ThermaSeal® TM300
Sectional Insulated Steel Door
The ultimate choice for thermal protection is the Raynor ThermaSeal TM300 sectional insulated steel door with a 24.54 R-value. This 3″ thick commercial door is the most energy-efficient in the ThermaSeal line.
ThermaSeal TM300 is ideal for commercial warehousing, agriculture, fire station, and ambulance bays, refrigerated buildings, underground parking, and high-security facilities.

TM300 Features and Options
Raynor ThermaSeal TM300 sectional insulated steel commercial doors are available with numerous features and options, including those listed below.

Maximum Thermal Protection
Energy-saving polyurethane foam insulation is used to deliver exceptional R-values.

Rugged Hardware and Springs
The ThermaSeal TM300 door comes packaged with the right combination of long-lasting hardware, track, and springs to precisely match your door’s size and application.

Reduced Airflow
Dual vinyl barriers dramatically reduce air infiltration. A true thermal break prevents heat loss and eliminates any metal-to-metal contact between surfaces.

Decreased Energy Costs
Raynor ThermaSeal TM300 doors help you reduce energy costs with a u-shaped, vinyl bottom weatherseal and sturdy aluminum retainer.

Choice of Windows
Select either 24″ x 8″ (shown), 24″ x 12″, or 34″ x 16″. Raynor ThermaSeal TM300 doors are also available with aluminum fullview window sections. Choose from a variety of insulated glass, acrylic, tempered, and polycarbonate styles to suit any application.

High-cycle Counterbalance Systems
For reliable operation in high traffic areas, choose high-cycle torsion springs with 25,000, 50,000, or 100,000-cycle life.* For reduced maintenance and ultra-smooth operation in heavy-use applications, choose a weight counterbalance system. *Some options may be limited to door size or model.

Customized Track and Hardware Systems
Track systems are supplied to fit special clearances, inclines, or contour applications. Hardware and track systems can be designed to fit any need. Additional trussing is available for special wind loading applications. A QuikClip™ pre-assembled track option is also available.

Secure Locks
In applications where control and access are important, choose from a variety of locking options to help keep your building secure. Locks come in both inside and outside variations.

Carbon Monoxide Vent
Allows you to channel fumes to the outside when the door is closed. Available in a variety of sizes.

Removable Center Posts
Carry-away and swing-up options are available for extra-wide openings. Ideal for agricultural or airplane hangar applications.

Pass Door
Pass doors conserve energy by allowing entry door access without the full operation of the garage door and minimize wear and tear by conserving cycle life. Some options may be limited to door size or model.
Colors
*Features the high performance PVDF coating (TRINAR® or equivalent) paint process that provides extended UV protection against fading.
>>Not all colors are available on all embossments. Contact your local Raynor Authorized Dealer for a complete listing of colors available by embossment.
>>The swatches shown on monitors, mobile devices, and printed materials may vary from the actual steel color. Contact your local Raynor Authorized Dealer for color samples.
Optional Post Paint Process*
Raynor’s ColorWave™ features Sherwin-Williams® next-generation post paint system for your garage door. With 1,500 colors to choose from, home and business owners can couple this elite paint system with state-of-the-art Raynor manufacturing to craft the perfect look for their home or project.
* Not all colors are available in solar reflective paint, colors that are not available as solar reflective cannot be used on polyurethane doors.
Product Details
Door | ||
Type | Commercial Sectional Insulated Steel Garage Doors | |
Model | ThermaSeal TM300 | |
Opening Size | 40’ x 24’ Max | |
Operation | Manual, Motor or Hand Chain | |
Sections | ||
Construction | 3-Layer Sandwich | |
Material | Steel | |
Surface Texture | Exterior and Interior Stucco Pencil Groove | |
Section Joint | Tongue-in-Groove | |
Section Thickness | 3″ | |
Gauge | Steel; Exterior: 25-gauge; Interior: 26-gauge | |
Stiles | 16-Gauge | |
Insulation | NeuFoam™ Polyurethane (24.54 calculated R-value) | |
Seals | Thermal Break, Bottom Seal (3″, 4″ EPDM, or 3″ Yellow); Optional Header Seal | |
Trussing | 20 P.S.F. Wind Load (designed 13.3); Material: U-bar Trusses 4″, 6″, or 8″ sizes. U-bars needed starting at 16′-3″. | |
Panel Configuration | NA | |
Color | White, Frost White*, Beige*, Brown, or Sepia* Raynor’s ColorWave™ optional post paint process with 1,500 Sherwin-Williams® colors *High performance PVDF coating (TRINAR® or equivalent) | |
Windows | 24″ x 8″, 24″ x 12″, rigid frame fullview window in 34″ x 16″, or fullview aluminum section. Choose from clear insulated glass and clear insulated tempered. | |
Track | ||
Type | Normal Headroom, Rear Mount Low Headroom, Front Mount Low Headroom, Lift Clearance, Vertical Lift, Incline, Contour, and QuikClip™ Pre-Assembled Track Options | |
Finish | Galvanized | |
Size | 2″ or 3″ | |
Gauge | Minimum 16-Gauge | |
Counterbalance System | ||
Type | Torsion Spring, Tandem Shaft Torsion Spring, or Weight Counterbalance | |
Springs | Spring Inner Diameter: 2-1/4″, 3-1/2″ or 5-1/2″; Duplex or High Cycle (25K, 50K, 100K) | |
Shafts | Tube (13-Gauge) or Solid (D-Shaft, 1″ Keyed, 1-1/4″ Keyed) | |
Hardware/Accessories | ||
Hinges | 11, 13, 14-Gauge or Hybrid | |
Rollers | Standard or Heavy Duty | |
Finish | Galvanized | |
Lock | Interior Slide Lock or Exterior Lock Bars | |
Seal(s) | Header Seal or Jamb Seal | |
Hanger Angle | 11, 13, 16-Gauge | |
Posts | Swing-Up or Carry-Away |
Specifications and Drawings
Select a link below to download Raynor ThermaSeal TM300 specifications and drawings.
Word | Drawings | ||
TM300 Product Specs | DOCX | ||
TM Series Product Line Specs | DOCX | ||
Full Sectional Product Line Specs | DOCX | ||
BIM Objects | DWG | RFA |
Technical Information
Section and Panel Schedules
Door Width | Number of Raised Panels | Door Height | Number of Sections | |
---|---|---|---|---|
5′ 3″ – 9′ 2″ | 2 | Up to 8′ 2″ | 4 | |
9′ 3″ – 12′ 2″ | 3 | 8′ 3″ – 10′ 2″ | 5 | |
12′ 3″ – 16′ 2″ | 4 | 10′ 3″ – 12′ 2″ | 6 | |
16′ 3″ – 20′ 2″ | 5 | 12′ 3″ – 14′ 2″ | 7 | |
24′ 3″ – 28′ 2″ | 7 | 16′ 3″ – 18′ 2″ | 9 | |
20′ 3″ – 24′ 2″ | 6 | 14′ 3″ – 16′ 2″ | 8 | |
18′ 3″ – 20′ 2″ | 10 |
ThermaSeal Series Warranty
DOOR SECTIONS
Raynor® warrants the door sections against defects in material and workmanship, and deterioration due to rust-through for ten (10) years from date of delivery to the original purchaser. Raynor also warrants the door sections against delamination of the polyurethane foam insulation from the steel skins for ten (10) years from date of delivery to the original purchaser. Window components are warranted against defects in material and workmanship for one (1) year from date of delivery to the original purchaser.
HARDWARE
Raynor® warrants all hardware against defects in material and workmanship for one (1) year from date of delivery to the original purchaser.
SPRINGS
Raynor® warrants springs against defects in material and workmanship for one (1) year from date of delivery to the original purchaser. The limited warranty for special high-cycle springs is prorated by percentage of cycle use, and must be determined by the use of a non-resettable cycle counter.
ColorWave™ Post Paint Process
Raynor® warrants the ColorWave post paint process (exterior only) against chipping, cracking, and/or peeling (losing adhesion), for a period of (5) five years from the date of delivery to the original purchaser. Fading and chipping, cracking, or peeling caused by dents or scratches are not covered under this warranty.
WARRANTY LIMITATIONS and EXCLUSIONS
Under the terms of this limited warranty, for any door components that are found to be defective upon inspection by authorized Raynor personnel, Raynor will, at its option, repair or replace the defective door components. Labor charges for the installation or repairs shall be the responsibility of the consumer and must be performed by a qualified installer. This warranty applies only to doors that are professionally installed by a qualified installer.
This limited warranty extends only to the original purchaser, provided the door is installed in the original purchaser’s place of business. This limited warranty is not transferable.
This limited warranty does not apply to any damage or deterioration to the door caused by abuse, negligence, missing components, accidents, use of pressure washers, dents or scratches. Shavings from trolley rails not properly removed and cleaned from the exterior door surface causing rust are not covered by this warranty. Failure to provide proper maintenance voids this limited warranty. Field applied paint failure is not covered by this limited warranty. Refer to the Care and Maintenance Instructions and Painting Instructions.
This limited warranty does not apply to damage caused by fire, an act of God, accident, vandalism or graffiti. Damage or deterioration caused by saltwater coastal areas (within two miles), hazardous or corrosive chemicals and fumes including, but not limited to, alkaline, acids, muriatic acids, road salt or salt environments, harsh cleaning agents, and fertilizers are not covered by this limited warranty.
This limited warranty does not apply to building damage caused by moisture infiltration through or around the door. A garage door system is water-resistant, but not waterproof. When a garage door system is properly assembled, installed, and maintained the risk of significant water infiltration is low.
Raynor shall not be liable for any consequential or incidental damages.
ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY EXPRESSLY EXCLUDED.
Some states do not allow the exclusion or limitation of consequential or incidental damages, so the above limitation or exclusion may not apply to you.
Claims for defects in material and workmanship covered by this warranty shall be made in writing with proof of purchase and photographs of the product in question to the dealer from whom the product was purchased or call Raynor at 1-800-4-RAYNOR within the warranty period. Raynor may choose to have the product returned for inspection.
This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.