The 17 Principles of Constructability

These appear to date from the late 1980s or early 1990s as developed by the Construction Industry Institute (CII).  Many of these are timeless, others need an updating.

1. A formal constructability program is made an integral part of the project execution plans.
2. Early project planning activity involves construction knowledge and experience.
3. Construction personnel are involved in developing the project contracting strategy.
4. Project schedules are sensitive to construction requirements.
5. Basic design approaches consider major construction methods such as modularization and preassembly.
6. Site layouts promote efficient construction (e.g., adequate space for laydown and fabrication yards and efficient site access).
7. Project team participants responsible for constructability are identified early in the project.
8. Advanced information technologies such as 3D computer modeling or field notebook computers are applied.
9. Design and procurement schedules are construction sensitive,
10. Designs are configured to enable efficient construction considering issues like simplicity, flexibility, sequencing of installation, and labor skill and availability.
11. Design elements are standardized including maximum use of manufacturers' standards and standardized components.
12. Construction efficiency is considered in specification development including prior review of specs by construction personnel.
13. Modular/preassembly designs are prepared to facilitate fabrication, transportation, and installation.
14. Designs promote construction accessibility of personnel, materials, and equipment.
15. Designs facilitate construction under adverse weather.
16. Design and construction sequencing facilitates system turnover and start-up.
17. Innovative construction methods are used such as innovative sequencing of field tasks, or use of temporary construction systems, or innovative use of construction equipment.