Patented Technology

Signs made
for your T-post.

You already have the T-posts. Whack-A-Sign's patented bracket slides over the top and locks on — no drilling, zip ties, or brackets to buy. Fits standard 1.25 and 1.33 lb/ft posts.

Free shipping · Allen wrench & screws included with every sign.

Standard metal T-post Whack-A-Sign No Trespassing sign sliding onto a T-post
Why Whack-A-Sign

T-Post Signs, done right.

Fits any standard T-post

Designed for the 1.25 and 1.33 lb/ft metal T-posts already on fence lines across the country.

Patented slide-on bracket

Slides over the top of the post and grips it — no drilling, no zip ties, nothing to spin loose.

Everything's in the box

Each sign ships with an Allen wrench and two screws. No trip to the hardware store.

Won't spin or blow off

Locks to the post so wind, weather, and time can't knock it loose.

The Technology

Every sign knows
whose land it is.

Molded into every Whack-A-Sign is a unique QR code. Scan it and the sign becomes a live page you control — owner, contact, permits, lease info, whatever you want the world to know. Edit it any time. The QR never changes.

Scan this Whack-A-Sign QR code to open a live sign page

SCAN ME

CODE · K7G2QM

Go ahead — scan it with your phone to see a live sign page in action.

1

Scan the code

Any phone camera opens the sign's page. No app to download, ever.

2

Claim it

Sign in with a one-time email link — no password — and the sign is yours.

3

Post your info

Add owner, contact, permits, lease and gate details — whatever you want shown.

4

It goes live

Pay once and anyone who scans sees it. Edit any time; the QR never changes.

What you can post

  • Owner & contact info
  • Permits & lease details
  • Mineral rights & acreage
  • Gate codes & caretaker numbers
  • Wildlife & land management plans
  • Property rules, notices & emergency contacts

Built into the tech

  • No app — opens in any browser
  • One-tap email sign-in, no password
  • Edit any time, free — the QR never changes
  • Your location stays private unless you show it
  • Run unlimited signs from one dashboard
  • Pay once to publish — no subscription

Built for everyone who owns the dirt

Landowners & ranchers Hunting leases Oil & gas Wildlife management Cabins & recreation Realtors & vacant lots
Activate your sign → See how it works One-time activation from $9.99 · no subscription
Buy Signs

Pick your color.
Pick your pack.

Free shipping, with the Allen wrench & screws included on every sign. The more you post, the less each one costs.

Single Sign

$14.99

$14.99 per sign

Add to cart →

Box of 64

$895.36

$13.99 per sign · best value

Add to cart →

Secure checkout on Shopify · Free shipping · Need 100+ or custom branding? Request a bulk quote →

Questions

Straight answers.

What size T-post does it fit?+
Any standard metal T-post — the common 1.25 lb/ft and 1.33 lb/ft posts used for fencing across the U.S.
How does it attach without drilling?+
The patented bracket slides over the top of the post and locks in place with two included screws. No holes, no extra hardware.
What's included with each sign?+
The sign, an Allen wrench, and two mounting screws — everything you need for a 2-minute install.
Is the design really patented?+
Yes. The slide-on T-post bracket is protected by a U.S. patent.
Ready?

The sign your
T-post was waiting for.

Slide-on signs, a QR that tells your story, and free shipping. One-time cost, no subscription.

Whack-A-Sign No Trespassing sign