3. Doors, doorways, and gates not providing full user passage shall provide a clear width of 20 inches (510 mm) minimum. ITEM 11B.27 DIVISION 4: ACCESSIBLE ROUTES 11B-404 Doors, doorways, and gates 11B-404.2 Manual doors, doorways, and manual gates. … 11B-404.2.9 Door and gate opening force. The force for pushing or pulling open a door or gate other than fire doors shall be as follows: 1. Interior hinged doors and gates: 5 pounds (22.2 N) maximum. 2. Sliding or folding doors: 5 pounds (22.2 N) maximum. 3. Required fire doors: the minimum opening force allowable by the appropriate administrative authority, not to exceed 15 pounds (66.7 N). 4. Exterior hinged doors: 5 pounds (22.2 N) maximum. These forces do not apply to the force required to retract latch bolts or disengage other devices that hold the door or gate in a closed position. Exceptions: 1. … 2. … ITEM 11B.28 DIVISION 4: ACCESSIBLE ROUTES 11B-406 Curb ramps, blended transitions and islands 11B-406.5 Common requirements. … 11B-406.5.8 Counter slope. Counter slopes of adjoining gutters and road surfaces immediately adjacent to and within 24 inches (610 mm) of the curb ramp shall not be steeper than 1:20. The adjacent surfaces at transitions at curb ramps to walks, gutters, and streets shall be at the same level. Figure 11B-406.5.7 11B-406.5.8 Counter Slope of Surfaces Adjacent to Curb Ramps ITEM 11B.29 DIVISION 4: ACCESSIBLE ROUTES 11B-406 Curb ramps, blended transitions and islands 11B-406.5.11 Reserved. Grooved border. Curb ramps shall have a grooved border 12 inches (305 mm) wide along the top of the curb ramp at the level surface of the top landing and at the outside edges of the flared sides. The grooved border shall consist of a series of grooves ¼ inch (6.4 mm) wide by ¼ inch (6.4 mm) deep, at ¾ inch (19 mm) on center. Exceptions:
3. Doors, doorways, and gates not providing full user passage shall provide a clear width of 20 inches (510 mm) minimum. ITEM 11B.27 DIVISION 4: ACCESSIBLE ROUTES 11B-404 Doors, doorways, and gates 11B-404.2 Manual doors, doorways, and manual gates. … 11B-404.2.9 Door and gate opening force. The force for pushing or pulling open a door or gate other than fire doors shall be as follows: 1. Interior hinged doors and gates: 5 pounds (22.2 N) maximum. 2. Sliding or folding doors: 5 pounds (22.2 N) maximum. 3. Required fire doors: the minimum opening force allowable by the appropriate administrative authority, not to exceed 15 pounds (66.7 N). 4. Exterior hinged doors: 5 pounds (22.2 N) maximum. These forces do not apply to the force required to retract latch bolts or disengage other devices that hold the door or gate in a closed position. Exceptions: 1. … 2. … ITEM 11B.28 DIVISION 4: ACCESSIBLE ROUTES 11B-406 Curb ramps, blended transitions and islands 11B-406.5 Common requirements. … 11B-406.5.8 Counter slope. Counter slopes of adjoining gutters and road surfaces immediately adjacent to and within 24 inches (610 mm) of the curb ramp shall not be steeper than 1:20. The adjacent surfaces at transitions at curb ramps to walks, gutters, and streets shall be at the same level. Figure 11B-406.5.7 11B-406.5.8 Counter Slope of Surfaces Adjacent to Curb Ramps ITEM 11B.29 DIVISION 4: ACCESSIBLE ROUTES 11B-406 Curb ramps, blended transitions and islands 11B-406.5.11 Reserved. Grooved border. Curb ramps shall have a grooved border 12 inches (305 mm) wide along the top of the curb ramp at the level surface of the top landing and at the outside edges of the flared sides. The grooved border shall consist of a series of grooves ¼ inch (6.4 mm) wide by ¼ inch (6.4 mm) deep, at ¾ inch (19 mm) on center. Exceptions: