3829/86 - Seven-ply panel, from 1 981 to 2 400 mm long, from 762 to 1 220 mm wide, and about 44 mm thick, consisting of a blockboard-type core between two panels of three-ply plywood; the seven- ply panel, which has two long edges (possibly veneered) and one or both short edges possibly veneered consisting primarily of a single piece of timber known as a ‘lipping’, has not undergone any further working - The Trade Hub