Portable Fillable Sign Base

RubberForm's Portable Fillable Bases are a practical and customizable solution for a wide range of applications. Made from the same original mold of our Portable Sign Bases, these bases can be filled with water or sand to provide stability. The modular design allows for easy temporary and permanent installations. The bases are compatible with 4-to-6-foot posts and can be customized with a variety of colors. RubberForm's Portable Fillable Bases are the solution to meet all industry standards.


  • 23” Diameter
  • 18” Height, Conical shape
  • Fill with water, sand, or gravel for maximum stability
  • Hard Durable Rotomolded Recycled Plastic – will not chip, crack, or crumble
  • Easy to move – just tip and roll, pull, or push to destination
    • Recessed wheel design beautifully blends in with the bottom of the base
  • Available in 6 colors:
    • black, yellow, blue, red, terra cotta, & green
    • Custom colors available by request
  • Supports our 2-3/8″ round 4-foot, 5-foot, and 6-foot plastic sign post with safety yellow cap
  • Innovated, designed, and manufactured by RubberForm in the United States