Shop bright, weather-resistant marking flags for surveying, utility locating, construction, landscaping, irrigation, and yard projects. Choose 4 x 5-inch vinyl flags on 15- or 21-inch steel wire in 50-, 100-, and 1,000-count packs. Select the color, height, and quantity that fit your job.
Shop all marking flags by color and pack size
Choose the Right Marking Flags
Use the project size, ground conditions, and viewing distance to choose the best flag quantity and wire-staff height.
| Project Need | Recommended Option |
|---|---|
| Small yard, garden, or irrigation project | 50-count pack |
| Landscaping, utility, or construction job | 100-count pack |
| Large crews or repeated projects | 1,000-count bulk pack |
| Lawns and standard jobsites | 15-inch wire staff |
| Tall grass, uneven ground, or longer viewing distances | 21-inch wire staff |
Choose a color that stands out against the ground and surrounding materials. When flags represent underground utilities, follow the required utility-marking color system and local rules.
Survey and Utility Flag Color Code Chart
Most searches about flag color meanings refer to underground utility markings. Many crews use the American Public Works Association’s uniform color code, but you should always follow local requirements and the instructions provided by the utility locator or surveyor.
Common Utility and Survey Marking Colors
- White: Proposed excavation
- Pink: Temporary survey markings
- Red: Electric power lines and cables
- Yellow: Gas, oil, steam, and petroleum
- Orange: Communications, phone, cable TV, and fiber
- Blue: Potable water
- Green: Sewer and drain lines
- Purple: Reclaimed water, irrigation, and slurry lines
What Do Property Survey Flag Colors Mean?
Surveyors may use different colors to mark survey points, corners, measurements, and site notes. There isn’t one national property survey flag color for every job. If a mark may affect digging, follow the utility color chart and contact 811 before work begins.
What Color Are Property Line Flags?
There isn’t one official color for property line flags. Property corners are usually identified with permanent markers such as an iron pin, capped rebar, or survey monument. Flags make these locations easier to see, but they don’t legally establish a property line. Hire a licensed surveyor if you need to find or confirm an exact boundary.
What Do Red Marking Flags Mean?
Red marking flags usually identify underground electric power lines, cables, conduit, or lighting cables. Treat red markings as a serious warning. Don’t dig until the utility location has been confirmed and all required clearance rules have been followed.
Understanding Marking Flags and Their Uses
What Are Marking Flags?
Marking flags are small, brightly colored vinyl flags attached to wire staffs. Surveyors, utility crews, contractors, landscapers, and homeowners use them to identify underground utilities, boundaries, sprinkler heads, garden layouts, hazards, and other important locations.
Their bright colors make them easy to see from a distance. The wire staff also makes each flag quick to place, move, or remove as a project changes.
Marking Flags, Marker Flags, and Stake Flags
Marking flags may also be called marker flags, stake flags, wire flags, utility flags, lawn flags, or yard marking flags. These names usually describe the same basic product: a visible vinyl flag attached to a wire staff.
The best option depends on the flag size, staff height, pack quantity, color, ground conditions, and required viewing distance.
Common Types of Marking Flags
- Utility marking flags: Identify underground electric, gas, water, communication, and sewer lines.
- Survey flags: Make survey points, corners, grade stakes, and site notes easier to find.
- Construction flags: Mark layouts, work zones, hazards, and areas that require attention.
- Landscape flags: Outline planting beds, irrigation systems, landscape designs, and mowing areas.
- Lawn and garden flags: Mark sprinkler heads, plants, pet boundaries, rows, and planned digging areas.
Why Use Marking Flags?
Marking flags help crews and property owners communicate important information quickly. They can improve organization, make hazards easier to see, protect plants or equipment, and help prevent work from taking place in the wrong area.
Because the flags are temporary, they can be moved as a layout changes and removed when the work is complete.
What Are Temporary Survey Markings Used For?
Temporary survey markings help crews find corners, offsets, grade stakes, reference points, and notes about a site. The flags make these locations easier to see during planning and construction, but they aren’t permanent boundary markers.
How Long Do Marking Flags Last?
Our marking flags are weather-resistant and designed to remain visible for months in wind, rain, and sunlight. Actual lifespan depends on the weather, soil conditions, foot traffic, equipment, mowing, and how securely each flag is placed.
