The best thickness of laminate flooring depends on several factors such as the level of foot traffic in the area where it will be installed, the subfloor condition, and personal preference. Generally, laminate flooring thickness ranges from about 6mm to 12mm. Here's a breakdown:

• 6mm to 8mm: These are thinner laminate options, suitable for areas with light foot traffic such as bedrooms or closets. They are also more affordable but may lack the durability of thicker options.
  
• 10mm: This thickness strikes a balance between affordability and durability. It's suitable for most residential areas including living rooms, dining rooms, and hallways.
  
• 12mm: The thickest laminate option, providing extra stability and sound absorption. It's ideal for areas with heavy foot traffic or where there might be more moisture, like kitchens or entryways.

Ultimately, it's essential to consider the specific needs of your space and your budget when choosing the thickness of laminate flooring. Thicker options tend to offer better durability and sound insulation, while thinner ones might be more budget-friendly.