In Fig. 64 we show such a set as we propose that you should make. The sides may be 3 feet or 6 feet in length, and about 5 inches wide, and 1 inch thick. The bottom ends must be so cut that when standing it is in a slanting position. The four steps shown at a are 5¼ inches wide, so that when fixed the front projects ½ inch from the side, and each is 1 inch thick. The top step is 12 inches wide, the next below 13 inches, and so on for each step, so that the lower end of the steps spread out, and by this means stands firmer. The distance between each step should be from 7 inches to 9 inches, and each must be fixed to the sides by a groove, as shown at a, or by mortise and tenon; in either case they must be very secure. The top step of all forms a sort of stage; into it the sides should be mortised, or let into a groove. The latter arrangement, however, tends to weaken it, therefore the other is the better way. This step is wider than the others, and projects all round about 1 inch. When this portion is complete, screw on a flat piece of board across the top, as at b. To this attach a pair of strong flap-hinges. Then make a light frame of 1 inch stuff, consisting of two upright pieces 2 inches wide, and two cross-pieces; one at the top, c, and the second about a foot from the bottom, d, mortised into the uprights, and held fast by glue. Then let it be screwed to the under flap of the hinges, and be cut off the same length as the steps side. A cord, s, is attached to the steps and frame to determine the distance to which they can stand apart, and give firmness to the whole.

Fig. 64. - Sut of Steps.