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Southern pine scaffold plank grading designations

Summary OSHA relayed the Southern Pine Inspection Bureau's description of Dense Industrial 72 and Dense Industrial 65 scaffold plank designations. The bureau said the designations referred to wood whose load carrying capability was 72% and 65%, respectively, of clear straight grained Southern Pine. OSHA now archives this memorandum as potentially outdated.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1990-10-23-0
Date issued
October 23, 1990
Status
Archived by the agency
OSHA archives this memorandum and says it may no longer represent OSHA policy.
Status last verified October 9, 2026
Topics
Workplace Safety OSHA 1926 Scaffolds
Source
View the official document

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The current status of this document is unclear
OSHA archives this memorandum and says it may no longer represent OSHA policy. It may no longer reflect the agency's current position. Treat this page as historical context, not current guidance, and verify current law before relying on anything here.
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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.

October 23, 1990

MEMORANDUM TO: Joseph McSorley, Region III

THROUGH: Linda Anku, Regional Administrator

FROM: Charles Culver, Director, Office of Construction and Engineering

SUBJECT: Grading Designations for Southern Pine Scaffold Planks.

  1. Jim Loy, Director, Lumber Division, Southern Pine Inspection Bureau provided the following information on the designation of scaffold plank under the SPIB rules: Dense Industrial 72 Scaffold Plank and Dense Industrial 65 Scaffold Plank refers to wood in which 72% and 65% respectively is equal in its load carrying capability to clear straight grained Southern Pine.

  2. If you have additional questions on southern pine lumber you may want to contact Mr. Loy directly. His phone number is (904) 434-2611 and he offered his help anytime we have questions.

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