Type 304 Stainless Steel Knocked Down or Welded Frame with #4 Brushed Finish for Commercial Door Pairs

16ga. Type 304 Stainless Steel Commercial Knocked-Down (KD) Masonry Frames with #4 Vertical Grain Brushed Finish are designed for installation into new masonry walls; brick, concrete block (CMU), stone, or poured concrete construction. They can also be used for new and existing wood or steel stud walls and are designed for use in commercial, industrial, and high-hygiene settings. These heavy-duty commercial frames offer exceptional performance and durability.

  • Superior Corrosion Resistance
  • Installation into New Masonry or New & Existing Stud Walls
  • Easy Installation
  • Optional Fire Rating up to 3 Hours
  • Standard and Custom Hardware Preps Available
  • Custom Sizes Available

Product ID: SSF-MAS-304-KD-DBL

FREE delivery to most businesses and jobsites on qualifying orders.

Most orders ship within 3-5 business days. Get a quote now.

HOW TO ORDER

  • Get a written quote from a USA Fire Door Solutions Specialist
  • Approve & we ship your order
  • Click the button below or call us to get started. You can upload plans, photos or files if you have them.

Anchor Options

floor anchor
Floor Anchor
(included)

Masonry Wire Anchor
Masonry Wire Anchor
For new masonry construction

Punch and Dimple Anchor
Punch and Dimple Anchor
For existing masonry or wood stud walls

Steel Stud Anchor
Steel Stud Anchor
For new steel stud construction

Universal or Wood Stud Anchor
Universal Stud Anchor
For new steel or wood stud construction

Product Details

16ga. Type 304 stainless steel commercial knocked-down masonry double door frames with #4 vertical grain brushed finish are constructed from high-quality stainless-steel sheets formed then punched, prepped, and reinforced for hardware providing a durable and uncompromising frame. Knocked down stainless-steel masonry double door frames are ideal for new masonry walls; brick, concrete block (CMU), stone, or poured concrete construction and are also used for new and existing wood or steel stud walls. Engineered for durability, these damage-resistant stainless-steel frames withstand heavy daily use in high-traffic commercial, food-processing, hygienic, and industrial environments. They can be used in virtually any application for a dependable, reliable, and long-lasting solution whether it be interior or exterior. Supporting standard or custom hinge and hardware preparations these doors can also achieve up to a 3-hour fire rating. For more information, please speak to an Account Manager today!

Frame Specifications

  • Model shown as 3-piece knocked down frame with choice of anchors (floor anchors included)
  • Standard anchor options: Masonry Wire (MA), Masonry T (T), Wood Stud (WS), Steel Stud (SS), Multi-Purpose (MP) (additional anchor options available upon request)
  • Unequal double rabbet frame with 2” head and jamb face and a 5/8” stop height (4” header face and custom designs available upon request)
  • Exact fit mitered corner connections between head and jamb
  • For both interior and exterior applications
  • SDI Level 3: Extra heavy duty 16ga. 304 stainless steel with #4 finish
  • Meets or exceeds ANSI 250.6 and ANSI 250.8 standard
  • Fire rated up to 3 hours and certified by WHI / ITS (Warnock Hersey / Intertek Testing Service) with positive pressure and “S” smoke ratings included (meets or exceeds NFPA 80)
  • Key characteristics of a #4 finish: Linear fine parallel lines, low-gloss sheen, highly durable, corrosion resistant, easily cleaned and sanitized non-porous surface
  • Additional features include 7-gauge heavy duty hinge reinforcements, ½” single return, optional 9/32” silencer preps
  • Sound transmission class (STC): 25 to 50 based on installation and grouting or sealing (for higher STC ratings consult an account manager)
  • Custom sizes and preparations available – please speak with an Account Manager today!

How to ORDER

Tell us what you need and we'll do the work for you! Most projects are quoted within 24 hours.

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01

Step 1

TELL US WHAT YOU NEED

Share any projects details you have. Or just send us a message and we'll have someone reach out to you. 

  • Rapid Response Time
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02

Step 2

GET A WRITTEN QUOTE

Your dedicated account manager will send you a quote or contact you with any questions.

  • Quick Turnaround

03

Step 3

APPROVE & WE SHIP

We'll work with you thoroughout the entire process and carefully track your order until it's received.

  • Priority Lead Times

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