Concrete Block Manufacturers (M 4.05.1)
| Manufacturer | Location |
|---|---|
| Chicopee Masonry | Chicopee, MA |
| Hi Way Concrete Product | Wareham, MA |
| Ideal Block | Westford, MA |
| John's Building Supply | Pittsfield, MA |
Clay Brick Manufacturers (M 4.05.2)
| Manufacturer | Location |
|---|---|
| Morin Brick | Auburn, ME |
| Stiles and Hart | Bridgewater, MA |
| Watson Red Brick | Watsontown, PA |
| Pine Hall Brick | Salem, NC |