- The tabulated allowable loads are based on a safety factor of 5.0 for installations under the IBC and IRC.
- Values for 8-inch wide, lightweight, medium-weight and normal-weight concrete masonry units.
- The minimum specified compressive strength of masonry, f'm, at 28 days is 1,500 psi.
- Embedment depth is measured from the outside face of the concrete masonry unit and is based on the anchor being embedded an additional 1/2" through 1 1/4" thick face shell.
- Allowable loads may not be increased for short-term loading due to wind or seismic forces. CMU wall design must satisfy applicable design standards and be capable of withstanding applied loads.
- Do not use impact wrenches to install in hollow CMU.
- Set drill to rotation-only mode when drilling into hollow CMU.
Figure 2
