Extreme™ Series Sectional Door

High Performance Sectional

Model Number: EX904N, EX3100N, EX3200N & EX3700N Series

When your operation can't afford to wait, you need a door that can keep up. Our Extreme Series™ Sectional Door opens up to 3X faster than a standard sectional, keeping your workflow moving. Built to last, it features heavy-duty hardware and springs that deliver twice the lifespan of traditional doors, all powered by a LiftMaster^® operator. The result is a smooth, quiet system you can rely on for daily duty cycles at 600 cycles/day over a two-year warranty period.

Peace of mind is just as important as performance. That’s why every door comes standard with a light curtain for a three-foot protection zone, stopping the door the moment an obstruction is detected. You can tailor the door to your building’s needs, choosing full-view glass panels for maximum light or insulated sections for climate control. It’s the perfect fit for busy openings like fire stations, warehouses, and automotive service bays where reliability is non-negotiable.

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Sizes

Standard Specifications

Max Width	16'2"
Max Height	14'0"
Max Door Weight	1,000 lbs
Upward Travel	24" per second
Downward Travel	15" per second
Stiles	Double end stiles (standard)
Glazing Available	Tempered, insulated tempered, acrylic and polygal
Springs*	50,000 cycle standard (Max cycles available on a single shaft line)
Track Size	2" angle mount track standard 3" track where applicable
Track Type	Standard lift, high lift and full vertical
Warranty	Standard paint – 5 years Color Blast® finish – 5 years Material and workmanship – 1 year Hardware – 1 year
	*Cycles can vary depending on door configuration.

High Performance Door System Powered by LIFTMASTER

The CornellCookson Extreme Series High Performance Door System boasts an opening speed of 24" per second, allowing productivity to flourish while also delivering a flawless aesthetic thanks to optional full-view windows. Tandem nylon rollers improve roller life and reduce running noise for smooth, quiet operation while safety stays top of mind with enhanced features such as 3' of light curtain protection, a cable management system and standard cable tension monitor.

Operator Specifications

Motor Design	1.25 HP configuration serving single phase 115V/230V and 3-phase 230V configurations 3-phase 460/575V available with accessory transformer
Wall Controller	Separation of low and high voltage wiring - includes functionality of 3-button station, PLUS setting door profile, programming limits, diagnostics
Programming	Complete the following programming at floor level: set limits; choose door profiles for speed; set operating modes; select photo entrapment devices
Display	Provides textual status indications including - Absolute cycle count - Service cycle count - Diagnostics messages - Door/operator status
Cycle Counter	Re-settable cycle counter via the wall controller and/or through MyQ facility
Limit Settings	Simple electronic push-button setup via the wall controller

Models

ALUMINUM FULL-VIEW DOORS

Model	Thickness	Spacing	R-Value	Max Width✭	Max Height✭
EX904	2-1/8"	Equal width & spacing	N/A	16'2"	14'0"
EX904U	2-1/8"	Equal width & spacing	3.8*	16'2"	14'0"

✭Maximum Width and Height values listed are Standard sizing.
*With clear insulated glass

INSULATED STEEL FULL-VIEW DOORS

Model	Section Thickness	Emboss	Exterior Gauge	Section Design	Insulation	R-Value Solid*	R-Value w/Glass**	Thermal Break	Max Width✭	Max Height✭
EX3729	2"	Stucco	27	Minor Ribbed	Polyurethane***	18.4	8.0	Yes	16'2"	14'0"
EX3728	2"	Stucco	27	Flush	Polyurethane***	18.4	8.0	Yes	16'2"	14'0"
EX3709	1-3/8"	Stucco	27	Minor Ribbed	Polyurethane***	12.9	5.9	Yes	16'2"	14'0"
EX3708	1-3/8"	Stucco	27	Flush	Polyurethane***	12.9	5.9	Yes	16'2"	14'0"
EX3209	2"	Stucco	24	Minor Ribbed	Polystyrene	9.1	4.4	Yes	16'2"	14'0"
EX3208	2"	Stucco	24	Flush	Polystyrene	9.1	4.4	Yes	16'2"	14'0"
EX3159	1-3/8"	Stucco	27	Minor Ribbed	Polystyrene	6.5	3.4	Yes	16'2"	14'0"
EX3158	1-3/8"	Stucco	27	Flush	Polystyrene	6.5	3.4	Yes	16'2"	14'0"

* R-values calculated per DASMA TDS-163 on a solid door
** R-values calculated per DASMA TDS-163 using weighted average with 3/4" insulated glass.
*** Clopay's proprietary polyurethane Intellicore insulation.
✭Maximum Width and Height values listed are Standard sizing.

ENERGY SERIES

Model	Section Thickness	Emboss	Ext. Skin Pattern	Ext. Steel Gauge	R-Value*	Thermal Break	Max Width	Max Height
EX3220	2"	Stucco	Flush	20 gauge	9.1	Thermally broken	16'2"	14'0"
EX3213	2"	Woodgrain	Raised panel	24 gauge	9.1	Thermally broken	16'2"	14'0"
EX3211	2"	Woodgrain	Flush	24 gauge	9.1	Thermally broken	16'2"	14'0"
EX3200	2"	Stucco	Minor Ribbed	24 gauge	9.1	Thermally broken	16'2"	14'0"
EX3155	1-3/8"	Woodgrain	Flush panel	27 gauge	6.5	Thermally broken	16'2"	14'0"
EX3154	1-3/8"	Woodgrain	Raised panel	27 gauge	6.5	Thermally broken	16'2"	14'0"
EX3150	1-3/8"	Stucco	Minor Ribbed	27 gauge	6.5	Thermally broken	16'2"	14'0"

*Calculated door section R-value is in accordance with DASMA TDS-163

ENERGY SERIES WITH INTELLICORE

Model	Thickness	Emboss	Exterior Steel	Pattern	R-Value*	Std Max Width**	Std Max Height
EX3730	3"	Stucco	27 Gauge	Minor Ribbed	27.2	16'2"	14'0"
EX3724	2"	Stucco	24 Gauge	Minor Ribbed	18.4	16'2"	14'0"
EX3723	2"	Woodgrain	27 Gauge	Raised Panel	18.4	16'2"	14'0"
EX3722	2"	Stucco	20 Gauge	Flush	18.4	16'2"	14'0"
EX3721	2"	Woodgrain	27 Gauge	Flush	18.4	16'2"	14'0"
EX3720	2"	Stucco	27 Gauge	Minor Ribbed	18.4	16'2"	14'0"
EX3717	1 3/4"	Stucco	27 Gauge	Minor Ribbed	16.2	16'2"	14'0"
EX3718	1 3/4"	Stucco	27 Gauge	Flush	16.2	16'2"	14'0"
EX3715	1 3/8"	Stucco	27 Gauge	Minor Ribbed	12.9	16'2"	14'0"

*Calculated door section R-value is in accordance with DASMA TDS-163
**For sizes over 32'2" wide consult factory for specific configuration requirements.

Construction

EX904/EX904U

Made of 2-1/8” durable commercial grade aluminum, making it virtually maintenance-free and long-lasting.

Model 904U made of 2-1/8" durable commercial grade aluminum with polyurethane insulation with an R-value of 3.8 (with clear insulated glass)

Tongue-and-groove with integral joint seal for further reduction of air and water infiltration.

Smooth flat frame edge design for a more contemporary look.

Reinforcing fin included on doors wider than 14’. Doors 12’ and under do not use built-in reinforcing fin. Usage on widths 12’2” to 14’ depend upon glass weight. WINDCODE® doors may vary.

EX3700 SERIES

EX3200

EX3200 SERIES

EX3700

Hardware

HARDWARE FEATURES

SPRINGS

50000-Cycle-Springs

50,000 cycle spring standard

Option available for maximum cycles on a single shaft line

Springs are shot peened to improve resistance to fatigue

DOUBLE END STILES

double-end-stiles-double-end-hinges (1)
Helps improve hinge longevity

LIFT CABLE WITH THIMBLE

Cable-with-Thimble300X235
Thimble helps reduce wear and extend cable life

ROLLERS

Tandem-Roller300X317

Long stem tandem rollers provide longer roller life and quiet door operation

CABLE SNUBBER

cablesnubber-1

Maintains tension on lift cable to prevent it from coming off of the drum.

PUSHER SPRINGS

Pusher-Spring-web

Helps prevent cable slack. Provided with standard lift track.

Window (Full View) Material Options

Window Full View Material Options

GLAZING MATERIAL OPTIONS:

Clear Glass
Gray Tinted Glass
Bronze Tinted Glass
Mirrored Glass*
Obscure Glass
White Laminate Glass*
Black Laminate Glass*
Frosted Glass or Acrylic
Clear Acrylic
Gray Acrylic
White Acrylic
Clear Polycarbonate
Bronze Polycarbonate
Aluminum Panel Color Match
Sandtone**

Note: Extreme Series must have tempered glass

*Mirrored and laminate not available in 1/2"
**Available on select models

Glass options above only available on full-view sections. Glass thickness available in 1/8", 1/4" and 1/2". Tri-wall polycarbonate thickness available in 5/8". Low-E available on insulated glass.

COLOR OPTIONS:

Clear Aluminum (Anodized)
Standard White
Bronze (Painted)
Chocolate (Painted)
Bronze (Anodized)*
Black (Anodized)*
Dark Bronze (Anodized)*

*Additional cost and lead time may apply. The use of “Bronze (Painted)” is recommended due to slight color variation that may occur during the anodizing process.
Custom powder coat, Color Blast®, and anodized finishes available.

Premium finishing options include:

RAL color powder coat
187 different powder coat offerings
Custom Colors with Color Blast ® Garage Door Paint System
Bronze, dark bronze, black or custom color anodized finishing

*Model EX904U is not available with powder coat finish.

Steel Insulated Full View Door Options

Steel Insulated Full View Door Material Options

GLASS/WINDOW OPTIONS:


19-1/2” x 16”	42” x 16”	Modern Slim Windows*

*Available on models EX3728/EX3729 and EX3208/EX3209 only.

Models EX3728 and EX3729 are available with 1/8" clear tempered, 1/8" frosted tempered, 3/4" insulated tempered and 3/4" frosted insulated tempered glass. Additional glazing options include: matte, pebble, bronze tinted and impact rated window.

COLOR OPTIONS:

Standard White
Glacier White
Almond
Desert Tan
Sandtone*
Bronze
Mocha Brown
Gray
Charcoal
Chocolate
Black*
Trinar® White*
Lustra Black*±
Lustra Charcoal*±
Lustra Silver*±

*Available on select models
± Finish will have smooth texture
Custom powder coat and Color Blast® finishes available.

Premium finishing options include:

Custom Colors with Color Blast ® Garage Door Paint System
Bronze, dark bronze, black or custom color anodized finishing

Safety Features

Windload

Design pressures (DP) up to 36 psf depending on door size, configuration and exposure. Models tested 50% greater than DP.

Factory Installed Top Seal

Tek screws are used every 6” and at the ends of the sections to attach the top seal at the factory.

Technical Data Sheets

Specification Sheets

Drawing Generator

Need to see clearances and mounting details? Enter your opening dimensions into our Drawing Generator, and get custom generated drawings of your door with all the details.
Extreme Series Sectional Door Drawing Generator