NAILING OF BOXES
Five-penny cement-coated nails were used in making the boxes. Practically no splitting was caused by the nails in unseasoned white fir, spruce, or cottonwood. There was very little splitting in seasoned cottonwood. The nails, however, caused a slight splitting in the seasoned spruce and quite a noticeable splitting in the white fir, but not enough in either to cause an appreciable loss.
Fig. 2.—Typical 60-pound white fir boxes showing general run of this wood.