Manufacturers have slight differences in the depth of the closet horn and flange thickness of their closets. Usually the fixture support closet connection should extend 5/16” beyond face of finished wall (Dimension “R”) and the fixture studs 2 1/4” (dimension “X”). For exact dimensions, please use the formulas below:

DETAIL A     S + 1/16” - D = R

R = Distance coupling should extend beyond finished wall.

S = Depth closet horn

1/16” = Distance closet is to set away from finished wall.

*D = 1/2” for felt gasket and 3/8” for neoprene gasket.

NOTE:

When the fixture is installed, closet gasket must be compressed sufficiently to assure a gas and water tight seal.

DETAIL B   Y + 1/16” + 9/16” = X

X = Distance supporting stud should extend beyond finished wall.

Y = Thickness of closet wall flange.

1/16” = Distance closet is to set away from finished wall.

NOTE:

Bearing nuts and washers must be set to take full loading from the fixture.