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or tre·nail  (trē′nāl′, trĕn′əl, trŭn′əl) also trun·nel (trŭn′əl)
A wooden peg used as a fastener in building wooden ships or timber-frame buildings.


(ˈtriːneɪl; ˈtrɛnəl) or




(Building) a dowel used for pinning planks or timbers together


or tre•nail

(ˈtriˌneɪl, ˈtrɛn l, ˈtrʌn l)

a wooden pin that swells when moist, used for fastening timbers.


A wooden dowel used to prevent a wooden mortise and tenon joint from slipping apart. Trunnels were usually made of a hardwood such as oak or hickory.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Treenail - a wooden peg that is used to fasten timbers in shipbuildingtreenail - a wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast
nog, peg - a wooden pin pushed or driven into a surface
References in periodicals archive ?
As nails were not available all fastenings would be with trenails or wooden pegs driven through holes drilled by hand with an auger.
Cheviller and cloer (7) are correctly identified as the two principal means of fastening together the planks of the hull, the ship's timbers to the hull, etc: 1) by means of wooden plugs, usually called trenails (tree-nails), which were inserted from the outside of the overlapping hull planks and then split on the inside end and fitted with a wooden wedge, often of willow, which would expand on exposure to water, all for the tightest fit; and 2) by iron nails, also driven in from the outside, then through a square iron rove over which the point of the nail was tipped.
Trenails, joggles and wedges were employed to anchor the blocks down to the rock or the stone course below.