The pitch of the sides of a wooden washing tray can be obtained as in Fig. 1, a centre line being squared across the sides and ends, and half the required length or width set off from it at both top and bottom. Then connect these marks as shown. The ends should be trenched into the sides for the full thickness, as shown in Figs. 2 and 3. The grip should be at the extreme top of the ends and should run quite across, so that two hands can take hold if necessary. Iron nails and screws may be used; the heads simply require a little putty over them. Pit the joints, make them tight, nail well, plane off the edges all round so that the bottom fits well, and put them all together without paper, paint, or white lead.

Fig. 1.

Fig. 2.

Fig. 3. Making a Wooden Washing Tray.