Shiplap is a term used to describe a type of wooden board used commonly in the construction of barns, sheds, outbuildings and inexpensive or seasonal homes. It is either rough-sawn 1" or milled 3/4" pine or similarly inexpensive wood between 3" and 10" wide with a 3/8" - 1/2" rabbet on opposite sides of each end. The rabbet allows the boards to overlap in this area.

Useful for its strength as a supporting member, and its ability to form a relatively tight seal when lapped, shiplap is usually used as a type of siding for buildings that do not require extensive maintenance and must withstand cold and aggressive climates. Rough-sawn shiplap is attached vertically in post and beam construction, usually with 6d-8d common nails, while milled versions, providing a tighter seal, are more commonly placed horizontally, more suited to two-by-four frame construction.

Small doors and shutters such as those found in barns and sheds are often constructed of shiplap cut directly from the walls, with only thin members framing or crossing the back for support. Shiplap is also used indoors for the rough or rustic look that it creates when used as paneling or a covering for a wall or ceiling. Shiplap is often used to describe any rabbeted siding material that overlaps in a similar fashion.

The grooves shown in the image at top right are not actually typical of shiplap. There are no grooves showing in the drawing of a section of a shiplap plank shown at right - only the rabbets. In fact, the primary purpose of shiplap is to show a smooth surface with a minimal amount of effort and material wastage.

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Look at other dictionaries:

  • shiplap — [ship′lap΄] n. 1. a kind of boarding or siding in which adjoining boards are rabbeted along the edge so as to make a flush joint 2. such a joint …   English World dictionary

  • shiplap — /ˈʃɪplæp/ (say shiplap) noun 1. a type of wooden cladding in which boards overlap to create a seal against weather. 2. a wooden board used in this type of construction, usually for barns, sheds, or other such buildings …  

  • shiplap — noun Date: 1895 wooden sheathing in which the boards are rabbeted so that the edges of each board lap over the edges of adjacent boards to make a flush joint …   New Collegiate Dictionary

  • shiplap — /ship lap /, n. Carpentry. 1. an overlapping joint, as a rabbet, between two boards joined edge to edge. 2. boarding joined with such overlapping joints. See illus. under siding. [1850 55; SHIP + LAP2] * * * …   Universalium

  • shiplap — noun A type of wooden board that has rabbets to allow them to be overlapped …   Wiktionary

  • shiplap — verb fit (boards) together by halving so that each overlaps the one below. noun shiplapped boards, typically used for cladding. ↘a joint between boards made by halving …   English new terms dictionary

  • shiplap — ship•lap [[t]ˈʃɪpˌlæp[/t]] n. 1) bui an overlapping joint, as a rabbet, between two boards joined edge to edge 2) bui boarding joined with such overlapping joints • Etymology: 1850–55 …   From formal English to slang

  • shiplap — v. & n. fit (boards) together for cladding etc. so that each overlaps the one below. n. such cladding …   Useful english dictionary

  • Manning–Kamna Farm — Manning Kamna Farm U.S. National Register of Historic Places …   Wikipedia

  • David L. Shirk Ranch — U.S. National Register of Historic Places U.S. Historic district …   Wikipedia

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