Marking Flags, Plastic Marking Flags, Utility Flags, Small Multi Color Flags - EngineerSupply

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Superior marking flags for designating important areas.

Marking Flags

Marking flags are great for marking the location of underground utilities, property lines, and any other important areas. They can be used by surveyors to mark a variety of areas, so you can find them in a number of colors and styles. At Engineer Supply, we carry survey flags from top-rated manufacturers. So if you’re looking for a place where you can find utility marking flags that you can use on a job site, feel free to look at what we have in stock.

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Marking Flags Features

Read our Helpful Article: Flagging and Marking your Area

Various colors

Variety of styles

Professional grade

Weather resistant

Great for surveying

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The Flagshooter makes it easier to place utility marking flags into the ground. Just load them into the device and shoot them into the ground. You can also purchase a caddy system, which can be a “one-stop shop” for when you need to shoot more than one type of utility flag. Just fill it up with whatever you need, and you can take it to the job site. The spray can system makes marking much easier. In fact, the Flagshooter can get your locating jobs done over 30% faster. If you’re ready to purchase this amazing product or any other marking flags, be sure to look at what we have in stock.


The Flagshooter comes with a set of practice flags so you can get a feel for how it works, but it only takes Flagshooter flags. It has several parts that make placing survey flags easier, including a handle and trigger that you will hold on to as you shoot them. The Flagshooter also has a depth stop and retaining gate, as well as quiver in the back so you can store an extra two or three clips. Once you pull the door open, just lay the flags in before sliding it shut. Make sure you rotate your hand to lift the door as it closes. To shoot flags, you’ll need a steady arm and a good push. Move the Flagshooter to the side afterward to make sure you clear the inserted flag. You can use the depth stop to set the depth in which the flags will be inserted, and the paint can holder is compatible with any can full of marking paint. Put it all the way in and use the trigger to paint.

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If a construction project requires excavation, it’s important to identify and mark objects located underground. Not only will it minimize the risk of damage, but it will also go a long way toward keeping workers safe. That’s why marking flags are an essential tool for surveyors and construction professionals. At Engineer Supply, we have everything you need to mark utility lines, boundaries, and any other important landmarks on a job site. If you’re looking for a place where you can find a broad selection of survey flags you can buy online, feel free to look at what we have in our store.


Marking flags are essential for surveyors and construction professionals, because they can be used to mark certain areas that are important to a specific project. Underground utility lines need to be marked, and the same is true for property boundaries. At Engineer Supply, we carry some of the best utility marking flags on the market. And we can offer them to you at an affordable price. Feel free to browse through the broad selection of surveying tools we have in stock, so you can find a product that will meet your specific needs.

Frequently Asked Questions

What are marking flags?

Marking flags are placed into the ground, so certain areas can be visible to anyone who goes near them. They can be used in a variety of applications, which can include but may not be limited to:
  • Utility construction and location.
  • Forestry and landscaping.
  • Pet containment.
Be sure to look at the broad selection of survey flags we have at Engineer Supply.

What do the marking flag colors mean?

Here are the different colors used in marking flags and what they mean:
  • Red— Electric power lines, cables, conduits, and lighting cables.
  • Orange— Telecommunication systems, alarm and signal lines, as well as cables or conduits.
  • Yellow— Lines used for natural gas, oil, steam, petroleum, as well as other gaseous or flammable materials.
  • Green— Sewer and drain lines.
  • Blue— Drinking water.
  • Violet— Reclaimed water, irrigation systems, and slurry lines.
  • Pink— Temporary survey markings, as well as any unknown or unidentified facilities.
  • White— Proposed routes or limits for excavation.
If you see flags in your yard or in any area on or around your property, don’t remove them. And if they’re marked with a logo along with the name of the utility, feel free to give them a call so you can ask about why it was placed.

What types of flags are used to mark utility lines?

Utility marking flags are placed into the ground to mark these areas, which can come in handy during an excavation project. They can come in a variety of colors, which will be chosen based on the type of utility line in the area.

Can I buy marking flags with plastic staffs?

Survey flags have staffs that can be made of steel wire, plastic, or fiberglass. Plastic flags can be safer around machinery and children, which can be an advantage in some areas. Feel free to look at the broad selection we have at Engineer Supply.

Where can I buy quality marking flags?

If you’re looking for one of the best places to buy quality utility marking flags online, Engineer Supply has what you need. We have a variety of survey flags in a variety of colors and patterns. Feel free to look at what we have in stock, so you can find a set of marking flags that’s right for you!

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