A SmartSign Store

(800) 952-1457 Mon - Fri 8:00am to 7:00pm EST
Free Shipping* For US orders of $49.95 and more
Account
0 Total $0.00

Home
Custom
- - Custom Dog Poop Signs
Funny Signs
- - Funny Dog Poop Signs
Curb Dog
- - Curb Your Dog Signs
No Dog Poop
- - No Dog Poop Signs
  - No Dog Pee Signs
Clean Up Dog Poop
Dog Park Rules
Designer Signs

Search

No Result Found!

RECENT SEARCHES

Recently Viewed

Loading...

DogPoopSigns >
Custom Road Traffic Signs
> By Shape
> 18" x 18" Diamond Signs
> K-3421-YB

Custom Sign, 18" x 18": Customizable Diamond Yellow & Black Sign Template K-3421-YB

Custom Yellow Black Diamond Template Parking Sign

Custom Yellow Black Diamond Template Parking Sign

Ships Monday.

Order within 00 hrs 00 mins

*If a proof is required, ship dates are subject to customer approval of a proof.

Part#

K-3421-YB

SPN#

1G6A

Colors

Black,Yellow

Shape

Diamond

Product Description

Create your own personalized sign. It's easy to add your own text.

Specify your sign in a variety of materials, including heavy-duty aluminum.
Most custom signs are shipped in a day or two of your order.

0 Select Design:

Custom Yellow Black Diamond Template Parking Sign

Big Caution Sign

Caution Gate Ahead Warning Sign

CAUTION DRIVE SLOWLY Aluminum Parking Sign

Caution Watch Children, Joggers, Bicyclists, Pedestrians Crossing Sign

Caution: Yield to Pedestrians Safety Sign

Men Working Ahead Sign

Caution Student Crosswalk Sign

Dip Ahead Caution Sign

Watch For Rocks Sign

Rock Slide Area Sign

Icy Roads Car 32°F Thermometer Symbol Sign

Slippery When Wet (Symbol) - Road Warning Sign

Warning Icy Sign

Bridge Ices Before Road - Traffic Sign

Watch For Ice On Bridges Sign

Slippery When Wet Or Icy Sign

Caution - Flashing Lights Indicate Icy Conditions Sign

Custom Black Diamond Template Parking Sign

Custom Blue Diamond Template Parking Sign

Custom Brown Diamond Template Parking Sign

Custom Green Diamond Template Parking Sign

Custom Red Diamond Template Parking Sign

Blind Child Area Sign

Blind Person Area Crossing Sign

0 Select Size:

0 Select Material:

Quantity / Price (Per Sign)

18" x 18"

1
Reflective Aluminum Signs
3M Engineer Grade Reflective Alum.

$56.96
3M Hi Intensity Reflective Aluminum

$63.98
Reflective Aluminum Signs - Premium
3M DiamondGrd. Fluoresc'nt Yellow

$91.85
3M DiamondGrd. Fluorescent Yellow Green

$91.85
Rigid Signs
Aluminum

$55.90

View all quantity based discounts

Price List

Loading...

3M Engineer Grade Reflective Alum.

Configuration:

(click to zoom)

Die d18

Die d18

Die d18

Die d18

Die d18

12+ year life expectancy

This is one of our best selling products.

Great water and chemical resistance

168ºF

Mounts with screws or clips.

Jul 20

(Hover for more details)

Loading....

1:19
80 mil thick aluminum with fluorescent diamond grade reflectivity.
3M's brightest sign material.
3M matched component inks and films.

More Material Details

12+ year life expectancy

This is one of our best selling products.

Great water and chemical resistance

168ºF

Mounts with screws or clips.

Jul 20

(Hover for more details)

1:19
Extra thick, heavy-duty 80 mil aluminum with Fluorescent Yellow Diamond Grade reflectivity.
3M's brightest and most conspicuous sign material.
3x as reflective as High-Intensity Grade signs.
12+ year durability, Diamond Grade signs are manufactured with premium 3M inks and reflective materials designed for municipal outdoor traffic or parking signs.
Comes with rounded corners and prepunched holes - for easy handling and installation.

More Material Details

7+ year life expectancy

This is one of our good selling products.

Great water and chemical resistance

168ºF

Mounts with screws or clips.

Jul 20

(Hover for more details)

2:33
Extra thick, heavy-duty 80 mil rustproof aluminum.
Standard Engineer Grade reflective.
10 year durability backed by a 3M warranty.
Rounded corners - for easy handling and a professional appearance.
Signs have prepunched holes to insure a hassle-free installation.

More Material Details

10+ year life expectancy

This is one of our better selling products.

Great water and chemical resistance

168ºF

Mounts with screws or clips.

Jul 20

(Hover for more details)

2:39
Extra thick, heavy-duty 80 mil aluminum and 3M High-Intensity Grade film.
3x as reflective as Engineer Grade.
10+ year durability backed by a 3M warranty.
Rounded corners - for easy handling and a professional appearance.
Signs have prepunched holes to insure a hassle-free installation.

More Material Details

7+ year life expectancy

Great water and chemical resistance

168ºF

Mounts with screws or clips.

Jul 20

(Hover for more details)

2:18
Heavy-duty 80 mil rustproof aluminum.
3M authorized manufacturer. Printed with 3M inks and materials.
For use indoors or outdoors.
Rounded corners - for easy handling and a professional appearance.
Includes large holes for easy mounting.

More Material Details

0 Order Quantity:

Buy quantity and save

Buy 2+
1% OFF
$56.46/Sign
Buy 3+
12% OFF
$50.37/Sign
Buy 4+
15% OFF
$48.36/Sign
Buy 5+
16% OFF
$47.86/Sign

Buy 2+
6% OFF
$60.46/Sign
Buy 3+
9% OFF
$57.96/Sign
Buy 4+
12% OFF
$56.26/Sign
Buy 5+
13% OFF
$55.76/Sign

Buy 2+
1% OFF
$90.56/Sign
Buy 3+
7% OFF
$85.86/Sign
Buy 4+
9% OFF
$83.86/Sign
Buy 5+
9% OFF
$83.36/Sign

Buy 2+
1% OFF
$90.56/Sign
Buy 3+
7% OFF
$85.86/Sign
Buy 4+
9% OFF
$83.86/Sign
Buy 5+
9% OFF
$83.36/Sign

Buy 2+
4% OFF
$53.86/Sign
Buy 3+
12% OFF
$48.98/Sign
Buy 4+
16% OFF
$46.96/Sign
Buy 5+
17% OFF
$46.46/Sign

Size: 18" x 18"

Material: 3M Engineer Grade Reflective Alum.

Package:

1 Sign/Sign

Save $0.00

$56.96 ( $56.96 / Sign )

Free Delivery Over $49.95
Guaranteed Best Pricing
3-Year Warranty

Have Questions?

Contact our customer service

(800) 952-1457 Mon - Fri 8:00am to 7:00pm EST

Real Customers

Real Customers

2,327 reviews

Reseller Ratings

Reseller Ratings

1,264 reviews

Customer Reviews

5.0

Based on 18 ratings

5 Star 18
See all reviews
User Rating
Rate It

Have you purchased this item?
Write A Review

Write A Review

Your Rating:

Title:

Review:

Name:

Courtney Jul 16, 2024

Size: 18" x 18" Material Type: Heavy-Duty Aluminum Sign, 80 mil Verified Purchase

Doesn’t get much better

Easy to order, quickly delivered and absolutely perfect!

MARC Mar 05, 2024

Size: 18" x 18" Material Type: Engineer Grade Reflective Aluminum Sign, 80 mil Verified Purchase

Super awesome signs and super fast delivery

I cannot believe how fast i got these amazing signs... they are perfect and look legit...

Sean Dec 14, 2023

Size: 18" x 18" Material Type: Engineer Grade Reflective Aluminum Sign, 80 mil Verified Purchase

Far out

Custom sign, shipped a day after it was ordered. Delivered quickly and perfect to the design I chose.

John Sep 06, 2023

Size: 18" x 18" Material Type: Fluorescent Yellow Green Diamond Grade Reflective Aluminum Sign Verified Purchase

Perfect Signage, you get what you pay for !

Excellent quality exactly what I wanted, heavy duty aluminum with a highly reflective foreground. Heavy plastic with a fiber webbing.

john Jul 12, 2022

Size: 18" x 18" Material Type: Fluorescent Yellow Green Diamond Grade Reflective Aluminum Sign Verified Purchase

Nice Sigh

Sign was exactly as described. Arrived on time. Has already helped reduce nuisance traffic.

See all reviews

Categories

Custom
Funny Signs
Curb Dog
No Dog Poop
Clean Up Dog Poop
Dog Park Rules
Designer Signs

Support

Contact Us
Terms
Privacy
About Us
Reviews
Products
Free Sign PDF's
Videos
Accessibility
CA Privacy Rights
W9 Form

BBB Rating

© 2026, DogPoopSigns.com

Review 4.8 stars from 3,591 reviews.

Loading...

Accessibility Menu