Picnic Table, Benches (Fig. 12-8) use 1/8" x 3/4" x 3/4" angle for frame with 3/8" rod for bracing. Table and bench surfaces are redwood 2 x 4's or 3/4" plywood. Seal all wood surfaces before assembly, and stain or leave natural. Finish with spar varnish.

Rivet in splice plates at "A" and similar points where the angle stock is bent to form corners. Flatten out, drill, and rivet ends of cross braces to the angle at "B" and similar spots. Screw through angle into underside of wood for attaching seats and table top to frame. Wood members extend 6" past frame on ends.

Bird Feeder (Fig. 12-9) employs 3/8" rod for lower tripod members and 11/4" tube for top member. Tripod spacer is 1/4" x 1" bar bent to form a triangle 12" on the side. Halve and overlap ends and pin, per Fig. 4-26. Insert a wood dowel in bottom of tube, and attach rods to tube with wood screws into this dowel.

Upper section of feeder has a 1/4" plywood base 12" x 18", covered with plain sheet aluminum. Pan and lid are bent from a single piece 20" x 27". Turn up a 1" flange around bottom section, and turn down a 1/2" flange on top section. Taper end flanges as shown, and rivet to back flange to support pan lid. The "weather-vane" type center support is a 1/2" plywood panel with a hole cut to fit the open pan section as shown. Slot upper end of tube, and bend out sections to form flanges for attaching to underside of tray and vane, per Fig. 4-77.

Fig. 12-10.

Armchair (Fig. 12-10) uses four pieces of 94" tube. One piece forms the front legs and a crossbar underneath the seat at the front. A second piece forms the back legs and a crossbar underneath the seat at the back. A third starts underneath the seat at the front, extends out and up to form an armrest, down and under the seat again, and back up to carry half the back rest. The fourth forms a similar member on the opposite side. The seat is made of 1" x 3" redwood boards 18" long; the back rest, 10" lengths of the same material.

None of these bends are critical. See Fig. 3-27 and accompanying instructions on tube bending. Bolt the tubes to the seat members, countersinking boltheads on top of wood. Use 3/8" rod for cross bracing, bolted to legs or end-riveted as in Fig. 4-21.

Lawn Chair (Fig. 12-11) is a novel design. It is easy to make, as the structure is very simple. Make the seat and back assembly first. Side frames are panels of 1" maple cut to shape indicated and joined with through bolts and screws. Seat frames extend 16" forward, so distance between front stretcher and lower back stretcher (1" tube) is 16" center to center. All three tubes used as stretchers are held into notches in the wood frame with screws through the tube just inside the open end. The main structural member joining side frames is "B," cut 8" wide, 19" long from 1" maple or oak, and inset into side frames as shown. Attach with four 3" screws into each side frame.

Form legs from two pieces of 3/4" tube. One piece makes front legs and upper crossbar; the second makes back legs and upper crossbar. Cross braces 10" above floor are 3/8" rod, end-riveted into tube at "C" per Fig. 4-21 and rod to rod per Fig. 4-20. Attach each tube crossbar to seat member "B" with four 1/4" through bolts, countersinking heads on upper side.

Seat and back surfaces are plastic or canvas webbing. Cover top side of "B" with foam rubber for main support under web.