4-H Poster Rules
All 4-H poster exhibits (unless otherwise specified in project manual) must be 22” x 28” in size, displayed
horizontally, and backed with a solid 22” x 28” foamcore backing.
• Plywood, masonite, or similar materials MAY NOT be used for poster backing (unless otherwise specified in
project manual—i.e., small engines).
• Poster must be displayed horizontally. Vertical posters will be dropped one place.
All poster exhibits may be made on any color of poster board or suitable material (i.e., fabric, wrapping paper,
etc.), and then be securely attached and mounted on the foamcore backing.
It is best to use rubber cement to attach the poster board to the foamcore backing, as then the
foamcore backing can usually be used again.
Attaching the poster board or other material to the foamcore backing BEFORE you put anything
else (pictures, labels, etc.) on the poster works best. If you do this, make sure you let it dry for a
couple of days or the cement will retain moisture and ruin the poster.
The foamcore backing itself can be used as the poster.
The Extension Office has the correct size of foamcore backing, available for $2.25 each.
All poster exhibits should be covered with a clear plastic, acetate, or transparent covering to protect your
exhibit and make it more attractive.
Plastic sleeves available from the Extension Office
Heat shrink plastic available at craft, hardware, and discount stores. Lay a sheet of plastic
(approximately 28” x 34”) on a hard surface. Place your poster (including foamcore backing)
facedown and tape the plastic to the backside of the exhibit). The final thickness should be
about ¼ to ½ inch.
Do NOT use Saran Wrap!
The Extension Office has plastic sleeves, available for $1.00 each. The sleeves are the correct size to fit
your poster board and seal at the one end.
Every poster (except Minis) must have Velcro dots secured to the back of the poster.
Use at least 8 circles per poster, placing dots in from the edge of the exhibit (outside the plastic
sleeve) about 8 inches.
Have the dots attached BEFORE bringing the exhibit to the fair. It takes about 12 hours to cure.
The Extension Office has Velcro dots available for $0.25.
Each poster must have a label. The label should be placed in the lower right-hand corner of your poster.
This is the information that is required (unless instructed differently in the project manual).
Name; County; 4-H Club; Project; Division
Way