[3] Writers disagree in how much of the shield's surface is to be covered by a fess or other ordinary, ranging from one-fifth to one-third.
The Oxford Guide to Heraldry states that earlier writers including Leigh, Holme, and Guillim favour one-third, while later writers such as Edmondson favour one-fifth "on the grounds that a bend, pale, or chevron occupying one-third of the field makes the coat look clumsy and disagreeable.
[3] A shield of (often six or eight) horizontal stripes of alternating colour is called barry.
Narrower versions of the bar are called barrulets ("little bars"), and when a shield of horizontal stripes alternating colour is composed of ten or more stripes, it is called barruly or burely instead of barry.
[5] Another diminutive of the fess called a closet is said to be between a bar and barrulet, but this is seldom found.