18x24 Open House #6 – Coldwell Banker Sign Options That Work

What are agents really asking?

What’s the ideal open house sign size?
Should I choose aluminum, PVC, or corrugated?
Do I need stakes or an A-frame?
Are grommets actually useful?

These questions come up often. This quick guide gives straight answers.

Why 18x24 inches remains the standard

18x24 inches gives you maximum visibility with minimal hassle. It’s easy to carry, install, and reuse.
It’s Coldwell Banker’s preferred size because it fits their branding, complies with most city codes, and works with nearly all hardware options.

Material options: what to expect

Your three main choices are:

• 4mil corrugated plastic – the lightest and most affordable; good for short-term use.

• 3mil PVC – a sturdier option; ideal for medium-term use.

• 3mil aluminum – best for long-term, all-weather durability.

If you’re planning to reuse the sign or keep it out longer, PVC or aluminum is the better option.

Hardware picks for every ground type

If you're placing the sign in grass or soft dirt, stakes are a solid choice.

• Econo Stake 10x30 is lightweight and simple.

• Heavy Duty 10x30 adds strength for tougher conditions.
  For concrete, pavement, or indoor use, Wire A-Frames or A-Frames offer sturdy, stand-alone support with no ground penetration needed.

Why grommets can help

Grommets protect the corners of your sign from tearing when tied or hung.
If your sign is mounted in a frame, you likely don’t need them.
But if you plan to hang your sign or place it in windy areas, top, bottom, or top & bottom grommets give extra hold.

Who should be using these signs?

Real estate professionals, leasing agents, FSBO sellers, and property managers all benefit. They help guide walk-ins and drive-bys directly to the right place — no extra directions needed.

Final tips before ordering

Use 18x24 inches to keep it standard and simple.
Pick the material based on how long the sign will stay outside.
Choose the right hardware for your location.
Add grommets if you’re tying or hanging the sign, especially in open areas.