treenails - Bolts or plugs of wood used to fasten plank to the timbers of vessels. Pronounced "trennel. "
trestle trees - In ships long pieces of timber fitted at the masthead in a fore-and-aft direction to support the cross trees.
From the stitched form the next step onwards is to fasten the materials out of which the hull is built up by pegs or treenails; and of this system early types appear among the Polynesian islands and in the Nile boats described by Herodotus (ii.. 96), ...
TRUNNEL - A round or multi-sided piece of hardwood, driven through planks and timbers to connect them. Treenails were employed most frequently in attaching planking to frames, attaching knees to ceiling or beams, and in the scarfing of timbers..
TREENAILS Wooden pins employed instead of nails or spikes to secure the planking of a wooden vessel to the frames. TRIM The arithmetic sum of the drafts forward and aft above and below the mean water-line.
 See also: Shroud, Thole, Boat, Shore, Fair
  
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