WEBMay 16, 2021 · The nominal dimension of a CMU is the actual dimension plus the width of the mortar joint. Typical CMU mortar joints are 3/8". The nominal dimension works within the 4" grid that other construction materials follow. The graphic below shows the difference between nominal and actual sizes. Concrete Block - Nominal vs Actual Dimensions.
WEBCinder blocks are a type of concrete masonry unit (CMU). Standard dimensions are set by the American Society for Testing and Materials (ASTM C90). The standard cinder block dimensions are 8 in. x 8 in. x 16 in. However, this dimension includes the length of the average mortar joint, which is 3/8 in. Standard cinder block dimensions that include ...
WEBStandard CMU Block Sizes. CMU blocks come in standard nominal dimensions based on their width, height, and length. However, the actual dimensions will be slightly smaller due to manufacturing tolerances and mortar joints. Here are some of the most common standard CMU sizes: 8 x 8 x 16 inches (nominal) 12 x 8 x 16 inches (nominal)
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Concrete Masonry Unit (CMU) Block Sizes - Architecture Dictionary
WEBFor example, a CMU block described as 8" x 8" x 16" (nominal dimension) will actually measure 7.625" x 7.625" x 15.625". Common CMU Block Sizes. There are several standard CMU block sizes, each suitable for specific uses: • 8" x 8" x 16" Block: This is the most commonly used block size for structural walls.
WEBExample: 8" cmu with a known 1100 psi gross area at 52% solids. Compressive Strength (Gross Area) x 100 = Compressive Strength (%) Percent Solids (Net Area) 1100 psi x 100 = 2115 psi 52% Example: 8" cmu (7.625 actual size) with a known 1100 psi gross area with an equivalent thickness of 4.0".
WEBCMU blocks come in a wide range of sizes, but the standard depth sizes are 4”, 6”, 8”, 10” and 12”. Each of these standard sizes come in full block and half-block sizes. Here’s a rundown of the nominal dimensions for each standard size (listed as D x H x L): 4” full block: 4” x 8” x 16”. 4” half-block: 4” x 8” x 8”.
WEBMay 17, 2023 · Regular CMU blocks come in a variety of sizes with nominal depths of 4”, 6”, 8”, 10”, 12”, nominal height of 8”, and nominal width of 16”. The actual dimensions of Regular CMU blocks include depths of 3.625”-11.625” (9.2-29.5 cm), height of 7.625” (19.4 cm), and width of 15.625” (39.7 cm).
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CMU Basics - Dimensions and Sizes - Angelus Block Co., Inc.
WEBCMU BASICS. Dimensions and Sizes. for CMU. Three terms are used in referring to dimensions: specified, actual, and nominal. Variations in dimensions are governed by ASTM C90 Standard Specification for Loadbearing Concrete Masonry Units. C90 includes exceptions for split and slump textures.
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Masonry Blocks - Dimensions - The Engineering ToolBox
