|Sackett Plaster Board ad, 1907|
The best-known early plasterboard in the United States was Sackett Board, developed by Augustine Sackett and Fred Kane in 1891. As patented in 1894, it was multiple, very thin layers of plaster of Paris between felt paper. Sackett organized Sackett Plaster Board Co., with offices in New York City. Sackett refined the design to 3 layers of gypsum plaster between 4 layers of felt paper, cut into 32 by 36 inch boards. By 1907, United States Gypsum Co., which owned gypsum mines and plaster manufacturers, controlled Sackett's company. U.S. Gypsum continued to produce Sackett Board for at least 10 more years.
|World War I plasterboard from USA|
Plaster wallboard manufacturers also began selling joint fillers. U.S. Gypsum's Sheetrock trademark, first used 28 Aug. 1917, was a plaster wallboard sold with a joint filler. In 1920, Ontario Gypsum Co. of Paris, Canada, advertised its Gyproc wallboard and joint filler.
In the United Kingdom, most builders used a full coat of plaster, and it continued to be called plasterboard. In the US, boards made for this purpose were called gypsum lath or rock lath.
|Brades lath hatchet, UK|
Specialized drywall hatchets and hammers became popular in the US immediately after World War II. One representative manufacturer, Wallboard Tool Co., was founded in 1946 in California. This link is for The Wal-Board Tool Story, their 1953 catalog in brochure format.
Before the development of drywall trowels, plaster on plasterboard and drywall compound were applied with putty knives and plastering trowels. These tools are covered elsewhere on this site.
|Wal-Board hammer, 1953|
|Lath hatchets, USA, 1906|