Units of paper quantity the 500-sheet ream has become the de facto international standard. A paper bundle is a quantity of sheets of paper, currently standardized as 1,000 sheets. A bundle consists of 2 reams or 40 quires. As an old UK and US measure, it was previously equal to 960 sheets. When referring to chipboard, there are two standards in the US. In general, a package of approximately 50 pounds of chipboard is called a bundle. Thus, a bundle of 22 point chipboard (0.022" thick) 24" × 38", with each sheet weighing 0.556 pounds, contains 90 sheets. However, chipboard sold in size 11"
Section (bookbinding) meaning of quire, "quinterno di carta". Later, when bookmaking switched to using paper and it became possible to easily stitch 5 to 7 sheets at a time, the number of sheets and pages in a gathering became more variable. Section (bookbinding) In bookbinding, a section, gathering, or signature refers to a group of sheets, folded in the middle, and bound into the binding together. The section is the basic building block of codex bindings. In Western bookbinding, sections are sewn through their folds, with the sewing thread linking each section to its neighboring sections. The gatherings can be seen by