3. Factor in contingencies

I have never experienced a new construction project where the network requirements did not change from the initial design meeting. Usually the requirements increase, with an associated cost increase. Therefore cost contingencies as a percentage of the estimate should be added to every estimate provided.

Often during the planning process, new estimates are required as the design of the new facility evolves. This process may involve an initial phase where the architect gathers information for designing the facility, a design review phase, and a construction document review phase just prior to bid. The cost contingency should decrease at each phase (say, 15 percent, 10 percent, 5 percent) but should still be included.

Contingencies are not limited to cost. Contingency planning is also necessary when estimating network equipment and cabling capacity. Make sure you have extra Ethernet ports and fiber circuits available.

4. Invoke an RCDD