Begin with the room
A hardworking kitchen and a quiet guest room ask different things of materials. Consider water, heat, wear, cleaning, and the people who use the space.
See samples in context
Look at physical samples together, in the room, at different times of day. Light changes the appearance of color and texture. A small sample may not show natural variation.
Consider the whole assembly
Ask about preparation, installation, compatible products, maintenance, and written manufacturer requirements. The visible finish is one part of a complete system.
Keep a selection record
Record product names, finishes, quantities, supplier references, and approval dates. Confirm lead times before agreeing the installation sequence.