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Deflection of FTAO Walls

The procedure for calculating deflection of FTAO walls comes from APA T555, Design for Force Transfer Around Openings (FTAO). It is applied only to FTAO walls with openings; those without openings are treated as segmented walls.

FTAO walls are assumed to deflect as a unit, and this deflection is equalized with that of other elements on the shear line.

In This Section

Procedure for Deflection of Entire Wall

Hold-down Displacement Component

Equalization of Deflections

Gypsum Materials

See Also

Wall Types and Materials

Deflection of Two-Sided Shear Wall

Deflection of Perforated Shear Walls

Deflection of Non-wood/Proprietary Walls

Deflection of Unblocked Walls

Fiberboard Panels

Effect of Gypsum Underlay