What does timbering mean?
Timbering refers to a framework of wooden supports used to strengthen or hold up a structure. Its most characteristic use is in mining, where timbering consists of beams and props placed inside shafts and tunnels to prevent the surrounding earth or rock from collapsing. Timbering also appears in building and civil-engineering contexts, particularly in the construction of roofs and other supports. The word can denote either the timber framework itself or the work of making and installing it. Historically, timbering was a vital part of underground mining because mines were excavated without the reinforced concrete and engineered support systems common today. Today, the term remains common in specialist and historical descriptions of mining, while related forms such as timberwork are also used in general construction. Timbering is normally uncountable, so individual supports are described separately rather than by pluralizing the word.
nounTimbering is the use or framework of wooden beams and other timbers to support a structure, especially a roof, tunnel, or mine. It can also refer collectively to the timbers used in such a framework.
- The framework or collective timbers used to support a roof, building, tunnel, or excavation.
- The craft or work of installing wooden supports, especially in a mine or tunnel.
"The mine's timbering was inspected for signs of rot before the workers descended."
"The old mine's timbering had been reinforced with steel."
"Careful timbering kept the tunnel stable while the excavation continued."
Timbering is generally an uncountable collective noun. Individual pieces of wood are described using terms such as “timbers,” “beams,” or “supports.”
"The crew inspected the timbering before entering the mine."
Timbering once held up the dangerous depths of mines: long wooden supports braced tunnels and shafts against collapsing rock.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does timbering come from?
Timbering derives from English “timber,” an Old English word of Germanic origin; related forms exist in Dutch and other Germanic languages. The noun “timbering” developed by adding the suffix “-ing” to indicate an action, a result, or a collection of timbers. Its established mining sense reflects the long history of wooden supports in underground excavations.
How timbering is actually used
Usually technical and formal, especially in construction, civil engineering, and mining. It is generally treated as an uncountable noun, though related countable terms such as “timber” and “support” may be used for individual pieces.