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Technical Guide

Fire Resistance

  Equivalent Thickness

Loose Fill Material

Blended Aggregates

Sound Reduction

Control Joints

Compressive Strength

Weight Classifications

Colored Masonry Units

Masonry Calculator
    Estimating Guide

Equivalent Thickness
The equivalent thickness of a unit is the solid thickness that would be obtained if the same amount of masonry contained in a hollow unit were recast without core holes. The equivalent thickness of a hollow unit is equal to the percentage solid times the actual thickness of the unit. The equivalent thickness of a 100% solid unit or a solid grouted unit is equal to the actual thickness.
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