Construction workers perform manual tasks that are part of building, installation, demolition, and other construction projects. Although their daily responsibilities vary based on the project, tasks may include preparing construction sites, loading and unloading equipment or materials, removing debris, installing fixtures, assembling and disassembling temporary structures at the job site, handling hazardous materials, and assisting contractors and heavy machinery operators. They must follow all health and safety regulations to ensure projects are completed successfully. Construction workers typically work contract jobs and flexible hours.