In the realm of height, folding tables fall into two categories:
Fixed height: The table legs cannot be moved or adjusted to increase or decrease the overall height. Most tables are fixed height with legs that raise the tabletop surface to between 28 and 36 inches. These can accommodate most chairs.
Adjustable height: There is a button and notches on the legs that allow the table to become taller or shorter as the need requires. Adjustable folding tables can be raised and lowered within 6 to 8 inches of their maximum height. Although adjustable tables with cross-style legs (similar to the logs on ironing boards) can be much more versatile with heights, becoming very short, or very tall, depending on how close the legs are pulled together or spread apart.