Abstract: A caddy apparatus designed to hold paint, construction items, supplies, tools and other materials while on an extension ladder without interfering with the safety of the person standing on the ladder is herein disclosed. The apparatus uses a dimensioned dowel rod which is selectably placed through the hollow cavity of the ladder rungs and extends through to either side where it is used to support the apparatus. The apparatus comprises a “U”-shaped bracket, which is supported on the dowel rod in any one of three closely-spaced hanging tubes. The base of the bracket provides a large flat tray for use in holding materials while working on the extension ladder. The use of said caddy allows workers on extension ladders quick access to tools, supplies and materials in an efficient and safe manner.