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Shall comply with the following and Figure 12a.
12.2.1
General: All public areas of a library, including but not limited to, reading and study areas, stacks, reference rooms, reserve areas, and special facilities or collections, shall comply with 521 CMR 12.00.
12.2.2
Reading Areas, Study Areas and Computer Workstations: Where tables, study carrels, computer workstations, or fixed seating are provided, at least 5% with a minimumof one of each element shall be accessible, be on an accessible route, and comply with the following:
  1. Access aisles: A 36 inch (36" = 914 mm) access aisle shall be provided between tables and between study carrels. No seating shall overlap the access aisle. See Fig. 12a.
  2. Clear floor space as defined in 521 CMR 5.00: DEFINITIONS shall be provided at each seating space. Such clear floor space shall not overlap knee space by more than 19 inches (19" = 483  mm). See Fig. 12a.
  3. Knee Clearances: If seating for disabled persons is provided at tables or counters, kneespaces at least 27 inches (27" = 686 mm) high, 30 inches (30" = 762 mm) wide, and 19 inches (19" = 483 mm) deep shall be provided. See Fig. 12a.
  4. Height of Tables or Counters: The tops of accessible tables and counters shall be from 28 inches to 34 inches (28" to 34" = 711 mm to 864 mm) above the finished floor or ground.
Seating in Libraries
Figure 12a
12.2.3
Check-Out Areas: At least one lane at each check-out area shall have a counter a minimum of 36 inches (36" = 914 mm) in length and a maximum of 36 inches (36" = 914 mm) in height. See Fig. 7a.
12.2.4
Security Devices: Any traffic control or book security gates or turnstiles shall not prevent access or egress to people in wheelchairs. Security gates shall have a 32 inch (32" = 812 mm) clear opening. If turnstiles are used, an adjacent accessible, unlocked door or gate shall be provided. Any level changes created by such devices shall comply with 521 CMR 20.00: ACCESSIBLE ROUTE and 521 CMR 29.00: FLOOR SURFACES.
12.2.5
Card Catalogs: Clear aisle space at card catalogs shall be a minimum of 36 inches (36" = 914 mm) and comply with Fig. 12b. Maximum reach height shall be between 18 inches (18" = 457 mm) and 54 inches (54" = 1372 mm), with a height of 48 inches (48" = 1219 mm) preferred.
Catalogs (Card and Computer)
Figure 12b
12.2.6
Stacks: Aisles between stacks shall have a minimum clear width of 36 inches (36" = 914 mm) and preferably 42 inches (42" = 1067 mm), where possible, as shown in Fig. 12c. Shelf height in stack areas is unrestricted.
Stacks
Figure 12c

Related Code Sections

12.2 Educational Facilities, Libraries
General: All public areas of a library, including but not limited to, reading and study areas, stacks, reference rooms, reserve areas, and special ...
12.2.6 Educational Facilities,
Stacks: Aisles between stacks shall have a minimum clear width of 36 inches (36" = 914 mm) and preferably 42 inches (42" = 1067 mm), where possible ...