Logical boundaries
Doors, corridors, departments and tenant areas can create natural phase limits.
Temporary transitions
Each phase may need temporary edge protection or access arrangements.
Material consistency
Large projects should plan batch/color consistency and retained stock across phases.
Schedule risk
A delay in one phase can affect furniture moves, tenant operations and follow-on trades.
Commercial flooring decisions depend on the actual substrate, moisture conditions, traffic, cleaning regime, accessibility requirements, fire/building rules, manufacturer instructions and local code. This site is for planning and comparison, not installation instructions.