Typical left hand
bottom corner bracket
Bottom section
Short stem track roller
Roller
spacer
1/4” - 20
Flange hex nuts
Bottom
weather
seal
Counterbalance
lift cable
Carriage bolts
Cable
loop
Bottom corner
bracket
Milford
pin
(1) 1/4” - 10 x 1” Tamper
resistant lag screw
Left hand bottom
corner bracket
Bottom section
Short stem
Roller spacer
1/4” - 20 x 1-7/8”
Carriage bolts
Bottom
weather seal
Counterbalance
lift cable
1/4” - 20
Flange hex nuts
Cable
loop
Bottom corner
bracket
Milford
pin
(1) 1/4” - 10 x 1” Tamper
resistant lag screw
Left hand bottom
corner bracket
Bottom section
Bottom
weather seal
Short stem
track roller
Spacer
(4) 1/4” - 20 x 1-7/8”
Carriage bolts
1/4” - 20
Flange hex nuts
(1) 1/4” - 10 x 1” T
resistant lag screw
Left hand bottom
corner bracket
Bottom
section
1/4” - 20 x 1-7/8”
Carriage bolts
1/4” - 20 Flange
hex nuts
Bottom
weather seal
(1) 1/4” - 10 x 1” Tamper
resistant lag screw
Attaching Track Roller Carrier’s
4
NOTE: If you don’t have track roller carriers, then skip this step. Refer to Package Contents /
Breakdown of Parts, to determine if a track roller carrier was supplied with your door.
Starting on left hand side of the bottom section, position the track roller carrier with the
stamp “STD” facing UP to the bottom corner bracket and aligning the four holes of the track
roller carrier with the four holes in the bottom corner bracket. Secure the track roller carrier
to the bottom corner bracket with (4) 1/4” - 14 x 1” lag screws.
NOTE: Prior to fastening the track roller carrier to the bottom section, pilot drill using a 1/8”
drill bit.
IMPORTANT: BE EXTREMELY CAREFUL NOT TO DRILL THRU THE SECTION. ONLY DRILL 1”
DEEP.
Repeat the same process for other track roller carrier. Insert a short stem track roller and
spacer into the inner holes of the track roller carriers.
NOTE: The track roller carrier’s inner holes are used on doors with 2” track applications; the
outer holes are used on doors with 3” track applications.
Short stem
track roller
Spacer
(4) 1/4”-14 x 1”
Lag screws
Track roller
carrier
Typical bottom
corner bracket
“STD”
facing UP
Side view of track roller
carrier(s)
Inner holes
(2” Track)
Outer holes
(3” Track)
Attaching Hinges and Strut To Bottom Section
5
NOTE: Refer to the Bottom Section Short Strut Strutting Schedule below, to determine the
appropriate strutting for your Bottom section.
Bottom Section Short Strut Strutting Schedule For Door Heights Less Than Or Equal to 8’0”
Door Models Door Width Location On
Bottom Section
Up To and In-
cluding 12’2”
From 12’3” To
16’0”
From 16’1” To
18’0”
105 / 106 N/A (1) Short N/A Bottom Of
Section
110 / 116 (1) Short
310 / 311 / 314
/ 316
(1) Short
Bottom Section Short Strut Strutting Schedule For Door Heights Greater Than Or Equal to
8’1”
Door Models Door Width Location On
Bottom Section
Up To and In-
cluding 12’2”
From 12’3” To
16’0”
From 16’1” To
18’0”
105 / 106 (1) Short N/A Bottom Of
Section
110 / 116 (1) Short
310 / 311 / 314
/ 316
(1) Short
Lay a SHORT STRUT onto the bottom rail of the bottom section. Position the bottom of the
strut 3/4” up from the bottom edge of the bottom section. Center the short strut from side
to side on the section surface. Drill pilot holes, 1” deep into the bottom section using a 1/8”
drill bit.
IMPORTANT: BE EXTREMELY CAREFUL NOT TO DRILL THRU THE SECTION. ONLY DRILL 1”
DEEP.
Attach the strut using (1) 1/4” - 14 x 1” lag screw at each pre-drilled hole.
1/4” - 14 x 1”
Lag screws
SHORT
STRUT
3/4”
Bottom corner
bracket
Bottom
section
NOTE: Refer to the Bottom Section Graduated End Hinge Schedule below, to determine the
appropriate hinges for your bottom section.
Bottom Section Graduated End Hinge Schedule
Door Height Section Type Track Graduated End
Hinge Number
3 Through 7 Section
High Doors
Bottom 2” #1
3” #3
NOTE: Refer to the Bottom Section Long Strut Strutting Schedule below, to determine the
appropriate strutting for your Bottom section.
Bottom Section Long Strut Strutting Schedule
Door Models Door Width Location On
Bottom Section
Up To and In-
cluding 12’2”
From 12’3” To
16’0”
From 16’1” To
18’0”
105 / 106 N/A (1) Long N/A Top Of Section
110 / 116 (1) Long (1) Long
310 / 311 / 314
/ 316
(1) Long (1) Long
7