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// CODE SNIPPET

3308.7.3 Dimensions and Materials

NYC Building Code 2014 > 33 Safeguards During Construction or Demolition > 3308 Protection of Unenclosed Perimeters > 3308.7 Guardrail System > 3308.7.3 Dimensions and Materials
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Toprails, midrails, toeboards, and posts shall have the following dimensions and be constructed out of the following materials:
  1. Toprails shall, at a minimum, consist of:
    1. 2 inch by 4 inch (51 mm by 102 mm) 1500 foot pounds per square inch (1.05 kgf/mm2) fiber (stress grade) construction grade lumber;
    2. 11/2 inch (38 mm) nominal diameter (Schedule 40) pipe;
    3. 2 inch by 2 inch by 3/8 inch (51 x 51 x 10 mm) structural angle; or
    4. 1/4 inch (6 mm) diameter noncorrosive wire cable made of mild plow steel.
  2. Midrails shall, at a minimum, consist of:
    1. 1 inch by 6 inch (25 mm by 152 mm) 1500 lb-ft/in2 (1.05 kgf/mm2) fiber (stress grade) construction grade lumber;
    2. 11/2 inch (38 mm) nominal diameter (schedule 40) pipe;
    3. 2 inch by 2 inch by 3/8 inch (51 x 51 x 10 mm) structural angle; or
    4. 1/4 inch (6 mm) diameter noncorrosive wire cable made of mild plow steel.
  3. Toeboards shall, at a minimum, consist of:
    1. 1 inch by 6 inch (25 mm by 152 mm) lumber; or
    2. Metal plank at least 31/2 inches (89 mm) high.
  4. Toprails, midrails, and toeboards shall be securely fastened to upright posts spaced not more than 8 feet (2438 mm) apart. Such posts shall, at a minimum, consist of:
    1. 2 inch by 4 inch (51 mm by 102 mm) 1500 foot pounds per square inch (1.05 kgf/mm2) fiber (stress grade) construction grade lumber;
    2. 11/2 inch (38 mm) nominal diameter (schedule 40) pipe;
    3. 2 inch by 2 inch by 3/8 inch (51 x 51 x 10 mm) structural angle; or
    4. A building column.
Exceptions:
  1. Guardrail systems designed by a registered design professional capable of withstanding, without failure:
    1. A force of at least 200 pounds (890 n) applied within 2 inches (51 mm) of the top edge, in any outward or downward direction, at any point along the top edge. Where the force is applied in a downward direction, the top edge shall not deflect more than 6 inches (152 mm) and in no case to a height less than 39 inches (991 mm) above the floor; and
    2. A load of at least 50 pounds (222 n) applied in any downward or horizontal direction at any point along the toeboard.
  2. Posts supporting wire cable toprails and midrails, as well as the toeboards utilized in connection with such wire cable toprails and midrails, may be spaced more than 8 feet (2438 mm) apart provided that the posts are spaced such that where a force of 200 pounds (890 n) is applied in a downward direction along the top edge, the top edge shall not deflect more than 6 inches (152 mm) and in no case to a height less than 39 inches (991 mm) above the floor.

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