Construction is a cyclical industry it means it reflects fluctuation in national economy sensitively and rapidly.

Construction has a very large number of self-employed workers. Opportunities for workers to form their own firms are better in construction than in many other industries.

Construction industry has different groups these were

1. The design group: includes people who have a basic interest in conceiving, programming, synthesizing, & planning & physical environment.

2. The constructor group: those in the constructor group are people of action.

3. The support group: the motivation and interest those in the support group are as varied as the list of professions would indicate.

The construction sector comprises establishments primarily engaged in the construction of buildings or engineering projects (e.g., highways and utility systems). Establishments primarily engaged in the preparation of sites for new construction and establishments primarily engaged in subdividing land for sale as building sites also are included in this sector. Construction work done may include new work, additions, alterations, or maintenance and repairs. Activities of these establishments generally are managed at a fixed place of business, but they usually perform construction activities at multiple project sites.