Buy Imperial Street Stop Sign — Estate Series
Product Specifications
Here's what the Imperial Estate Series includes:
- Sign Shape: Standard octagonal STOP sign face
- Available Sizes: 18-inch, 24-inch, and 30-inch diameter options
- Reflectivity: Type I (Engineering Grade), Type III (High Intensity), and Type IV (Diamond Grade) available
- Substrate: Heavy-gauge aluminum sign blank, rust-free and corrosion-resistant
- Backplate: Coordinated aluminum backplate available to enhance sign visibility and reinforce the decorative profile
- Post: Extruded aluminum pole meeting ASTM standards, available in multiple heights
- Finish: Premium powder-coated enamel baked on for UV and moisture resistance
- Base Options: Decorative flange base or in-ground direct burial
- Finial: Ornamental cap options included for a finished, intentional appearance
Reflectivity Comparison: Which Grade Do You Need?
Reflectivity grade determines how visible your sign is to drivers at night and in low-light conditions. Choose based on your specific traffic environment.
| Grade |
Type |
Best For |
Recommended Use |
| Engineering Grade |
Type I |
Low-speed, low-traffic zones |
Parking lots, private driveways |
| High Intensity |
Type III |
Moderate traffic, residential roads |
Residential streets, HOA communities |
| Diamond Grade |
Type IV |
High-speed or high-risk locations |
Hazardous intersections, arterial roads |
The Imperial Estate Series ships standard with a High Intensity (Type III) street sign face.
How to Build Your Sign System
Configuring the Imperial Estate system takes five decisions. Work through them in order and you'll have a compatible, complete setup before checkout.
- Choose component color. Black is the standard HOA and campus choice. It holds up against UV fading better than lighter powder coats and coordinates cleanly with most architectural palettes.
- Choose your traffic sign and blade combo. Pair your STOP face with a street name blade. The style of the blade frame influences the overall look of the sign and how the name panel is attached. Flat blades suit minimalist installs; framed blades add structure.
- Select pole height. Measure from finished grade to the bottom of the sign face. MUTCD recommends a minimum 7-foot clearance at pedestrian locations and 14 feet at vehicle crossings. Subtract the depth going into the ground from the total pole length to find the height above ground.
- Pick frame size and blade frame style. Frame size determines how many street name blades you can mount. Blade frame style, open or closed, changes the visual weight of the assembly. Open frames read lighter; closed frames look more formal.
- Choose finial and base. The finial caps the top of the pole and signals a planned installation rather than a utility setup. The base choice affects durability: a decorative flange base works well on poured concrete pads, while direct burial suits softer ground installs.
Compliance Notes: DOT and MUTCD
The Imperial Estate Series sign face meets MUTCD (Manual on Uniform Traffic Control Devices) design standards for stop sign geometry, color, and lettering. The aluminum substrate and reflective sheeting conform to federal specifications for traffic control devices on roadways open to public travel.
Installing on a public road requires local approval regardless of sign quality. Contact your municipality or transportation department before installation. The rules may be less strict for HOAs and campuses, but using MUTCD guidelines is still the safest and most responsible choice.
Typical approved use cases include municipalities, HOA entrance roads, private community streets, campus intersections, commercial parking lot entrances, and gated developments.
Installation Overview
Here's what a standard Imperial Estate pole installation involves:
- Tools and materials: The basic tools include a post hole digger or auger, quick set concrete, a level, a tape measure, and the included mounting hardware.
- Dig: Dig to a depth appropriate for your soil type and pole height. A general rule is to bury one-third of the total pole length.
- Set post: Place the pole in the hole and plumb it with a level on two perpendicular faces.
- Pour and cure: Pour quick-set concrete around the base. Allow full cure time before proceeding. Rushing this step compromises long-term plumb.
- Mount sign: Attach the sign face and blade assembly using the provided hardware. Confirm all fasteners are tight before leaving the site.
On sloped ground, measure your above-grade pole height from the high side of the grade. Follow local codes for setback distance from the road edge and use appropriate safety precautions during all ground work.
Why Choose the Imperial Estate Sign?
The Estate Series isn't assembled from mismatched components. Imperial designs the sign face, post, base, and finial as a matched system: same finish batch, same tolerances, same design language. The decorative base and ornamental finial give HOAs and community developments a finished, intentional look at the curb rather than the utilitarian appearance of a standard utility install. You don't spend time hunting compatible hardware or second-guessing whether the post gauge matches the mounting bracket.
The extruded aluminum pole meets ASTM structural standards, which matters for wind load performance in exposed locations. The powder-coated enamel finish is electrostatically applied and oven-cured. It bonds to the metal rather than sitting on top of it. Property managers and HOAs like this system because it keeps the community looking sharp and well cared for over time.
Frequently Asked Questions
What reflectivity do I need for night visibility?
It depends on your traffic environment. Here's a quick guide:
- Parking lots and low-speed private drives: Type I Engineering Grade is sufficient
- Residential streets and HOA roads: Type III High Intensity is the right baseline
- Hazardous or high-speed intersections: Type IV Diamond Grade delivers the highest nighttime visibility
Is this approved for public road use?
The sign face meets MUTCD design standards. Installation on a public road still requires approval from your local transportation authority or municipality. For private roads, HOAs, campuses, and parking areas, no public-road approval is needed, but using MUTCD-compliant signs is recommended for driver recognition and liability protection.
Does the package include custom street name text?
Street name blades come included with the system setup. Custom text is specified at the time of order. Confirm your street name, lettering size, and reflectivity grade when building your sign combo in step two of the configuration process.
What STOP sign size should I choose for a street vs. a private road?
Sign size should match your road type and speed environment. Here's how to decide:
- 18-inch: Suited for low-speed parking areas and pedestrian-priority zones
- 24-inch: Standard for residential streets and HOA roads, the most common choice
- 30-inch: Required on higher-speed roads and recommended wherever MUTCD compliance with arterial standards is needed
Additional Info
Traffic and Street Sign Package Estate Series - Stop Sign
- All Sign Systems utilize an extruded
aluminum pole meeting ASTM
Standards. Century Poles are
Schedule 80, Imperial Poles are
Schedule 10, Estate Poles have a
wall thickness of .109"
- All Systems Designed for Direct
Ground Burial
- All Street Signs Are Finished
Using A Premium Enamel Paint
Ensuring Continuity Of Service.
- D.O.T. Standard, Custom Sign
Faces & Street Name Signs
Available.
This product listing includes all of the following:
- Post (14' 6")
- Base & Finial Type 8 Shown (You may substitute from
list below )
- US DOT Approved Traffic Sign Backplate
- US DOT Approved Traffic High Intensity Street Sign
- Street Sign Arms (select type in the option section)
- Street Sign Insert with Reflective Letters and bolt-on
frame
- NOTE: Cast
Aluminum Blade Street Sign Systems, please see Items
IMP-E1-6b6 (with accompanying Traffic Signs) and IMP-E1-7b7 (with
accompanying Traffic Signs).
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