Standards
Our products comply with the highest standards of the industry to offer you durable, high performance and safety products. Since we offer a large variety of products, please do not hesitate to communicate with us for more detailed information.
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NAAMM-National Association of Architectural Metal Manufacturers
HMMA 810
Hollow Metal Doors
HMMA 820
Hollow Metal Frames
HMMA 831
Recommended Hardware Location for Hollow Metal Doors and Frames
HMMA 841
Tolerances and Clearances for Commercial Hollow Metal Doors and Frames
HMMA 850
Fire Rated Hollow Metal Doors and Frames
HMMA 860
Guide Specification for Hollow Metal Doors and Frames
HMMA 861
Guide Specification for Commercial Hollow Metal Doors and Frames
HMMA 866
Guide Specification for Stainless Steel Hollow Metal Doors and Frames
HMMA 867
Guide Specifications for Commercial Laminated Core Hollow Metal Doors and Frames
Fire-rating standards
NFPA 80
Standard for Fire Doors and Other Opening Protectives
NFPA 252
Standard Methods of Fire Tests of Door Assemblies
NFPA 257
Standard on Fire Test for Window and Glass Block Assemblies
CAN4-S104
Fire Test of Door Assemblies
CAN4-S106
Standard Method for Fire Tests of Window and Glass Block Assemblies
ANSI UL 10 C
Standard for Positive Pressure Fire Tests of Door Assemblies
BS 476-22
British Standard, Fire Test on Building Materials and Structures
ANSI-American National Standard Institute
A115.1G
Specification for Hardware Preparation in Standard Steel Doors and Frames
A117.1
Manufacturing Tolerances Standard Steel Doors and Frames
A250.3
Test Procedure and Acceptance Criteria for Factory Applied Finish Painted Steel Surfaces for Steel Doors and Frames
A250.4
Test Procedure and Acceptance Criteria for Physical Endurance for Steel Doors, Frames, Frame Anchors and Hardware Reinforcings
A250.6
Recommended Practice for Hardware Reinforcing on Standard Steel Doors and Frames
A250.8
Recommended Specifications for Standard Steel Doors and Frames
A250.10
Test Procedure and Acceptance Criteria for Prime Painted Steel Surfaces for Steel Doors and Frames
A250.13
Testing and Rating of Severe Windstorm Resistant Components for Swinging Door Assemblies
ASTM-American Society for Testing and Materials
A653/A653M
Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
A240/A240M
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
C518
Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C1363
Standard Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus
E90
Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
SDI-Steel Door Institute
100
Recommended Specification for Standard Steel Doors and Frames
112
Zinc-Coated (Galvanized/Galvannealed) Standard Steel Doors and Frames
118
Basic Fire Door Requirements
Others
LEED-NC
Recycled content
IBC
International Building Code
NBC
National Building Code of Canada
For quality purpose, our steel gauge exceeds the industry standard NAAMM/HMMA 803. Please refer to the following chart for more details.
| STEEL GAUGE | DE LA FONTAINE | NAAMM/HMMA 803 |
| 7-gauge | 0.187" (4.8 mm) | 0.167" (4.2 mm) |
| 10-gauge | 0.129" (3.3 mm) | 0.123" (3.1 mm) |
| 12-gauge | 0.105" (2.7 mm) | 0.093" (2.3 mm) |
| 14-gauge | 0.071" (1.8 mm) | 0.067" (1.7 mm) |
| 16-gauge | 0.056" (1.4 mm) | 0.053" (1.3 mm) |
| 18-gauge | 0.044" (1.1 mm) | 0.042" (1.0 mm) |
| 20-gauge | 0.034" (0.86 mm) | 0.032" (0.8 mm) |