Using these chairs is a breeze. You can place them indoors in your restaurant or outdoors on your patio. Since they come pre - assembled, you can start using them right away. When it comes to stacking, make sure not to stack more than 5 chairs high to maintain stability. The chairs can hold up to 400 LBS, so don't worry about heavy - weight users. For indoor use, the fixed floor glides will protect your floors from scratches. Cleaning is simple. Just take a damp cloth and wipe the chairs clean. Keep them away from sharp objects to avoid damaging the PE rattan. If you store them outdoors for a long time, it's a good idea to cover them to protect the rattan from excessive sunlight and rain.