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WS Series

Weld Seam Interlocking Ribs Steel Doors

Made from Galvanneal Steel with A40 (ZF120) coating.
Optional G90 (ZF275) coating also available.

Our Weld Seam Interlocking Ribs Door features continuous interlocking vertical steel ribs, which are fusion-welded along the edges to form a rigid, high-strength structure. This design provides excellent structural integrity, resistance to impact and warping, and is commonly used in high-security, industrial, or institutional applications.

Fire Rating:

up to 3hrs*

Thermal Rating:

R-1 to R-3**

Sound Rating:

up to STC 25 

Standard Compliance:

ASTM A653-B

*Depending on specification
**Depending on chosen insulation
Inquire

Commonly Used In

High security areas that require durability, reliability and safety such as:

Correctional Facilities
Industrial Warehouses
Mechanical and Utility Rooms
Military and Government Buildings
Airports and Transit System Stations
Stadiums and Arenas

Key Features

Exceptional Durability

Constructed with full-height interlocking steel ribs continuously welded at the seams, these doors deliver maximum structural rigidity. They resist warping and denting, even under heavy abuse and frequent use.

Long-Term Performance

Welded seams prevent internal deterioration and preserve door integrity, while the all-steel construction ensures consistent strength over time, even in harsh or high-moisture environments.

Enhanced Security

The fully welded internal rib design offers superior resistance to forced entry and tampering. This makes them ideal for high-security environments like correctional, military, and utility facilities.

Low Maintenance

The design minimizes maintenance needs by reducing vulnerabilities to internal damage, delamination, or structural failure. Ideal for facilities requiring reliable, long-life performance with minimal service.

Material Thickness Options

Weld Seam Interlocking Doors are available in both 16 Gauge and 14 Gauge steel.

One of the thickest standard materials used in the industry. Offers a very high level of security and durability.

The thickest and strongest material used in the construction of our doors. Typically used in our Weld Seam and STC series doors.  

Insulated Core Options

Our welded seam interlocking rib doors are insulated with fibreglass. 

Seam Edge Options

Weld Seam Interlocking Ribs Steel Doors are continuously welded along the vertical door edges.

Weld Seam

A strong, sealed joint that forms a single structural unit, enhancing strength and preventing moisture or air infiltration. After welding, the seams are ground smooth and filled or sanded to create a seamless appearance, especially for painted or architectural finishes.

Elevation Options

Whether you need visibility, air circulation or want natural light to come through, our door elevation* options allow you to meet any need or style.

* Door elevations refer to the various lite cutouts when specified by the architect.   

Doors with a lite cutout will be supplied with either a snap-in glazing kit or screw-in thermal kit, depending on specifications (glass is to be supplied and installed by others).  

See our resources page for technical information. 

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Important Information and Disclaimers

Fire Rated Doors
Fire-labelled doors will be provided for those openings requiring fire protection ratings, as determined and scheduled by the architect. Such products have been tested in strict conformance with CAN4 –S105, ASTM E – 152 or NFPA 252 as listed by a nationally recognized agency having a factory inspection service, in conjunction with the Canadian Steel Door Manufacturers Association, and will be constructed as detailed in the follow–up service procedures.

Unless specified otherwise, the location of hinges, locks, exit devices, push / pull plates, closers etc. will be as per All Steel Doors 2000 standard locations. Refer to this table for our standard hinge locations or
contact us at 416-297-8500 or frontdesk@asddoors.com for more information.

All doors should be thoroughly inspected upon receipt and all discrepancies, deficiencies and/or damages must be reported in writing to All Steel Doors 2000 within 3 days of receipt of shipment. All shipments are FOB All Steel Doors 2000. All damages incurred during shipment to be claimed by the distributor directly to the freight carrier. Doors must be removed from any wrapping or covering and be stored in a protected location in an upright position, on wood sills spaced with blocking to permit air circulation.
Install doors and hardware in accordance with hardware templates. Adjust operable parts for correct clearances and functions. For guidance on installation and storage of frames and doors, see the CSDMA’s recommendation guide.

Technical Resources

Click on the image to open the document.

Interlocking Rib Door
Construction Schematic

Door Handing
Chart

Standard Hinge
Location Chart

Door Elevation
Options

Warranty

All doors shall be guaranteed to be free of defects in material and workmanship for 1 year. There are no warranties expressed or implied, which extend beyond those described herein: 
If product is found to be defective, we will at our discretion either repair or replace the defective item(s). All Steel Doors 2000 Ltd. will not be liable or obligated for any damages of any kind beyond this repair or replacement. Misuse, abuse, improper storage and/or handling, improper installation or application of product will not be covered by warranty at our discretion. Our warranty terminates one year after product has been shipped from our plant and at any time anyone other than an individual authorized by us performs any work or repair, service or replacement of the product without prior written approval. 

Contact Us

Need more information on this door’s capabilities, specifications or custom options? Want to distribute our steel doors?

Get in Touch
All Steel Doors 2000 Ltd.

130 Milner Ave, Scarborough, ON M1S 3R3, Canada.

Contact

Phone: 416-297-8500

Toll Free: 1-877-353-0937

Fax: 416-297-0374
Email: info@asddoors.com

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