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Mounting Systems

Wind is what kills
a banner. Not sun.

Large outdoor banners fail because of wind, not UV. A banner that flaps will tear out its own grommets, often within hours, and once one goes the rest follow. The fix is even tension across the whole perimeter. Seed Media supplies two systems: vinyl tension brackets at $37.25 each, spaced every 3 to 4 feet, and custom Invisible Frame kits that hold the banner taut with no visible hardware.
Why corner grommets are not enough at scale. Four grommets concentrate every pound of wind load into four points. On a 3 by 6 foot banner that is fine. On a 30 by 50, which is 1,500 square feet acting as a sail, it is a guarantee of failure. The banner does not tear in the middle. It unzips from a corner.

Vinyl tension brackets

$37.25 each. Our default recommendation, and what most plants use.

Brackets fix to the building every 3 to 4 feet around the perimeter and the banner is tensioned into them. Load spreads across dozens of points instead of four.

Banner sizeBracketsCost
15' x 45'about 36$1,341
25' x 37'about 40$1,490
30' x 50'about 52$1,937
30' x 60'about 56$2,086

Anchoring bolts are not included, because your maintenance team will have preferences based on the wall construction.

Invisible Frame

Custom kits. Best appearance, best wind performance.

A complete engineered frame. The banner mounts into a perimeter frame holding uniform tension with no visible hardware and no rippling. The frame stays up; only the graphic gets swapped.

KitPrice
30'10" x 16'3" custom$8,764
30' x 60' custom kit$17,420

Both are real 2025 invoices. Kits are quoted to your elevation.

Which should I choose?

Choose brackets if this is a standard plant elevation and budget matters. Choose the frame if the banner faces a road or a main gate, if you have had wind failures before, or if you intend to change the graphic every year or two. Then the frame pays for itself, because re-rigging is the expensive part.

Questions

How do I hang a banner on a metal building?

For large building banners, customers typically use our vinyl tension bracket system. Brackets are installed every 3 to 4 feet around the perimeter and connect to gripper bars inside the banner's pole pockets. The banner is then tensioned on all sides for a smooth, taut, professional appearance.

For smaller building banners, our Invisible Frame kit is another great option. It keeps the banner tight while hiding the mounting hardware for a cleaner finished look.

Both systems are reusable, making it easy to update your graphics in the future. Anchoring hardware should be selected by your maintenance team based on the building's wall construction.

What is the difference between vinyl tension brackets and the Invisible Frame?

A vinyl bracket tension system uses individual heavy duty mechanical clips or brackets (like springs or tension rods) around the edges of a banner to stretch and hold the vinyl flat. An invisible frame conceals all mounting hardware behind the graphic perimeter, creating a clean, low-profile, floating appearance with no visible border hardware.

In more detail, tension brackets create a tight smooth surface while the hardware is slightly visible around the edges. It is a cost-effective choice for larger building banners, fast graphic changes and high wind resistance. A standard set up for 20’ x 40’ system will cost approximately $1,600.

The Invisible Frame is a complete engineered frame with no visible hardware, creating a seamless, floating aesthetic with better appearance and wind performance. The banner can be swapped without re-rigging. A 15’ x 30’ can run close to $4,500 for the kit.

Can you reprint an existing banner?

Yes. If you have the original artwork we will reprint it. If not, a good photograph is usually enough to rebuild the design. If you are replacing a banner on existing brackets, tell us the spacing and we will print to fit.

Send a photo of the elevation and we will tell you what we would do.