Mastblokwerk
Mastblokwerk is a German term used in historical naval architecture and shipbuilding. It refers to a specific method of constructing the mast of a sailing vessel. In essence, mastblokwerk involved building a mast from several separate pieces of timber, often called "planks" or "staves," which were then bound together to form a single, solid mast. This technique was employed when timbers of sufficient size and quality to fashion a mast from a single piece were unavailable or prohibitively expensive.
The individual pieces of wood were typically shaped and then assembled in a cylindrical or square form,
This construction method allowed for the creation of larger and stronger masts than might otherwise have been