Carpentry for Boys / In a Simple Language, Including Chapters on Drawing, Laying Out Work, Designing and Architecture With 250 Original Illustrations

by James Slough Zerbe

Fig. 254.

Fig. 255.

A pair of parallel bars is shown in Fig. 254. The dimensions of this will vary, and be dependent on the size of the boy intending to use it; but a size best adapted is to make the posts 3 feet high, and the distance between the bars 16 inches. This gives ample room for the exercises required. The length between the posts along the bars should be at least 5 feet. The entire structure can be made of soft wood, except the bars, which should be of hard, rigid wood. The posts can be made of 2" × 2" material, and the braces 2" × 1". The base pieces, both longitudinal and transverse, should also be of 2" × 2" material.

Fig. 256.