Using your new stackable chair is a breeze. Just pull it out from the stack and place it where you need it. Since it's fully assembled, you don't have to worry about putting it together. For stacking, make sure the chairs are aligned properly and stack them up to 25 units safely. When using, keep in mind that it has a 661 lb. weight capacity, so don't exceed this limit. For maintenance, wipe the plastic parts with a damp cloth regularly. If there are any stains on the frame, you can use a mild soap solution. Avoid using abrasive cleaners as they may damage the powder - coated finish. Store the chairs in a dry place to prevent rusting of the metal parts. Also, check the plastic ganging floor glides from time to time. If they're worn out, replace them to ensure the chair's stability.