3x5 Rule

ASME A17.1 Rule 5.3.1.4.2 states: The clearance between the hoistway doors or gates and the hoistway edge of the landing sill shall not exceed 3 inches (76mm). The distance between the hoistway face of the landing door or gate and the car door or gate shall not exceed 5 inches.

3x5 Rule

  • AVOID USING CONCREET BLOCK AND 2X6 FRAMING FOR HOISTWAY DOOR WALLS. THIS WILL REQUIRE DOORS TO BE RECESSED TO MEET 3 x 5” RULE.
  • AVOID METAL DOOR CASINGS AS THEY MAY CAUSE 3 x 5” RULE VIOLATIONS.
  • AN OUT OF PLUMB SHAFTWAY WILL GREATLY AFFECT RUNNING CLEARANCES AND MAY CREATE 3 x 5” CODE VIOLATIONS.
  • 3X5” RULE AND OTHER CODE VIOLATIONS CAN BE EASILY AVOIDED BY ENGAGING YOUR LOCAL ELEVATOR INSTALLATION PROFESSIONAL EARLY IN THE DESIGN STAGE OF YOUR PROJECT.
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