Whether your commercial door application calls for excellent thermal efficiency, has stringent wind load requirements, or requires a custom oversized door, Wayne Dalton has the door for you.  From our extremely efficient and durable Thermospan® line of doors to our economical steel sectional doors, every Wayne Dalton door is engineered and built to provide ultimate quality. With Wayne Dalton, you get more insulation choices, including the highest R-value rating available in a standard design. You'll find the widest range of design and performance options offered in any commercial sectional door offering.

Guide to Sectional Doors

Choosing the right sectional door for your application can seem like a daunting task, but it doesn't have to be. The following chart should help you narrow down your search to a few door models.

Insulated

Foamed-in-Place Polyurethane

Model Calculated
R-Value
Steel
Gauge
Section
Thickness
Integrated
Struts
Max Standard
Width
ThermoMark™ 530 R=26 27 3" No 40'2"
Thermospan® 200-20 R=17.5 20 2" Yes 24'2"
Thermospan® 200 R=17.5 27 2" Yes 26'2"
ThermoMark™ 5200 R=16.22 27 1 7/8" No 26'2"
ThermoMark™ 5255 R=16.22 27 1 7/8" No 26'2"
Thermospan® 150 R=14.16 27 1 3/8" Yes 26'2"
ThermoMark™ 5150 R=12.12 27 1 3/8" No 20'2"
ThermoMark™ 5155 R=12.12 27 1 3/8" No 20'2"
Thermospan® 125 R=10.79 27 7/8" Yes 16'2"

 

Polystyrene (Option for non-insulated doors)

Model Calculated
R-Value
Steel
Gauge
Section
Thickness
Max Standard
Width
Joint Profile
Model C-24 R=7.6 24 2" 30'2" Tongue-and-groove
Model C-2400 R=7.6 Nominal 24 2" 20'2" Tongue-and-groove
Model 2411 R=7.6 Nominal 24 2" 20'2" Ship lap
Model 216 R=7.6 16 2" 28'2" Ship lap
Model C-20 R=7.6 20 2" 28'2" Tongue-and-groove
Model 220 R=7.6 20 2" 30'2" Ship lap
Model 2415 R=7.6 24 2" 32'2" Ship lap