The ordinary joiner's method of making paneling is shown by A, Fig. 272, a groove being worked in the stile and the moulding being nailed to both the stile and the panel. If the nail is driven as at Y, neither the panel nor the moulding can move when shrinkage takes place, consequently the panel cracks. If nailed into the panel and not into the stile the shrinkage of the panel causes an opening to appear between the stile and the moulding unless the moulding is " raised " and rebated over the stile. A better method of making the paneling is shown at B. In this construction if the moulding is nailed into the stile and rail, without penetrating the panel, the panel is loose and can shrink without damage. If glue is used to hold the moulding, however, this method becomes as bad as the first.
Fig. 273 shows the cabinet maker's method, by which almost a perfect piece of work may be secured. In this method a rebate is first cut in the rail on the finish side. In this the moulding is glued solidly so it practically becomes a part of the rail. When the glue is dry the varnished panel is set in from the back and held in place by strips nailed to the rail. This leaves the panel loose and free to move should shrinkage take place. All first-class wainscoting should be built in this way.
In very fine cabinet work the panel frame would be veneered, as shown in Fig. 273, C being the mahogany or other choice wood veneer, D oak veneer, E the core, which may be of ash, pine or chestnut, and F and G oak veneers of the same thickness as the veneers C and D, but with the grain of the wood running at right angles to that of the core and the outer veneers. The core itself is also built up of 7/8inch strips glued together. The veneers used in this class of work do not exceed 1/8 inch in thickness.