Any change in elevation in walking surfaces greater than 95 inches should be serviced by stairway. OSHA has received a number of inquiries about these two OSHA standards since publishing the final Walking-Working Surfaces rule on November 18 2016.
Required on stairs with four or more risers.
Osha standard stair railing height. WIDTH 22 between railings. A stair railing shall be of construction similar to a standard railing but the vertical height shall be not more than 34 inches nor less than 30 inches from upper surface of top rail to surface of tread in line with face of riser at forward edge of tread. However provisions relating to handrail clearance that are different from other codes and standards have been incorporated into NFPA 101.
191023 e 2 A stair railing shall be of construction similar to a standard railing but the vertical height shall be not more than 34 inches nor less than 30 inches from an upper surface of top rail to the surface of tread in line with the face of the riser at the forward edge of the tread. In accordance with 191029 f 1 ii B the height of stair rail systems installed on or after January 17 2017 must not be less than 42 inches 107 cm. Barriers used to separate stairways into channels should be at least 1 m 394 in high.
191024 h 191023 e 2 NOTICE. 19261052c3i Stairrails installed after March 15 1991 shall be not less than 36 inches 915 cm from the upper surface of the stairrail system to the surface of the tread in line with the face of the riser at the forward edge of the tread. In addition to paragraph b of this section the employer must ensure standard stairs.
OSHA Railing requirements for Stair Railing. The proposed rule 29 CFR Part 1910 28 proposed April 1990 removes any discrepancy between the two standards. 191029 b 1 The top edge height of top rails or equivalent guardrail system members are 42 inches 107 cm plus or minus.
191025 c 3 Have a minimum tread depth of 95 inches 24 cm. Rise height and tread width must be uniform. The height of the stair rail system is not less than 36 inches 91 cm and not more than 38 inches 97 cm as measured at the leading edge of the stair tread to the top surface of the top rail see Figure D-13 of this section.
Handrails must be provided on at least one side of. 191025 c 1 Are installed at angles between 30 to 50 degrees from the horizontal. OSHA stairs are required to be a minimum of 22 inches wide.
The top-edge height of a guardrail may exceed 45 inches if it meets the other safety requirements for guardrails. Open-sided stairs 44 require 1 stair rail and 1 separate handrailside. If the railing dips below 39 inches due to.
2 x 4 stock not more than 6 feet apart. HEIGHT CLEARANCE minimum 66 clearance from nose of tread to overhead obstruction. Not less than 30 inches above the nosing.
Paragraph 19261052 c 7 indicates that the top member of a stair rail used as a handrail must be between 36 to 37 inches. This is an OSHA Archive Document and may no longer represent OSHA Policy. In Canada it would be based on the National Building Code NBC.
RAILINGS open-sided stairs 44 require 1 stair railside. OSHA Standard. The first drawing would not be compliant with the height requirements in 191023 e because the height of the standard railing on the stair landing is less than 42 inches nominal.
Length measured in the direction of travel. If installed before March 15 1991 not less than 30 inches 76 cm. It is presented here as historical content for research and review purposes only.
In the US handrail height is based on either the Americans With Disabilities Act Standards for Accessible Design ADASAD the I-Codes International Building Code and International Residential Code or the Occupational Safety and Health Administration OSHA. Top rail may also serve as handrail if height of the system is between 36 and 38 inches. Guardrails with a top-edge height less than 39 inches are not permitted.
In General Industry OSHA standards say the guardrail height railing must be 42 high. However OSHA would consider the 36- to 37-inch height of the railing in the first drawing as a de minimis violation of the standard. Intermediate rail at about halfway up What to use for Railings.
30 to 34 inches in height. 191025 c 2 Have a maximum riser height of 95 inches 24 cm. The height of stairrails shall be as follows.
Oregon OSHA requires that employees at general industry workplaces be protected from falls to a lower level of four feet or more and from any height. NFPA 5000 was published in 2000 as an alternate to the I Codes. If landingsplatforms exist in the structure of the stairway 29 CFR 191024 g requires that stairway platforms shall be no less than the width of a stairway and a minimum of 30 inches in length measured in the direction of travel.
For the most part it has not been adopted. OSHA states that guardrail must reach a height of 42 inches plus or minus 3 inches above the walking-working surface and withstand a force of 200 pounds at any point in a downward or outward direction. Before January 17 2017.
191023e2 speaks specifically to stair railings. Immediately behind a row of seats should be a minimum height of 11 m 433 in. Stair rail height must be between 30-34 inches.
Building Construction and Safety Code and NFPA 101. Railings and Handrails Standard railings must be provided on the open sides of all exposed stairways and stair platforms. Top edges of stair rail systems used as handrails must not be more than 37 inches 94 cm high nor less than 36 inches 915 cm from the upper surface of the stair rail system to the surface of the tread.