Wiktionary
ladderback
n. A chair whose back incorporates a series of horizontal bars.
Usage examples of "ladderback".
Even the ladderback chairs were unruly, pushed this way and turned that, instead of their usual obedient stance, flush to the old pine refectory table.
The Hindu and Hassan brought in a pair of ordinary ladderback chairs and set them down at center stage, back to back and about six feet apart.