The installer should be thought of as a consultant and a vital team member. For example, when installers are brought to the table at the design phase and give input into connection details, constructibility improves. However, when the installer is brought on too late, other consultants have already spent the money, and no one wants to add to the cost. The resulting problems need to be solved on site by the installer, adding time and cost.
Image c/o: KK Law
Advice
Example of a mainly successful project: Brock Commons — involved a high degree of collaboration: Integrated Design Process — design offered 3-4 options for every connection, which every stakeholder vetted — invested in building a mock-up, where many problems were solved in advance of construction — the design worked with standard panel sizes
Advice
Tolerances are different for each different trade. Mitigate potential problems with communication in the procurement phase.