Yard Signs 8mm

8mm coroplast yard signs — rigid, self-supporting panels for permanent-feeling outdoor signage. Printed full color on heavy corrugated plastic in 18 sizes, with eight grommet patterns, single or double-sided printing and optional H-stakes. Ready in 4 to 5 business days.

• 8mm coroplast — twice the thickness of standard, holds its shape in serious wind
• Long-term outdoor use — site boards, sponsor panels, permanent directional signage
• 18 sizes including large 36" x 48" and 48" x 48" panels
• Eight grommet patterns plus stake-mount option
• Quantity breaks up to 200 signs

Choose your print sides

• Printed 1 sided (4/0) — for panels fixed flat against fencing, hoarding or a wall.
• Printed 2 sided (4/4) — a different message on each face, for two directions of approach.
• Printed 2 sided — same image — identical artwork both faces, for freestanding installation.

Choose your grommet pattern

• No grommets — stake mounting into grass or soil.
• Top 2 corners — hanging installations.
• All 4 corners — the standard for zip-tying to chain-link or site fencing.
• Real estate top only / top and bottom — fits standard hanging frames and rider bars.
• Every 2–3 feet on top and bottom, sides, or all around — essential on large panels: more attachment points spread wind load and stop the sign tearing at a corner.

Where 8mm earns its cost

At 8mm, a large panel stops behaving like a sheet and starts behaving like a board. That is what you need for construction hoarding, sports-field sponsor boards, industrial site signage, and any sign that will stay in place through a full season of weather. It also survives being transported in a truck bed and reinstalled at the next site, which thinner coroplast rarely does more than a few times.

For short campaigns and disposable signage, 4mm or 6mm is the sensible spend. For the stiffest option available, see 10mm coroplast.

Mounting large coroplast panels safely

Wind load rises fast with area. On anything 24" x 48" or larger, use grommets every 2 to 3 feet rather than corners only, and attach with UV-rated zip ties or through-bolts with washers so the fastener does not pull through the plastic. If the panel is going on stakes, use two H-stakes rather than one and push them fully into the flutes so the sign is supported across its width.

Specs at a glance

• Material: 8mm corrugated plastic (coroplast)
• Printing: full color, 1 sided (4/0) or 2 sided (4/4)
• Sizes: 18 options, 6" x 24" through 48" x 48"
• Grommets: 8 patterns, or none for stake mounting
• Quantities: 1 to 200
• Turnaround: 4 to 5 business days after artwork approval

8mm Yard Signs FAQ

Thickness, wind load and mounting answers are below.