Where did the idea of deacon's benches come from and what are they for?

A friend of mine is a few months from ordination to the permanent deaconate, I thought it'd be a fun project for the my Timberwolf troop to make him a [Deacon's Bench](https://en.wiktionary.org/wiki/deacon 's_bench). But is that something deacon's typically have or is the whole idea of a deacon's bench just a wide bench that a couple of deacons can sit on in the sanctuary of a church during Mass (or do deacons often have butts that wide?)? And hence, kind of a pointless things to give a deacon. Also, is it a more properly called a deacons' bench? [Pintrest link](https://www.pinterest.com/pin/229542912231600413/) for people who might want to look at some wide benches.