sb. Sc. Obs. Also knappald, knapholt. [Scotch variant of clappalde, -olde, CLAPHOLT; app. with substitution of knap for clap.] = CLAPBOARD.
1496. Ld. Treas. Acc. Scot., I. 285. Item, for leding of ixe knapholtis furth of Leith to the Castel of Edinburgh iijs. iiijd. Ibid., 278. Item for ixe knappaldis iiij li. xs.
c. 1575. Balfours Practicks, Custumis (1754), 88. The great hundreth knapple, contenand xxiiij small hundrethis.
1661. Sc. Acts Chas. II., c. 33 (Jam.). That the whole coupers make the said salmond barrels of good and sufficient new knappel.
1707. G. Miége, St. Gt. Brit., II. 30. Pitch, Steel-Kits, Knapple, Oak, Wainscoat.
1753. Maitland, Hist. Edin., III. 248/1. For every hundred of Dantzick Knappell, Foour pennies.
[1898. Compt Buik Dav. Wedderburne (S.H.S.), Introd. 44. The Norwegian timber consisted of roofspars, knapholt and burnwood.]