AVERAGE WEIGHT(*) OF CONCRETE MASONRY UNITS, POUNDS PER UNIT

(*) ASTM C90 classified masonry units as follows: Lightweight: Less than 105 pcf. Medium weight 105 pcf to less than 125 pcf.
Normal weight: 125 pcf. or more.

AVERAGE WEIGHT OF COMPLETED WALL(1), POUNDS PER SQUARE FOOT
AND EQUIVALENT SOLID THICKNESS, INCHES, Weight of grout 140 pcf

1. The above table gives the average weights of completed walls of various thickness in pounds per square foot of wall face area.
An average amount has been added into these values to include the weight of bond beams and reinforcing steel.

2. Equvalent solid thickness means the calculated thickness of the wall if there were not hollow cores, and is obtained by dividing the volume of solid material in the wall by the facearea of the wall.

This Equivalent Solid Thickness (EST) is for the determination of area for structural design only, e.g. fa =P/(EST)b. It is NOT to use to obtain fire ratings. Fire rating thickness is based either on equivalent solid thickness of ungrouted units only or solid grouted walls.