Carp. [SOUND sb.3] (See quot. 1842.)

1

1799.  [A. Young], Agric. Linc., 30. Sound-boarding, at 16s. 6d.

2

1842.  Gwilt, Archit., Gloss., Sound-boarding, in floors, consists of short boards placed transversely between the joists, and supported by fillets fixed to the sides of the latter for holding pugging, which is any substance that will prevent the transmission of sound from one story to another. [Hence in Knight, Dict. Mech., etc.]

3