Since our beginning in 1947, Claridge Products and Equipment, Inc., Harrison, Arkansas, has grown to be the national leader of chalkboards, markerboards, tackboards and related products manufactured and sold in the United States.

• See also:
• Masterformat 2004
• 10 11 00 - Visual Display Surfaces
• 10 11 13 - Chalkboards
• 10 11 16 - Markerboards
• 10 11 23 - Tackboards
• 10 11 33 - Sliding Visual Display Units
• 10 11 36 - Visual Display Conference Units
• 10 12 00 - Display Cases
• 10 13 00 - Directories
• 10 13 13 - Electronic Directories
• 10 14 00 - Signage
• 10 22 23 - Portable Partitions, Screens, and Panels
• 10 57 00 - Wardrobe and Closet Specialties
• 10 57 13 - Hat and Coat Racks
• 11 21 00 - Mercantile and Service Equipment
• 11 21 13 - Cash Registers and Checking Equipment
• 11 21 43 - Weighing and Wrapping Equipment
• 11 21 53 - Barber and Beauty Shop Equipment
• 11 28 00 - Office Equipment
• 11 52 00 - Audio-Visual Equipment
• 11 52 13 - Projection Screens
• 11 52 16 - Projectors
• 12 35 00 - Specialty Casework
• 12 35 17 - Bank Casework
• 12 35 25 - Hospitality Casework
• 12 35 30 - Residential Casework
• 12 35 50 - Educational/Library Casework
• 12 35 53 - Laboratory Casework
• 12 35 59 - Display Casework
• 12 35 70 - Healthcare Casework
• 12 35 91 - Religious Casework
• Masterformat 1995
• 10100 - Visual Display Boards
• 10110 - Chalkboards
• 10115 - Markerboards
• 10120 - Tackboard and Visual Aid Boards
• 10145 - Visual Aid Board Units
• 10400 - Identification Devices
• 10410 - Directories
• 10630 - Portable Partitions, Screens, and Panels
• 10900 - Wardrobe and Closet Specialties
• 11100 - Mercantile Equipment
• 11130 - Audio-Visual Equipment
• 11136 - Projection Screens
• 11680 - Office Equipment
• 12350 - Specialty Casework