headstick

In letterpress printing, a headstick is a furniture piece, typically made from wood or metal, that sits at the top edge of a locked-up form inside the chase. It runs the full width of the chase and holds the type and other matter firmly in place, functioning as a physical stop that prevents type from shifting upward during the press run. The headstick is placed outside the printed area, so it never contacts the paper.

Headsticks are cut or cast to exactly type height, usually 0.918 inches in the imperial system used in English-language printing. They come in various lengths to match different chase widths, and their thickness is chosen to suit the job. A typical headstick might be 2 to 4 picas deep (the dimension running toward the foot of the form), creating enough stiffness without wasting precious chase space where type could go.

The term reflects its location: the stick at the head (top) of the form. Printers also use footsticks at the bottom and sidesticks on the left and right, all working together to brace the assembled type and spacing material. The headstick works in concert with furniture (the larger wooden or metal blocks around the perimeter) to create a locked, immovable mass that can safely handle press pressure and repetitive impacts.

A headstick that has warped, worn, or developed uneven surfaces creates problems immediately. If it sits higher than type height at any point, it prevents the form from locking properly; if lower, it fails to support the type adequately and leads to inking and impression failures. Printers regularly check headsticks against a true surface and replace them when damage accumulates.

Digital printing and offset presses have largely eliminated the need for headsticks, but the term persists among letterpressers, book printers, and restoration specialists who work with hot-metal and hand-set type. It appears in foundry catalogs and in reference manuals for press maintenance dating back more than a century.