Structural Masonry Systems
Single Wythe CMU System

1) General
2) Details
3) Guide Specifications Section 04220s

Details identified thus are recommended by The Masonry Institute of Washington to be used as standard tracing details by Northwest architects and designers.

Note: Due to the number of images, this page will take some time to load.

1. General

Good construction details are necessary to the satisfactory performance of any structure. Engineered design of loadbearing concrete masonry construction utilizes the diaphragm action of walls and floors to provide stability to the building. The result is taller buildings with thinner walls. For this reason it is very important that connections between intersecting walls and floor be of sufficient strength to safely transmit the loading expected on the structure. Importance of proper connection details has been demonstrated by the good performance of engineered masonry buildings, particularly in areas of high winds and seismic activity.

2. Details

While construction details should be designed for a particular combination of materials and conditions, the following details are presented to provide a guide to the designer covering a few of the more vital connection details for reinforced and non-reinforced concrete masonry walls. Included are wall intersection details, connection of walls to several commonly used types of floor and roof systems, and details for shear transfer through floor slabs.

Next page

The NW Masonry Guide Table of Contents

Masonry Institute of Washington
Washington State Conference of Mason Contractors