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A PLANK ALLOWABLE SPAN TABLE

LIVE
LOAD
SECTION 1 1/2" X 9 1/4"
SINGLE SPAN

SECTION 1 1/2" X 9 1/4"
2 EQUAL SPANS

50 psf 10'-5" 11'-8"
75 psf 9'-1" 10'-2"
1 person 10'-5" 12'-4"
2 person 8'-2" 8'-8"
3 person 5'-11" 6'-8"


NOTES:
1. Spans are from center-to-center of scaffold supports.
2. The weight of the plank has been included in all calculations and is included as a "Deal Load".
3. Deflections are limited to L/60 per OSHA requirements.
4. Bending capacity determined per ANSI A10.8 Appendix C.The "Person" load is defined in
ANSI A10.8 as a person weighing 200 pounds, carrying 50 pounds of equipment.
• The "1-Person" load is applied at mid-span
• The "2-Person" load is applied with each "Person" load placed 18" to either side of mid-span.
• The "3-Person" load is applied with a "Person" load at mid-span, and a "Person" load at 18" to either side of mid-span.

BE SAFE - Always inspect your planks prior to each use. Any plank showing signs of misuse or damage must be immediately removed from service. Contact your plank supplier for a complete list of inspection and storage guidelines.

 

 

A Plank Scaffold Image