3 X 5 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.
- AVOID USING CONCRETE 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.