Minnesota Administrative Rules

1311.0405 SECTION 405, FIRE ESCAPES.

Section 405.4 Dimensions. IEBC section 405.4 is amended to read as follows:

405.4 Dimensions. Existing and replacement fire escape stairs shall meet the minimum width, capacity, riser height, and tread depth as specified in Table 405.4.

TABLE 405.4 DIMENSIONS FOR EXISTING AND REPLACEMENT FIRE ESCAPE STAIRS
Feature	Serving More Than 10 Occupants	Serving 10 or Fewer Occupants
Minimum Width	22 inches	18 inches
Maximum Riser Height	9 inches	12 inches
Minimum Tread Depth	9 inches	6 inches

Statutory Authority:

MS s 16B.59; 16B.61; 16B.64; 326B.02; 326B.101; 326B.106; 326B.13

History:

27 SR 1479; L 2007 c 140 art 4 s 61; art 13 s 4; 39 SR 95

Published Electronically:

January 26, 2015