Carpenters cut, fit, and join wood, metal, concrete, plastics, and composites of multiple materials. They construct, erect, install and repair structures and fixtures, and are employed in the residential, commercial and industrial sectors of the construction industry. Depending on the type of work and the employer, carpenters may specialize in one or two activities or may be required to know how to perform many different tasks. Each task is somewhat different, but generally involves the same basic steps. Working from blueprints, carpenters first do a layout – measuring, marking, and arranging materials, in accordance with local building codes. Using a variety of hand/power tools such as chisels, planes, saws, drills, and sanders, carpenters cut and shape the materials, then join them with nails, screws, staples or adhesives. Finally, they check the accuracy of their work with levels, rules, plumb bobs, framing squares, or electronic versions of these tools, and make necessary adjustments. Carpenters work closely with other construction craft professionals, and together, build the infrastructure to make our community a better place to live. Carpentry is challenging and satisfying work. No two days are ever the same, and the job site changes every day as well. It can be physically challenging, requiring prolonged standing, lifting, climbing, bending and kneeling. Many carpenters work indoors, but for those working outdoors the weather conditions may be variable.