What Gauge Metal Are Hoffman Cabinets?

Hoffman cabinets are rugged metal enclosures used to house electronic equipment and components. They provide secure, protective housing for sensitive devices in industrial settings. Hoffman uses steel of varying gauges for their cabinet construction, depending on the size and intended application.

An Overview of Hoffman Cabinets

Hoffman has been manufacturing electronic enclosures since 1934. Their cabinets are found worldwide protecting controls, power distribution systems, automation devices, telecom equipment and more.

Some key features of Hoffman cabinets include:

• Durability – Made from quality steel, Hoffman cabinets can withstand impacts, corrosion, dust and weather. They offer NEMA Type protection ratings against ingress of solids and liquids.
• Configurability – Modular panels, racks, slots and mounts allow custom layouts for equipment. Accessories like shelves, drawers and wireways optimize space.
• Access Control – Hoffmann cabinets utilize locking doors, panels and latches to control access. Some models have advanced electronic access control.
• Cooling Options – Fans, vents and air conditioning units can be added to manage heat buildup from electronics. Filtered ventilation is available for dusty environments.
• ** Standards Compliance** – Hoffman products meet standards like UL, IEC, Mil-Spec, NEMA and others. Cabinets are Seismic Certified and RoHS Compliant.

Hoffman makes their cabinets using quality cold-rolled steel. But what gauge steel is used? That depends on the cabinet size and intended use.

Hoffman Cabinet Steel Gauge by Line

Hoffman organizes their enclosure products into several major lines, differentiated by size, structure and function. The commonly used steel gauges for each line are:

A Line – Small Accessories and Junction Boxes

The A Line consists of small junction boxes, terminal blocks and other accessories. These use lighter gauge steel from 0.04” to 0.075” (18 to 14 gauge). Their small size and modular nature requires thinner steel for fabrication and assembly.

E Line – Handheld and Portable Enclosures

The E Line are handheld and portable cases for transporting electronics. They utilize 14 to 16 gauge steel (0.075” to 0.06”). Their compact construction is supported by the lighter gauge. The cases have solid handles, water-resistant seals and impact protection features.

F Line – Indoor and Outdoor Cabinets

The F Line comprises Hoffman’s most popular enclosures for housing equipment indoors and outdoors. The majority are made using 14 gauge (0.075”) carbon steel. Some small models use 16 gauge. Panels are typically 16 to 18 gauge. Doors are 14 gauge steel with heavier 12 gauge hinges.

N Line – Modular Industrial Enclosures

The N Line are Hoffman’s modular industrial cabinets designed for large equipment. They use 12, 14 and 16 gauge steel for framework, panels and doors. Internal racks and mounts are 16 to 20 gauge. Heavy duty cast corners and braces provide stability with 14 gauge steel.

R Line – Server and Networking Racks

Hoffman R Line enclosures are designed specifically for IT equipment, servers and networking. They utilize 16, 18 and 20 gauge steel for sides, doors, tops and bottoms. The posts and rails use thicker 14 and 12 gauge steel for structural strength.

S Line – Harsh Environment Enclosures

The S Line cabinets are engineered for extreme environments with footage ratings of Type 3R to Type 12. They employ 10, 12 and 14 gauge carbon steel to meet these rigorous standards. Internal racks remain 16-20 gauge.

As seen above, heavier gauges between 10 to 14 are used for cabinet flooring, walls, doors and frames. This provides durability, impact resistance and structural integrity. Lighter 16 to 20 gauge steel is suitable for interior parts, panels and mounts.

Which Gauge Should You Choose?

So which gauge steel should you choose for your Hoffman cabinet installation? Consider these tips:

• Match the gauge to the cabinet line’s specifications. Most Hoffman product pages list the gauges used.
• Determine the environment and operating conditions. Outdoor, wet or hazardous sites require heavier gauges like 12 or 14.
• Factor in the weight of housed equipment. Heavy devices need stronger framework and flooring.
• Mind internal heat levels. More heat calls for greater ventilation options.
• Consider potential impacts in the space. Forklifts, vehicles, falling objects, etc. demand thicker steel.
• For custom cutouts and penetrations, stick to 16 gauge or thicker for structural stability.
• Use heavier gauges if installing heavy-duty latches, hinges or casters for rolling.
• Adhere to applicable standards for hazardous areas, outdoor ratings, seismic zones, etc.

Hoffman can provide guidelines on gauge selection when ordering. Their technical team can help determine the best match for your specific application.

Steel Gauge Terminology

Before examining exact steel gauge measurements, let’s define some terminology:

• Gauge – The gauge number specifies the steel thickness. Lower numbers indicate thicker steel. For example, 12 gauge is thicker than 16 gauge.
• Nominal Thickness – The approximate thickness in inches or millimeters based on the gauge number.
• Minimum Thickness – The minimum allowed thickness at any point as per manufacturing tolerances.
• Weight – The approximate weight per square foot in pounds.

Gauge Measurement Charts

Below are gauge thickness charts for reference, with both English and metric units:

Carbon Steel Gauge Chart – Imperial Units

| Gauge | Nominal Thickness (in) | Minimum Thickness (in) | Lbs/ft2 |
|-|-|-|-|
| 10 | 0.1406 | 0.1345 | 7.99 |
| 12 | 0.1094 | 0.1046 | 6.26 |
| 14 | 0.0781 | 0.0747 | 4.48 |
| 16 | 0.0625 | 0.0603 | 3.56 |
| 18 | 0.0500 | 0.0481 | 2.84 |
| 20 | 0.0396 | 0.0382 | 2.26 |

Stainless Steel Gauge Chart – Imperial Units

| Gauge | Nominal Thickness (in) | Minimum Thickness (in) | Lbs/ft2 |
|-|-|-|-|
| 12 | 0.1093 | 0.1017 | 7.74 |
| 14 | 0.0781 | 0.0724 | 5.57 |
| 16 | 0.0625 | 0.0579 | 4.42 |
| 18 | 0.0500 | 0.0462 | 3.52 |
| 20 | 0.0375 | 0.0348 | 2.64 |

Carbon Steel Gauge Chart – Metric Units

| Gauge | Nominal Thickness (mm) | Minimum Thickness (mm) | kg/m2 |
|-|-|-|-|
| 3 | 6.35 | 6.22 | 38.4 |
| 4 | 5.05 | 4.88 | 30.7 |
| 5 | 3.30 | 3.18 | 22.0 |
| 6 | 2.75 | 2.86 | 17.5 |
| 7 | 2.25 | 2.11 | 14.0 |
| 8 | 1.80 | 1.73 | 11.1 |

These charts give the standard thickness ranges for each gauge number. However, some variation can exist between steel grades and manufacturers. Refer to Hoffman’s technical specifications for exact cabinet steel thicknesses.

Why Gauge Matters

Steel gauge affects a cabinet’s strength, durability, weight and cost. Understanding gauge helps select the right enclosure for an application.

Strength – Thicker steel is stronger and more rigid. It resists bending from impacts, vibration and stress. Heavy equipment requires robust framing to support weight.

Durability – Heavier gauge steel lasts longer under daily use and abuse. It withstands corrosion, dents, and wear better than thin steel. Outdoor or hazardous installations need durable materials.

Weight – The thicker the steel, the heavier the enclosure. Facility structures must support very heavy cabinets. Thinner steel enables large enclosures to stay under weight limits.

Cost – Steel gauge significantly affects material cost and fabrication difficulty. More steel means higher cabinet expense. But it also indicates better quality and longer service life.

Standards – Electrical standards often dictate minimum gauges for safety and integrity. Outdoor, seismic and hazardous ratings also require specific thicknesses able to meet strict performance specifications.

Hoffman Gauge Selection Guidelines

Here are some key factors that guide the gauge selection for Hoffman cabinets:

• Cabinet size – Larger enclosures need thicker framework and bracing to avoid flexing under their own weight.
• Weight capacity – Heavier equipment necessitates more robust structural support. Check manufacturer equipment specs.
• Interior access – Frequent component access requires sturdy steel hinges, doors, and latches to endure repeated use.
• Temperature – Environments with heat buildup may limit thickness due to insufficient airflow. Prioritize ventilation capacity instead.
• Seismic zones – Seismic requirements call for specific gauges and reinforcing to withstand shaking and shearing forces.
• Impacts – Areas with moving equipment, vehicles, heavy foot traffic, etc. need impact-resistant steel.
• Outdoor use – Exterior installations demand thicker, weatherproof steel to survive long-term exposure to elements.
• Hazardous areas – Hazardous environments require steel that maintains Type rating integrity and component protection.
• Standards – Ensure gauge complies with all applicable UL, NEMA, NEC, IEC, CE and other relevant standards.

Hoffman specialists have extensive expertise matching gauges, materials and designs to unique applications across industries. Engage their team early when selecting an appropriate Hoffman cabinet.

Common Hoffman Cabinet Gauges

To summarize, here are typical gauges for key Hoffman enclosure components:

• External Frame and Walls – 12, 14 or 16 gauge
• Doors – 14 or 16 gauge
• Hinges and Latches – 12 or 14 gauge
• Interior Racks – 16, 18 or 20 gauge
• Side Panels – 16, 18 or 20 gauge
• Junction Boxes – 18 to 22 gauge

Again, stated gauges may vary across Hoffman’s vast product line. Double check the technical specifications for your particular models when ordering.

Key Takeaways on Hoffman Cabinet Gauges

• Hoffman utilizes between 10 to 22 gauge steel for their enclosures, depending on size and purpose.
• Heavier gauges from 10 to 14 are used for external cabinet structures.
• Lighter 16 to 22 gauges are suitable for interior panels, racks and modular accessories.
• Consider all environmental and application factors when selecting gauge.
• Check technical specifications of individual Hoffman models for the exact thicknesses used.
• Heavier gauges provide greater structural integrity and durability but cost more.
• Hoffman specialists can provide expertise advising on gauge selection.

Frequently Asked Questions

Below are some common questions on Hoffman cabinet steel gauges:

What is the Most Common Gauge for Hoffman Cabinets?

14 gauge steel is the most prevalent in Hoffman product lines, used for enclosure walls, floors, frames and doors on many standard models. 12 gauge provides even greater strength for larger enclosures.

How Thick is 14 Gauge Steel?

14 gauge steel has a thickness of 0.0747 inches or 1.9 millimeters as per the gauge charts. This provides durable protection while avoiding the weight and cost penalties of heavier gauges.

Is 16 Gauge Steel Strong Enough for a Hoffman Enclosure?

Yes, 16 gauge is suitable for many Hoffman models, particularly for interior racks, panels and modular mounts. It meets required mechanical strength and electronics protection standards in NEMA ratings up to Type 12.

Can You Use 18 Gauge Steel for a Hoffman Cabinet?

18 gauge can work for small Hoffman modular enclosures, terminal blocks and junction boxes. It should not be used for primary enclosure structures except on their smallest cabinets. The thinner steel compromises durability.

What Gauge Stainless Steel Do Hoffman Cabinets Use?

Hoffman offers stainless steel options on many enclosure lines. These most commonly use 14, 16 or 18 gauge steel for enhanced corrosion resistance compared to carbon steel models.

How Thick Should the Steel Be for Outdoor Hoffman Cabinets?

Outdoor Hoffman cabinets require 12 to 14 gauge steel to withstand long-term exposure to elemental forces. Some specifiers recommend using heavier 10 gauge steel for applications with extreme weather, impacts or vibration.

Can Hoffman Provide Custom Gauges If Needed?

Yes, Hoffman can provide custom steel gauges upon request for specialized applications. This may entail different material grades as well. Hoffman in-house fabrication capabilities support virtually any enclosure requirement.

Conclusion

Hoffman’s heavy-duty electronic enclosures utilize a range of steel gauges from 10 to 22 to deliver optimal strength, durability and functionality across use cases. Cabinet lines for harsh, large-scale industrial applications rely on robust 10 to 14 gauge steel for maximum structural integrity and impact resistance. Interior modular accessories and small junction boxes employ thinner 18 to 22 gauge steel successfully due to their scale and modular nature.

Understanding the factors that affect gauge selection allows matching the right steel thickness with enclosure size, equipment weight, environmental conditions, relevant standards and user needs. Hoffman’s depth of experience equips them to make expert recommendations on achieving the ideal balance. By following Hoffman’s guidelines and referencing technical specifications, operators can be confident they are choosing cabinets with steel gauges able to deliver unmatched protection and longevity for any critical equipment.