Will this be an appropriate unit to spray a medium size shed with Cabot's semi solid stain? Cabot's solid stain?

Cabot's solid stains are usually thick so depending on what tip size Cabot recommends you spray it with it may be too thick for this sprayer. If you would like to call us at 1-800-328-8251 with the stain we can let you know if it will spray it or should you use one of our other sprayers.