Choosing only by sample appearance
A small sample does not show rolling traffic, soil, glare, acoustics or cleaning burden.
Ignoring the substrate
Renovation budgets that assume perfect concrete are vulnerable to change orders.
Comparing incomplete quotes
A cheaper bid can simply exclude prep, transitions or after-hours logistics.
Forgetting lifecycle
The first installation cost is not the same as the cost of owning and replacing the floor.
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.