ACE Supply is a trusted source for professional-grade marking products used by construction crews, utility contractors, surveyors, landscapers, and event teams across the U.S. From durable marking flags and flagging tape to masonry string line, marking whiskers, and underground detectable tape, our catalog is built for visibility, reliability, and job-site safety.

What We Do

We make it easy to outfit your team with the right tools for marking, locating, and communicating on site. Our products are designed to be high-visibility, weather-resistant, and long-lasting—so they hold up to sun, wind, rain, and rough handling.

Core collections:

• Marking Flags — glued (not wrapped) to stay put, available in bright, high-contrast colors for clear communication.
  
• Flagging Tape — full color range aligned with industry color coding, with options for long runs and quick visual recognition.
  
• Mason String Line — strong, consistent line for layout and measurement.
  
• Marking Whiskers — durable, low-profile markers that stand up to repeated traffic.
  
• Underground Detectable Tape — clearly labeled tracer tapes to identify buried utilities such as water, gas, electric, and fiber.
  

Who We Serve

• Utilities & Municipalities marking buried lines and proposed excavations
  
• Construction & Concrete crews establishing boundaries, hazards, and work zones
  
• Surveying & Engineering teams creating precise, temporary references
  
• Landscaping & Forestry operations managing property lines and protected areas
  
• Events & Recreation teams routing foot traffic and marking courses
  

Why ACE Supply

• Built for the Field: Products selected and tested for real-world durability and clarity.
  
• Color You Can Trust: Guidance aligned with the widely used APWA color standards to help teams stay consistent and safe.
  
• Fast, Straightforward Ordering: In-stock items, clear product pages, and simple checkout.
  
• Thousands of Orders Fulfilled: A growing base of contractors and DIY customers who rely on ACE every week.
  

Our Home

We’re proudly based in Grimes, Iowa, supporting customers nationwide with responsive service and fast shipping from the heart of the Midwest.

Safety & Standards

Clear markings prevent costly mistakes. We help teams implement recognizable colors and messages—such as red for electric, yellow for gas, blue for potable water, and more—so everyone on site can read the ground at a glance. (Always verify local requirements and project plans.)

First-Time Customer Savings

If you’re new here, welcome—first-time customers receive 10% off their first order at checkout. No code required.

Let’s Work Together

Whether you’re outfitting a municipal crew, gearing up for a big project, or replenishing inventory, we’re here to help you choose the right marking products for the job.

Shop our collections or contact us to get started today.