This document discusses OSHA regulations for fixed industrial stairs from 1910.25. It provides information on types of industrial stairs, applicable codes, load requirements, dimensions for treads, rises, and handrails. Stairs must be designed to carry five times the normal live load or a minimum of 1,000 pounds. Treads must be a minimum of 22 inches wide, slip-resistant, and have nosings. The angle of stairs must be between 30 and 50 degrees with uniform rise heights and tread widths. Handrails and guardrails are required on open and closed stairs. Platforms must be a minimum of 30 inches long and there must be 6 feet 8 inches of vertical clearance above stair treads.

1. INDUSTRIAL STAIRS OSHA 1910.25 2017
PL Series Industrial Stairs 2017

2. HEALTH, SAFETY, WELFARE
The human side of the numbers – protecting the climber
One injury or fatality–many lives are changed

3. FIXED INDUSTRIAL STAIRWAY
 Interior and exterior stairs
around machinery, tanks, and
other equipment
 Stairs leading to and from
floors, platforms or pits
 Provided to access levels and
equipment used regularly

4. FIXED INDUSTRIAL STAIRWAY
TYPES
“Crossover” or Bridge Stairs Stairway to a Hatch Stairway with Mezzanine

5. APPLICABLE CODE FOR
FIXED INDUSTRIAL STAIRWAYS
 OSHA-Occupational Safety & Health
Administration
 OSHA 1910.25
www.OSHA.gov

6. FIXED INDUSTRIAL STAIRWAY
CARRY LOAD STRENGTH
 Constructed to carry a
load five time the
normal live load
 Never less strength than
to carry 1,000 pound
load 1,000
pounds

7. FIXED INDUSTRIAL STAIRWAY
TREAD
 Minimum Width 22
Inches
22” min

8.  Reasonably Slip-Resistant
 Nosing of Nonslip Finish
FIXED INDUSTRIAL STAIRWAYS
TREAD
Anti-Slip Plate Bar Grating

9. FIXED INDUSTRIAL STAIRWAY
AREA OF ANGLE
 Angles of
between 30° and
50°
30-50 degrees

10. FIXED INDUSTRIAL STAIRWAYS
CLIMB
 Rise height and
tread width
uniform
throughout

11. FIXED INDUSTRIAL STAIRWAYS
CLIMB
Angle of horizontal | Rise (inches)| Tread run
(inches)
30 deg. 35’ | 6 ½ | 11
35 deg. 16’ | 7 ¼ | 10 ¼
38 deg. 29’ | 7 ¾ | 9 ¾
40 deg. 08’ | 8 | 9 ½
45 deg. 00’ | 8 ¾ | 8 ¾
48 deg. 16’ | 9 ¼ | 8 ¼
(From Table D-1 on OSHA.gov)

12. FIXED INDUSTRIAL STAIRWAYS
HANDRAILS
 Standard railings
provided on open
sides of all exposed
stairways
 Handrails provided
on at least one side
of closed stairways

13. FIXED INDUSTRIAL STAIRWAYS
HANDRAILS
Handrail
/
Guardrail
Standard
Handrail

14. FIXED INDUSTRIAL STAIRWAYS
PLATFORMS
 Minimum 30
inches in
length
measured in
the direction
of travel
30” min 30” min

15. FIXED INDUSTRIAL STAIRWAYS
VERTICAL CLEARANCE
 Clearance above any
stair tread to an
overhead obstruction
minimum 6’ 8”

16. INDUSTRIAL STAIRS OSHA 1910.25 2017
PL Series Industrial Stairs 2017