Home / Commercial / Sectional Overhead Doors / Architectural Series – Steel
Our steel doors are perfect for any application requiring visibility, natural light, strength and energy efficiency.
Clopay’s full-view series doors are ideal for commercial buildings requiring visibility, access to natural lighting and modern look. They’re the perfect choice for everything from restaurants and fire stations to service stations and car dealerships. These overhead doors are available with aluminum or steel frame construction, providing options that ensure maximum durability and reliability. Customize your door with a wide variety of window, color, design and performance options.
| Model | Section Thickness | Exterior Gauge | Section Design | Insulation | R-Value Solid | R-Value w/Glass | U-Factor Solid | U-Factor w/Glass | Max Width✭ | Max Height✭ |
|---|---|---|---|---|---|---|---|---|---|---|
| 3729 | 2″ | 27 | Minor Ribbed | Polyurethane* | 18.4 | 8.0 | 0.19 | 0.39 | 20’2″ | 18’0″ |
| 3728 | 2″ | 27 | Flush | Polyurethane* | 18.4 | 8.0 | 0.19 | 0.39 | 20’2″ | 18’0″ |
| 3709 | 1-3/8″ | 27 | Minor Ribbed | Polyurethane* | 12.9 | 5.9 | 0.21 | 0.4 | 18’2″ | 16’0″ |
| 3708 | 1-3/8″ | 27 | Flush | Polyurethane* | 12.9 | 5.9 | 0.21 | 0.4 | 18’2″ | 16’0″ |
| 3209 | 2″ | 24 | Minor Ribbed | Polystyrene | 9.1 | 4.4 | 0.24 | 0.45 | 20’2″ | 18’0″ |
| 3208 | 2″ | 24 | Flush | Polystyrene | 9.1 | 4.4 | 0.24 | 0.45 | 20’2″ | 18’0″ |
| 3159 | 1-3/8″ | 27 | Minor Ribbed | Polystyrene | 6.5 | 3.4 | 0.3 | 0.44 | 18’2″ | 16’0″ |
| 3158 | 1-3/8″ | 27 | Flush | Polystyrene | 6.5 | 3.4 | 0.3 | 0.44 | 18’2″ | 16’0″ |
Notes:
R-Values Solid calculated per DASMA TDS-163 on a solid door
R-values with Glass calculated per DASMA TDS-163 using weighted average with 3/4″ insulated glass.
Tested door U-factor is in accordance with DASMA 105
*Clopay’s proprietary polyurethane Intellicore insulation.
Doors are stucco embossed
All models contain thermal break
✭Maximum Width and Height values listed are Standard sizing.
![]() 19-1/2” x 16” | ![]() 42” x 16” |
![]() Modern Slim Windows* |














Lustra Silver*±

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








| Joint Design: | Tongue and groove section with continuous foam thermal break prevents cold or heat from passing through the section |
| Paint System: | 3-stage paint process delivers maintenance free finish that resists rust perforation |
| Limited Warranty: | 10-year paint / 10-year delamination / 1 year material and workmanship / 1 year hardware |
| Section Design/Emboss: | (3728) 2” thick stucco embossed steel with flush exterior skin pattern (3729) 2” thick stucco embossed steel with minor ribbed exterior skin pattern |
| Steel Gauge: | 27 exterior; 27 interior |

| Section Design/Emboss: | (3708) 1 3/8” thick stucco embossed steel with flush exterior skin pattern (3709) 1 3/8” thick stucco embossed steel with minor ribbed exterior skin pattern |
| Steel Gauge: | 27 exterior; 27 interior |

| Section Design/Emboss: | (3208) 2” thick stucco embossed steel with flush exterior skin pattern (3209) 2” thick stucco embossed steel with minor ribbed exterior skin pattern |
| Steel Gauge: | 24 exterior; 27 interior |

| Section Design/Emboss: | (3158) 1 3/8” thick stucco embossed steel with flush exterior skin pattern (3159) 1 3/8” thick stucco embossed steel with minor ribbed exterior skin pattern |
| Steel Gauge: | 27 exterior: 27 interior |

Contact us for Specs and Drawings.
Steel insulated full view doors, models 3158 (stucco embossed, flush surface) and 3159 (stucco embossed, minor ribbed surface), are designed for use in commercial, retail, restaurant, and industrial facilities.
Clopay Models 3728 (flush/no ribs) and 3729 (with minor ribs) are a smart choice for applications requiring visibility, natural light, strength, and energy efficiency.
Models 3208 and 3209 provide visibility, natural light, and energy efficiency for commercial, retail, service, and industrial facilities.
Models 3708 and 3709 offer visibility, natural light, energy efficiency, and durability with Intellicore® polyurethane technology.
Our ControlGard® SD Chain Hoist allows users to operate the door more safely.
We take form and function seriously. From blueprints to reality, our expert engineers design commercial doors that exceed expectations for performance and elevated style.
Commercial door closures are manufactured with durable hardware to meet the demands of high-traffic environments. All of our doors include the standard hardware listed below. To view hardware upgrades, select the “Options” tab.
Commercial and industrial buildings often need to meet code requirements and ADA standards for space. Avoid wear and tear on overhead doors and mitigate safety risks by providing your client with the best overhead door track for their application. Clopay track solutions include standard lift, low headroom with a front or rear mount, follow roof pitch lift, full vertical lift, and combination options.
Commercial and industrial overhead garage doors vary in size, design, and operation. Your torsion spring ensures that your door withstands the test of time and maintains peak performance. Clopay torsion spring options can be designed for the industry standard of 10,000 cycles or can be upgraded to 25,000, 50,000, or 100,000 expected life cycles.
Discover our wide range of garage door styles and professional installation services. Let us help you find the perfect door and ensure a flawless installation.