Superior Block Corporation
761 East 42nd Street • Brooklyn, New York 11210 • Tel 718.859.8734

Concrete Masonry Units

Concrete block, commonly referred to as cinder block or grey block, is an integral component in most types of construction. Concrete block can in point of fact incorporate a variety of different materials in order to achieve various strengths, fire ratings, environmental properties or aesthetics. We produce all Concrete Masonry Units (CMU) to Industry Standards – ASTM C90 and ASTM C140. We offer a range of different strengths from standard 1900 P.S.I. to high strength 5000 P.S.I. We meet density requirements for Normal Weight 125 P.C.F., Medium Weight 105 P.C.F. and Light Weight 90 P.C.F. All lightweight aggregates conform to ASTM C331. Our concrete brick are suitable for use as back up, and are preferable to traditional clay brick for this purpose. Our concrete brick meet ASTM C55.

Please see the chart below for dimensions, fire ratings, packaging etc.

Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
4"x8"x16" Hollow 3 5/8 x 7 5/8 x 15 5/8 125 23.64 lb 144 1 hr
105 18.17 lb 144 1 hr
90 16.41 lb 144 1 hr
6"x8"x16" Hollow 5 5/8 x 7 5/8 x 15 5/8 125 30.57 lb 96 1 hr
105 23.49 lb 96 1 hr
90 21.22 lb 96 1 hr
8"x8"x16" Hollow 7 5/8 x 7 5/8 x 15 5/8 125 41.45 lb 72 2 hrs
105 31.85 lb 72 2 hr
90 28.77 lb 72 2 hrs 30 mins
10"x8"x16" Hollow 9 5/8 x 7 5/8 x 15 5/8 125 52.32 lb 60 2 hrs 30 mins
105 40.2 lb 60 3 hrs
90 36.31 lb 60 3 hrs
12"x8"x16" Hollow 11 5/8 x 7 5/8 x 15 5/8 125 63.19 lb 42 3 hrs
105 48.55 lb 42 3 hrs 30 mins
90 43.86 lb 42 4 hrs
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
4"x8"x16" Hollow 3 5/8 x 7 5/8 x 15 5/8 125 25.61 lb 144 1 hr
105 19.68 lb 144 1 hr
90 17.78 lb 144 1 hr
6"x8"x16" Hollow 5 5/8 x 7 5/8 x 15 5/8 125 38.22 lb 96 2 hrs
105 29.37 lb 96 2 hrs 30 mins
90 26.53 lb 96 3 hrs
8"x8"x16" Hollow 7 5/8 x 7 5/8 x 15 5/8 125 51.81 lb 72 4 hrs
105 39.81 lb 72 4 hrs
90 35.96 lb 72 4 hrs
10"x8"x16" Hollow 9 5/8 x 7 5/8 x 15 5/8 125 65.39 lb 60 4 hrs
105 50.25 lb 60 4 hrs
90 45.39 lb 60 4 hrs
12"x8"x16" Hollow 11 5/8 x 7 5/8 x 15 5/8 125 78.98 lb 42 4 hrs
105 60.69 lb 42 4 hrs
90 54.82 lb 42 4 hrs
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
2"x8"x16" 100% 1 5/8 x 7 5/8 x 15 5/8 125 14.72 lb 180 30 mins
105 11.31 lb 180 30 mins
90 10.22 lb 180 30 mins
4"x8"x16" 100% 3 5/8 x 7 5/8 x 15 5/8 125 32.84 lb 144 1 hour 30 mins
105 25.23 lb 144 2 hrs
90 22.79 lb 144 2 hrs
4"x8"x18" Hollow 7 5/8 x 7 5/8 x 17 5/8 125 26.67 lb 144 1 hr
105 20.49 lb 144 1 hr
90 18.51 lb 144 1 hr
6"x8"x18" Hollow 5 5/8 x 7 5/8 x 17 5/8 125 34.49 lb 96 1 hr
105 26.5 lb 96 1 hr
90 23.94 lb 96 1 hr
8"x8"x18" Hollow 7 5/8 x 7 5/8 x 17 5/8 125 46.75 lb 72 2 hrs
105 35.92 lb 72 2 hrs
90 32.45 lb 72 2 hrs 30 mins
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
10"x8"x18" Hollow 9 5/8 x 7 5/8 x 17 5/8 125 59.01 lb 60 2 hrs 30 mins
105 45.35 lb 60 3 hrs
90 40.96 lb 60 3 hrs
12"x8"x18" Hollow 11 5/8 x 7 5/8 x 17 5/8 125 71.28 lb 42 3 hrs
105 54.77 lb 42 4 hrs
90 49.47 lb 42 4 hrs
4"x8"x18" Hollow 3 5/8 x 7 5/8 x 17 5/8 125 28.89 lb 144 1 hr
105 22.2 lb 144 1 hr
90 20.05 lb 144 1 hr
6"x8"x18" 75% 5 5/8 x 7 5/8 x 17 5/8 125 43.11 lb 96 2 hrs
105 33.13 lb 96 2 hrs 30 mins
90 29.92 lb 96 3 hrs
8"x8"x18" 75% 7 5/8 x 7 5/8 x 17 5/8 125 58.44 lb 72 4 hrs
105 44.9 lb 72 4 hrs
90 40.56 lb 72 4 hrs
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
10"x8"x18" 75% 9 5/8 x 7 5/8 x 17 5/8 125 73.77 lb 60 4 hrs
105 56.68 lb 60 4 hrs
90 51.20 lb 60 4 hrs
12"x8"x18" 75% 11 5/8 x 7 5/8 x 17 5/8 125 89.09 lb 42 4 hrs
105 68.46 lb 42 4 hrs
90 61.84 lb 42 4 hrs
4"x8"x18" 100% 3 5/8 x 7 5/8 x 17 5/8 125 37.04 lb 144 1 hr 30 mins
105 28.46 lb 144 2 hrs
90 25.71 lb 144 2 hrs
6"x8"x16" Open Bond Beam 5 5/8 x 7 5/8 x 15 5/8 125 31.28 lb 96 1 hr
105 24.04 lb 96 1 hr
90 21.72 lb 96 1 hr
6"x8"x18" Open Bond Beam 5 5/8 x 7 5/8 x 17 5/8 125 35.29 lb 96 1 hr
105 27.12 lb 96 1 hr
90 24.50 lb 96 1 hr
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
12"x8"x16" Open Bond Beam 11 5/8 x 7 5/8 x 15 5/8 125 64.67 lb 42 3 hrs
105 49.69 lb 42 4 hrs
90 44.89 lb 42 4 hrs
12"x8"x18" Open Bond Beam 11 5/8 x 7 5/8 x 17 5/8 125 72.94 lb 42 3 hrs
105 56.05 lb 42 4 hrs
90 50.63 lb 42 4 hrs
6"x8"x16" Closed Bond Beam 5 5/8 x 7 5/8 x 15 5/8 125 31.74 lb 96 1 hr
105 24.39 lb 96 1 hr
90 22.03 lb 96 1 hr
6"x8"x18" Closed Bond Beam 5 5/8 x 7 5/8 x 17 5/8 125 35.81 lb 96 1 hr
105 27.51 lb 96 1 hr
90 24.85 lb 96 1 hr
8"x8"x16" Closed Bond Beam 7 5/8 x 7 5/8 x 15 5/8 125 49.24 lb 72 2 hrs
105 33.07 lb 72 2 hrs
90 29.87 lb 72 2 hrs 30 mins
Image Nominal Size
(Inches)
Actual Size
(Inches)
Density Weight
(lbs)
Block Per Cube Fire Rating (hrs)
8"x8"x18" Closed Bond Beam 7 5/8 x 7 5/8 x 17 5/8 125 47.87 lb 72 2 hrs
105 37.29 lb 72 2 hrs
90 33.69 lb 72 2 hrs 30 mins
10"x8"x16" Closed Bond Beam 9 5/8 x 7 5/8 x 15 5/8 125 54.32 lb 60 2 hrs 30 mins
105 10.59 lb 60 3 hrs
90 37.70 lb 60 3 hrs
10"x8"x18" Open Bond Beam 9 5/8 x 7 5/8 x 17 5/8 125 61.27 lb 60 2 hrs 30 mins
105 47.08 lb 60 3 hrs
90 42.52 lb 60 3 hrs
12"x8"x18" Open Bond Beam 11 5/8 x 7 5/8 x 15 5/8 125 65.60 lb 42 3 hrs
105 50.40 lb 42 3 hrs
90 45.54 lb 42 4 hrs
6"x8"x18" Open Bond Beam 11 5/8 x 7 5/8 x 17 5/8 125 74.00 lb 42 3 hrs
105 56.86 lb 42 4 hrs
90 51.36 lb 42 4 hrs