There are four main types of patio chairs based on their height. These are lounge chairs, dining-height chairs, counter-height chairs and bar-height chairs.
Lounge Patio Chair
A lounge patio chair sits closest to the ground and is used for sunbathing or reading. You can purchase an accent table to coordinate with a lounge chair, but there is no standard height for either the chair or the table.
Dining Height Patio Chair
The seat of a patio dining-height chair measures approximately 18 inches high and coordinates with a regular height dining table measuring 28 to 30 inches high.
Counter Height Patio Chair
The seat of a counter-height chair measures around 24 to 26 inches high and coordinates with a counter or counter-height table measuring 36 inches high.
Bar Height Patio Chair
The seat of a bar-height chair measures around 30 to 31 inches high and is coordinates with a bar or bar table measuring 42 inches high. These chairs are also referred to as bistro or pub-height chairs.