Diamond

About Diamond Manufacturing

Diamond is a leading independently owned manufacturer of steel doors and frames. Leveraging state-of-the-art automated manufacturing operations and one of a kind machinery, Diamond caters to a wide spectrum of projects and custom order, from commercial ventures to advanced industrial uses.

Diamonds Triple Foundation Framework

State of the art Machinery 

Our manufacturing facility is home to a unique array of state-of-the-art machinery, meticulously designed to elevate production standards. Each piece of equipment is engineered for precision and efficiency, allowing us to create bespoke products tailored to our clients’ needs.

Expedited Lead - Time

our  facility specializes in expedited production and delivery, ensuring that our clients receive their products faster than ever. With streamlined processes and cutting-edge technology, we maintain exceptional quality while meeting tight deadlines.

Quality Experience

quality is our cornerstone and exceptional customer experience is our mission. We utilize advanced technology and rigorous quality control measures to ensure that every product meets the highest standards. Our skilled team is dedicated to providing personalized service, guiding clients through every step of the process.

Codes and Standards 

As the industry embraces smarter and more sophisticated structures, a valuable opportunity arises to improve compliance with evolving codes and standards that enhance safety, efficiency, and durability. To ensure the highest levels of quality and performance, Diamond is committed to rigorous product testing.

MADE IN NORTH AMERICA

Doors & Frames manufactured in North America

UL 10C

Standard Specification — Positive Pressure Fire Test

ANSI/SDI A250.10

Test Procedure & Acceptance Criteria — Prime Painted Steel Surfaces for Steel Doors & Frames

ANSI/SDI A250.6

Recommended Practice — Hardware Reinforcing on Standard Steel Doors & Frames

ANSI/SDI A250.4

Test Procedure & Acceptance Criteria — Physical Endurance for Steel Doors, Frames & Frame Anchors

ANSI/SDI A250.3*

Test Procedure & Acceptance Criteria — Factory Applied Finish Coatings for Steel Doors & Frames

ASTM A1008*

Standard Specification — Cold Rolled Steel Sheets

SDI 113

Standard Practice — Steady-State Thermal Transmittance of Steel Door & Frame Assemblies

ASTM A653

Standard Specification — Galvanized / Galvannealed

SDI 117

Manufacturing Tolerances — Standard Steel Doors & Frames

Materials Standards

Standard Base Material

A40 Galvanneal Minimum Coating Weight [0.4 oz per sq. ft]

Optional Base Material

G90 Galvanized Minimum Coating Weight [0.9 oz per sq. ft]

Optional Base Material

A60 Galvanneal Minimum Coating Weight [0.6 oz per sq. ft]

ASTM A366

Standard Specification for Commercial Steel (CS) Sheet, Carbon, Cold-Rolled

ASTM A525

Standard Specification for Sheet Steel, Zinc Coated (Galvanized) by the Hot Dip Process

ASTM A526

Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) by the Hot-Dip Process, CQ

ASTM A653

Federal Standard Specification for Sheet Steel, Zinc Iron Alloy Coated (Galvanneal) by the Hot Dip Process Management Agency

ASTM A924

Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ZF180

Metric Equivalent Minimum Coating Designation for A60 Galvanneal [180 grams per sq. meter]

Z275

Metric Equivalent Minimum Coating Designation for G90 Galvanized [275 grams per sq. meter]