Duke Concrete Products, Inc. has been the market leader in the manufacture of high- quality concrete masonry units since 1982.

• See also:
• Masterformat 2004
• 04 20 00 - UNIT MASONRY
• 04 21 00 - Clay Unit Masonry
• 04 21 13 - Brick Masonry
• 04 21 16 - Ceramic Glazed Clay Masonry
• 04 21 19 - Clay Tile Masonry
• 04 21 23 - Structural Clay Tile Masonry
• 04 21 26 - Glazed Structural Clay Tile Masonry
• 04 21 29 - Terra Cotta Masonry
• 04 22 00 - Concrete Unit Masonry
• 04 22 19 - Insulated Concrete Unit Masonry
• 04 22 23 - Architectural Concrete Unit Masonry
• 04 22 33 - Interlocking Concrete Unit Masonry
• 04 73 00 - Manufactured Stone Masonry
• 32 14 00 - Unit Paving
• 32 14 13 - Precast Concrete Unit Paving
• 32 14 16 - Brick Unit Paving
• 32 14 23 - Asphalt Unit Paving
• 32 14 40 - Stone Paving
• 32 32 00 - Retaining Walls
• 32 32 13 - Cast-in-Place Concrete Retaining Walls
• 32 32 16 - Precast Concrete Retaining Walls
• 32 32 19 - Unit Masonry Retaining Walls
• 32 32 23 - Segmental Retaining Walls
• 32 32 29 - Timber Retaining Walls
• Masterformat 1995
• 02780 - Unit Pavers
• 02830 - Retaining Walls
• 04200 - Masonry Units
• 04210 - Clay Masonry Units
• 04220 - Concrete Masonry Units
• 04730 - Simulated Stone