Essentials of
Masonry

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Part 3--Construct a Brick Wall

LINTELS

Lintels are placed above the windows and doors to carry the weight of the wall above them. Lintels can be made of steel, precast reinforced concrete beams, or wood. Lintels rest on top of the last brick course that is level or approximately level with the top of the window or door frame (Figure 3-31). The bricks above the wall opening on which the lintels rest can be strengthened by the installation of steel reinforcing bars. The placement of the reinforcing bars is determined by the wall thickness and the type of window or door that is used (Figure 3-31).

 Figure 3-31.  Lintels for a 12-inch wall
Figure 3-31. Lintels for a 12-inch wall

3-27. Lintel Sizes. Table 3-4 provides information about lintel sizes for various opening widths in 8- and 12-inch walls.

 Table 3-4.  Lintel sizes for 8- and 12-inch walls
Table 3-4. Lintel sizes for 8- and 12-inch walls

3-28. Double-Angle Steel. If you are using a double-angle steel lintel, it should be 1/4 in thick. This makes it possible for the two-angle legs to project up into the brick to fit exactly into the 1/2-inch joint between the face and backing-up ties (Figure 3-32).

Figure 3-32.  Double-angle steel lintels
Figure 3-32. Double-angle steel lintels

David L. Heiserman, Editor

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Revised: June 06, 2015