When to Order Finished Traffic Signs vs. Making Them In-House

If you're doing regular traffic sign work, you've probably run the numbers at least once: is it actually cheaper to sheet and trim your own blanks, or order them finished?

The material cost looks lower on paper when you do it yourself. Once you add crew time for sheeting, trimming, staging, and inventory management, the math often shifts. That's before a DOT compliance requirement or a warranty documentation step gets added to the job.

Most sign shops doing consistent traffic work settle into a rhythm: some jobs stay in-house, others get handed off to a manufacturer. Knowing which is which is where the real efficiency comes from. Grimco's Manufactured Products Division covers both options: finished MUTCD signs, pre-sheeted reflective blanks, and raw aluminum for shops doing their own finishing.

 

What Grimco's MPD Produces

Grimco manufactures finished traffic signs and pre-sheeted aluminum blanks through its Manufactured Products Division using 3M MCS-certified equipment, screen print inks, and High Intensity Prismatic reflective sheeting. Signs produced through Grimco's MPD carry up to a 10-year 3M warranty when built to spec with 3M's 1170 overlaminate.

 

Products Available to Order

  • Finished MUTCD signs that arrive ready to post, with no in-house sheeting or trimming required
  • Pre-sheeted .080 HIP blanks for jobs where your shop handles lettering and installation
  • Bare aluminum for shops doing their own reflective application
  • Custom and non-catalog signs quoted to spec for municipal or DOT jobs with unique requirements

Wholesale Only, Trade Customers Only

Grimco sells to sign shops, fabricators, and contractors only, not to end users. To be a Grimco customer, you need sign-making equipment. That means your municipal client can't bypass you and order direct. Grimco's business is built around yours.

MPD_Signs-Blanks_750x250

 

The Make-vs-Buy Decision for Traffic Sign Jobs

The jobs where ordering finished makes the most sense tend to share the same traits: standard MUTCD shapes, tight turnarounds, and high enough volume that your crew's time has a real cost attached. Sheeting a stop sign octagon in-house isn't adding value. It's using hours that could be spent on installations, custom fabrication, or work that actually bills at a higher rate.

 

Where Pre-Sheeted Blanks Save the Most Time

Sheeting and trimming eat up production time that doesn't show up on the job estimate. For standard regulatory and warning signs in shapes and sizes Grimco stocks in quantity, ordering pre-sheeted blanks cuts that step entirely. Your crew picks up at lettering and installation, the part of the job where their time bills out.

For shops handling DOT-deadline projects, the scheduling benefit is just as real. When materials arrive finished, you're not dependent on your sheeting station being free when the job needs to move.

Sign shop crew time saved by ordering pre-sheeted reflective blanks instead of sheeting in-house

 

3M-Approved Sign Manufacturing

Grimco is recognized as the largest 3M-approved manufacturer and distributor of traffic signs in North America. That approval covers the full production process: 3M MCS-certified equipment, screen print inks, High Intensity Prismatic sheeting, and 3M 1170 overlaminate. That combination is what's required for DOT compliance and 3M warranty coverage on finished signs.

For shops bidding jobs where the client requires documented compliance, ordering finished signs from Grimco's MPD means the certification is already part of the product. Whether Grimco is screen printing or digitally printing using wide-format equipment, the process meets DOT standards from the substrate up.

Grimco MPD 3M-approved manufacturing for DOT-compliant traffic signs using MCS-certified equipment

 

See the Facilities

 

 

Ordering Custom and MUTCD-Compliant Signs

For regulated signage, MUTCD traffic control signs, DOT-spec regulatory signs, or custom shapes for a specific project, Grimco's MPD can produce to specification. Non-catalog orders are handled through a quote process. If you're bidding a municipal wayfinding project or a DOT job with unique specs, that's the path to use.

Request a Quote for Custom or MUTCD Signs

Custom and MUTCD-compliant traffic signs manufactured by Grimco MPD for sign shops and DOT contractors

 

Availability and Shipping

Traffic signs and aluminum blanks ship from local warehouses nationwide, with next-day availability on standard shapes, sizes, and reflective grades. For shops running tight schedules on municipal or DOT projects, that predictability matters as much as the unit cost.

Your crew can redirect the time saved toward:

  • Installations and field work that bill at a higher rate than shop production
  • Custom fabrication jobs that actually require your sheeting station
  • Sales and estimating on the next municipal or DOT bid

Hours and cost savings per traffic sign project when ordering finished signs from Grimco MPD vs. in-house production

 

FAQs

 

What are pre-sheeted sign blanks, and why do sign shops use them?

 Pre-sheeted sign blanks are aluminum substrates with reflective sheeting already applied, which eliminates the in-house labor for sheeting and trimming before lettering and installation. For standard MUTCD shapes on high-volume or deadline-driven jobs, they remove a production step that doesn't add billable value for the shop.

When does it make sense for a sign shop to order finished traffic signs instead of making them in-house?

 Ordering finished traffic signs makes the most sense for standard MUTCD shapes on tight turnarounds, when crew time has a higher-value use elsewhere, or when a project requires documented DOT compliance and warranty coverage from the manufacturer. In-house production tends to make more sense for custom dimensions, non-standard reflective grades, or jobs where the shop controls the full production workflow. 

Where can a sign shop buy DOT-compliant reflective sign blanks from a manufacturer?

 Grimco manufactures DOT-compliant reflective sign blanks through its Manufactured Products Division using 3M MCS-certified materials, including High Intensity Prismatic sheeting and 3M 1170 overlaminate. Standard MUTCD shapes and sizes ship wholesale to sign shops and fabricators from U.S. warehouses with next-day availability. 

What makes a finished traffic sign eligible for a 3M warranty?

 A finished traffic sign qualifies for a 3M warranty when it is produced using 3M-approved materials, inks, printers, and protective laminates, specifically 3M's 1170 overlaminate. Grimco's MPD produces signs under the 3M Matched Component System, which is the certification framework that backs the warranty. 

Does Grimco compete with sign shops?

 Grimco does not compete with sign shops. It sells wholesale only to trade customers with sign-making equipment, which means your end clients cannot buy from Grimco directly. Grimco's MPD operates as a production partner: your shop fulfills the job, Grimco handles the manufacturing behind it. 

 

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