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Construction Labels and Signage

By Matt Wastradowski

Construction Labeling and Signage

According to OSHA, more than six million people work at roughly 250,000 construction sites throughout the United States on any given day. These employees routinely face numerous hazards, including heights, electrocution, falling objects, and more.

It’s important for employers to warn workers about these hazards and encourage safe practices at all times. One easy, efficient way to improve safety is to post construction labels and signage around the jobsite.

Here’s a look at what OSHA recommends for safety signage, various types of signs and labels, and how to keep workers safe.

Construction Site Hazards

First things first: You should know which hazards are present on your jobsite so you can help workers avoid, mitigate, or otherwise plan for those hazards. Here’s a quick breakdown of common construction site hazards so you can better prepare potentially life-saving visual communication.

  • Falls: Falls accounted for an astounding 40% of all construction industry deaths in 2014. Signs may advise workers to wear fall protection, stay clear of exposed areas at height, and more.
  • Electrocutions: Visual communication can warn workers of power lines, provide instruction for operating electric tools, and more.
  • Caught-in/between: This occurs when workers are caught in machinery or between moving objects. Visual communication can warn employees to keep back, point out alternate routes around the jobsite, and provide information about when the holes may be filled in.
  • PPE: Disaster can strike when employees don’t wear hard hats, gloves, safety vests, or other valuable pieces of equipment. Safety signs can alert users to the need for PPE, explain where on a jobsite it’s required, and show where PPE is located.

OSHA and ANSI Standards

OSHA’s standard for construction signs, signals, and barricades—29 CFR 1926.200—explains the agency’s requirements for safety signage. It explains that signs should be visible whenever work is performed; it also includes requirements for “Danger” signs, “Caution” signs, and other important visual communication around a jobsite.

Broadly speaking, OSHA suggests that construction labels and signage should conform to the ANSI Z535 standard. The standard dictates all aspects of sign design, including:

  • Sign and label colors
  • Signal words (such as “Danger,” “Warning,” and “Caution”)
  • Letter style and size
  • Sign and label placement

ANSI updated the standard most recently in 2011, and employers should abide by the new standard whenever possible. Updating old ANSI signs is voluntary for now, but updated signs may minimize confusion.

Here are the types of visual communication singled out in OSHA’s standard for construction signs, signals, and barricades —and how they should look.

“Danger” Signs and Labels

Danger - construction fall hazard sign“Danger” signs must only be used when immediate hazards exist and should have the following characteristics:

  • The upper panel should have a red background
  • A black outline should border the sign
  • The lower panel should have a white background; any additional symbols or wording should be in black

OSHA also allows for “Danger” signs that follow the ANSI Z53.1-1968 standard (which lacked the triangular safety symbol, but included the word “DANGER” set against a red oval); however, this standard is outdated, and employers should conform to the current ANSI Z535 standard whenever possible.

“Warning” Signs and Labels

OSHA’s standard for construction signs, signals, and barricades outlines requirements for “Danger” and “Caution” signs. However, the standard does not include a provision for “Warning” signs, typically used in general industry for hazards that may result in death or serious injury.

“Caution” Signs and Labels

Caution Construction Signs warn about hazards“Caution” signs should be used to warn about potential hazards and to warn against unsafe practices. They should feature the following characteristics:

  • Signs should have a yellow background, with a black upper panel and border
  • The word “Caution” should be in yellow lettering against the black panel
  • The lower yellow panel should be reserved for additional symbols or words, both in black

OSHA allows for “Caution” signs that follow the ANSI Z53.1-1967 standard; however, this standard is outdated, and employers should conform to the current ANSI Z535 standard, whenever possible.

Exit Signs and Labels

Fire & Egress Sign for Construction SiteOSHA maintains in 29 CFR 1926.200(d) that “Exit” signs and labels should have the following attributes:

  • The word “Exit” should be in legible red letters and 6" or taller
  • The main lines of the letters in the word “Exit” must be at least 3/4" wide
  • The sign must be printed on a white background

Safety Instruction Signs and Labels

Safety First Construction Site SignSafety instruction signs and labels typically communicate general instructions and suggestions for keeping the workplace safe. These signs might remind employees to use proper lifting techniques, encourage best practices around machinery with moving parts, and ask workers to put tools away when done.

OSHA, in 29 CFR 1926.200(e), outlines the following requirements for safety instruction signs and labels:

  • Signs must be white, with a green upper panel
  • White letters within the green upper panel should convey the sign’s general message (e.g. "Safety First")
  • Any additional wording should be printed in black letters on the white background

Directional Signs and Labels

Directional Construction SignDirectional signs are useful for helping employees find their way around a jobsite. OSHA, in 29 CFR 1926.200(f), lays out the following requirements for directional signs and labels:

  • Signs must be white, with a black panel and white directional symbol
  • Additional wording on the sign must be in black lettering on the white background

Construction Labels and Signage Resources from Graphic Products

Graphic Products’ free Best Practice Guide to OSHA Safety Signs covers best practices for labeling in accordance with OSHA and ANSI requirements and standards. The guide breaks down relevant requirements, provides an outline for how (and where) to post signs, and offers resources for getting started.

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