Cone Holders Cone Holders – Convenient truck mount, bolt-on design. – Welded steel construction.. – Stack cones for easy storage and quick access. – CH155 holds up to five 18″ or 28″ cones. – CH300 holds up to six 36″ cones. Cone Holders quantity Add to Quote CONSTRUCTION SIGNS LTD. Ready for a quote or have more questions? Contact Us