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en.wikipedia.org/wiki/Concrete_masonry_unit

A concrete masonry unit (CMU) is a standard size rectangular block used in building construction. Those that use cinders are called cinder blocks in the United States, breeze blocks in the United Kingdom, and hollow blocks in the Philippines. In New Zealand and Canada they are known as concrete blocks or more ...

specblockusa.com/downloads/gray-block/size-shape-2013.pdf

Comment: ASTM C-90 is the standard of masonry production specifications in the United. States. With the approval of ACI 530.1-88 specifications and the issue of ASTM C-90-91, there is one major specification change to note. In the past, block compressive strength (psi) was based on gross area requiring an average.

www.archtoolbox.com/materials-systems/masonry/concblocksizes.html

Concrete masonry Unit (CMU) sizes for standard CMUs - includes both nominal and actual dimensions. Covers concrete block sizes from 4" CMU through 12" CMU.

ncma-br.org/pdfs/14/TEK%2002-01B.pdf

An information series from the national authority on concrete masonry technology . NCMA TEK 2-1B (replaces TEK 2-1A). 1. TYPICAL SIZES AND SHAPES OF. CONCRETE MASONRY UNITS. TEK 2-1B. Unit Properties (2017). INTRODUCTION. Concrete masonry is one of the most versatile building products available ...

www.engineeringtoolbox.com/concrete-masonry-blocks-d_1731.html

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your ...

www.angelusblock.com/products/cmu_size.cfm

Three terms are used in referring to the overall dimensions (width, height, and length) of concrete masonry units (cmu): specified, actual, and nominal. Specified dimensions are those ... the measured dimensions of the unit. ASTM Standards allow the actual dimensions a permissible variation from the specified dimension.

www.alliedconcrete.com/wp-content/uploads/2010/04/CMU-Catalog.pdf

size are manufactured to specified face dimensions within tolerances specified in applicable referenced ASTM specification. A. Manufacture concrete masonary units specified dimensions of 3/8 inch less than nominal widths by nominal heights by nominal lenghts. 2. Provide special shapes where indicated and as follows:.

ccmpa.ca/wp-content/uploads/2012/02/MetricTechnical-Section3-2012.pdf

Coursing Tables, Metric Shapes and Sizes. 3.1 The “Anatomy” of a Standard. Concrete Block Masonry Unit. A perspective view of a standard, hollow concrete block ma- sonry unit is shown in Figure 3.1, with associated section cuts provided in Figure 3.2. These figures illustrate key elements of a concrete block masonry unit ...

ajandris.com/products/standard-cmu

Nominal Dimensions, Actual Dimensions. 2″ x 8″ x 16″ Solid, 1 5/8″ x 7 5/8 ″ x 15 5/8″. 2 1/4″ x 8″ x 16″ Solid, 2 1/4″ x 7 5/8″ x 15 5/8″. 3″ x 8″ x 16″ Regular, 2 5/8″ x 7 5/8″ x 15 5/8″. 3″ x 8″ x 16″ Solid, 2 5/8″ x 7 5/8 ″ x 15 5/8″. 4″ x 8″ x 16″ Regular 3 Core, 3 5/8″ x 7 5/8″ x 15 5/8″.