This is secured to a guardrail’s vertical posts and must be installed when walls aren’t at least 21 inches high and withstand at least 150 lbs. of force.

If the walls are not at least 21 inches above, a mid-rail should be established, and it should confront at least 150 lbs of force. Mid-rail is a rail almost midway within the guardrail and platform, utilized when needed, and adjusted to the uprights built along the unfolded sides and edges of platforms.

tifanihayyu tifanihayyu · Answer 2 · 2019-08-15T16:33:32+02:00

Mid Rail is secured to a guardrail’s vertical posts and must be installed when walls aren’t at least 21 inches high and withstand at least 150 lbs. of force.

Further explanation

One of the more popular fall protection questions are receive relates to OSHA requirements for safety railing and guardrail systems. There is OSHA’s official stance on guardrail for general industry applications.

Mid-Rail as defined in Occupational Safety and Health Standards, Walking-Working Surfaces. U.S. Department of Labor. "Mid-rail." Mid-Rail is rail approximately midway between the guardrail and platform. It used when required and secured to the uprights erected along the exposed sides and ends of platforms.

In OSHA 1910.29(b) contained the system requirements that employers must follow to ensure guardrail systems protect workers from falling to lower levels. Some of them are related with mid-rail:

1910.29(b)(2) Midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent intermediate members are installed between the walking-working surface and the top edge of the guardrail system as follows when there is not a wall or parapet that is at least 21 inches (53 cm) high:

1910.29(b)(2)(i) Midrails are installed at a height midway between the top edge of the guardrail system and the walkingworking surface;

1910.29(b)(2)(iv) Other equivalent intermediate members (such as additional midrails and architectural panels) are installed so that the openings are not more than 19 inches (48 cm) wide.

1910.29(b)(5) Midrails, screens, mesh, intermediate vertical members, solid panels, and other equivalent intermediate members are capable of withstanding, without failure, a force of at least 150 pounds (667 N) applied in any downward or outward direction at any point along the intermediate member.

1910.29(b)(7) The ends of top rails and midrails do not overhang the terminal posts, except where the overhang does not pose a projection hazard for employees.

1910.29(b)(8) Steel banding and plastic banding are not used for top rails or midrails.

1910.29(b)(9) Top rails and midrails are at least 0.25-inches (0.6 cm) in diameter or in thickness.

1910.29(b)(10) When guardrail systems are used at hoist areas, a removable guardrail section, consisting of a top rail and midrail, are placed across the access opening between guardrail sections when employees are not performing hoisting operations. The employer may use chains or gates instead of a removable guardrail section at hoist areas if the employer demonstrates the chains or gates provide a level of safety equivalent to guardrails.

1910.29(b)(13)(i) Has a self-closing gate that slides or swings away from the hole, and is equipped with a top rail and midrail or equivalent intermediate member that meets the requirements in paragraph (b) of this section;

1910.29(b)(15) Manila or synthetic rope used for top rails or midrails are inspected as necessary to ensure that the rope continues to meet the strength requirements in paragraphs (b)(3) and (5) of this section.

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Answer details

Grade: 9

Subject: arts

Chapter: Mid Rail

Keywords: Mid Rail