 10000 50000 20000 30” 10000 50000 20000 Square PermaCast® Plain, Fluted, RoughSawn®, and Recessed Panel 6”* 5100 25500 8000 8”* 5150 25750 10000 10”* 5640 28200 14000 12”* 5900 29500 18000 14” 8500 42500 20000 16” 9500 47500 20000 Round No-Taper PermaCast® Plain and Fluted 6” 4580 22900 8000 8” 4590 22950 10000 10” 4670 23350 14000 12” 4750 23750 18000 14” 7000 35000 20000 16” 7000 35000 20000 18” 7000 35000 20000 24” 9000 45000 20000 Craftsman Plain and RoughSawn® PermaCast® 10”x 6”x 66” 9000 45000 10000 10”x 8”x 66” 9000 45000 10000 10.25”x 7.5”x 7’ 7000 35000 10000 12”x 8”x 5’ 8000 40000 14000 12”x 8”x 6’ 8000 40000 14000 12”x 8”x 66" 8000 40000 14000 12”x 10”x 6’ 8000 40000 14000 12”x 10”x 10’ 8000 40000 14000 14”x 12”x 9’ 8000 40000 14000 16”x 9”x 6’ 9000 45000 14000 16”x 9”x 8’ 9000 45000 14000 16”x 9”x 58” 9000 45000 14000 16”x 12”x 6’ 9000 45000 14000 16”x 12”x 8’ 9000 45000 14000 Round No-Taper PermaLite® 8” 4000 20000 8000 10” 4000 20000 10000 Square PermaLite® Plain and Recessed Panel 6” 3000 15000 5000 8” 3000 15000 6500 10” 3000 15000 7000 12” 3000 15000 7500 *Covered in accordance with ICC ESR-1361 / FL# 3102 Conforms with 2018 IBC/IRC Note - Eccentric (off-center) loading has a 5 times safety factor. - Eccentric (off-center) loading of columns is not covered by the warranty.
RigidWrap® cPVC ColumnWrap Size
Structural Load Capacity (Lbs.)
6” 8”
4350 4350 4350
10” 12”
4350 RoundWood Columns 6” 2000 8” 3200 10” 4200 12” 5100 PermaPost® 5”Colonial 1300 6”Colonial 5000 5”Square 5000 6”Chamfered 5000 Wood Porch Posts 4” 1000 5” 3000 6” 5800 Round Fluted Aluminum Columns 6” 20000 8” 20000 10” 26000 12” 26000 Square Fluted Aluminum Columns 6” 11000 8” 12000 10” 9000 12” 17000 Heritage Square Recessed Panel Aluminum Columns 6” 24000 8” 23000
Legend/Elite Square Aluminum Columns 6” 17000 8” 14000 *Concentric loading Conforms with 2018 IBC/IRC
HB&G recommends following the installation instructions included with the product purchased. HB&G structural products conform to 2018 IBC/IRC.
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