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Regular Concrete Masonry Units
    Page Three
Block Graphic

Configuration
 in Cube

Nominal Size**

Block per Cube 

Density Lbs. / Block 

Lbs. Per Block 

Fire Rating (hrs.)

All Double Ends 4x4x18 Half High 3 5/8" high 340 105 10  
All Double Ends 4x5x18 Starter Course 4 5/8" high 306 105 13  
All Double Ends 6x4x18
Half High 3 5/8" high
240 105 15  
All Double Ends 6x5x18
Starter Course 
4 7/8" high
216 105 16  
2x Double Stretcher 8x4x18
Half High 3 5/8" high
170 105 21  
1x Double Stretcher
1x Double Corner 8x5x18
Starter Course 
4 7/8" high
153 105 28  
2x Double Stretcher
                   6x8x18
Bond Beam/ Lintel
144 105 28  
135 36
                   8x8x16 & 18 Bond Beam/ Lintel 16" 108 105 32  
135 41
18" 102 105 36  
135 46
                   8x8x16 & 18 Open Bottom Bond Beam 16" 108 105 27  
135 35
18" 102 105 30  
135 40
                   10x8x18
Bond Beam/ Lintel
78 105 49  
135 63
** The actual size is 3/8" less in each direction to accommodate the mortar thickness
Middle Country Road and Arthur Drive, Smithtown, NY 11787
Phone: (631) 265-1815 Fax: (631) 265- 1977

info@smithtownconcrete.com