Do not exceed this limit. ► Always use caution and care when working with heavy projectors. DO NOT TAKE UNNECESSARY RISKS! ► Once you have chosen a location for the mount, determine the construction of the ceiling. • Solid wood surface: a beam, or a wood joist inside the wallboard. • Wallboard: sheet rock, plasterboard or paneling. • Masonry: plaster, cement or brick. ► It is recommended that the ceiling mount be mounted to a ceiling beam or wood joist. ► CAUTION: Use only the supplied T