Installation Instructions

FIGURE 1

The door manufacturer offers a universal mull strip

for both vertical and horizontal applications.

Measuring and Cutting Mull Strips

1. To determine the length of the mull strip,

measure the unit assembly width, jamb to jamb

(FIGURE 1) and then subtract 1/4". Cut the mull

strip to length with a hacksaw.

2. Using a utility knife or tin snips cut back the

snap-in-leg end on each mull strip by 1/2"

(FIGURE 2).

Mull Strip Installation

1. Apply a minimum 1/4" continuous bead of caulk

the full length of the mull strip before installing strip

(FIGURE 2).

2. Apply continuous bead of caulk along entire

length of accessory groove of both transom and

door (FIGURE 3).

MEASURE FROM

HERE TO HERE

FIGURE 2

APPLY CAULK THE FULL

LENGTH OF MULL STRIP

1/2"

FIGURE 3

Mull Strip Configuration & Installation – 2 Wide Only