Start with the basics: apparent density, water absorption, and abrasion resistance. Dense marbles with low absorption perform more predictably under foot traffic and routine cleaning. Confirm thickness and tolerances; 2 cm works for most interiors, while 3 cm adds stability for stairs and reception desks.
Finish selection changes performance. Polished looks luxurious but needs careful maintenance; honed balances aesthetics and practicality; leathered/brushed improve traction and visual softness. For corridors and lobbies, combine the right finish with a quality impregnating sealer.
Execution is everything. Request current-lot photos and agree on vein-matching before cutting. Specify edge details, expansion joints, and a neutral-pH maintenance plan. With these steps, marble floors remain crisp and elegant for years.