6. Character of veneers, inlay, carving, or other ornament.
7. Technical skill of the machine operators and assemblers.
8. Care in sanding to ensure fine finishing.
Important points concerning the legs, tops, and end panels of cases are substantially the same as for chairs and tables. Standard five-ply for the tops of cases and standard three-ply for the end panels is the usual but not the universal practice. Other points include:
9. Construction of corner posts—solid wood to the floor, or with the turned legs separately made and doweled to the bottom of the posts, which cheapens but weakens construction.
Figure 21a.—C shows how a chair post is joined to the chair rails. Central figure is the chair leg; beneath it is a corner block; at either side are the rails with holes bored in them, as well as in the leg, to hold the dowels. The holes in the corner block are for screws. D shows how the joint looks when assembled. The pieces fit snugly and are braced to prevent pulling apart, the corner block augmenting the dowel joint.
10. Method of framing—solid framework above, between and below the drawers, with tongue and groove joints and three-ply veneer panel dust bottoms, or some cheaper method; frames "dadoed" (rigidly recessed) into the ends, and end panels dadoed into the legs, or some cheaper construction; shelves dadoed into end panels and also doweled into legs, and back doweled into legs, or some cheaper method, as nails or screws.
11. Drawer construction, including type of plywood; type of joint-dovetailed joints front and back, which is the best construction; lock joint (cheaper, but not nailed); nailed joint, still cheaper; butt joint (also requiring nails, the cheapest and poorest joint); drawer bottom dadoed into sides and ends, and supported by triangular rubbed-in blocks, or some cheaper method; center slides; perfect or less than perfect fitting.