Timber: Macrocarpa is recommended for its lightness and workability. It is also suitable to keep outdoors without having to treat the wood or apply a finish. All pcs 40mm x 36mm.
Back section
E: 2pcs 1065mm
C: 4pcs 800mm
D: 2pcs 735mm
Front section
F: 9pcs 230mm
A: 6pcs 380mm
B: 2pcs 890mm
Steel rod: 6mm x 4m & 8 x M6 washer & nut
Tape measure
Tenon Saw
Drill & drill press
Sandpaper
Router
M6 1.0 Die
Sandpaper: P120 & P240
Use templates to mark out macrocarpa timber lengths.
Cut timber lengths A through to F (see materials).
Use a 9mm drill bit to drill holes for steel to go through.
Use a sanding machine to sand the ends straight and clean. Hand sand all markings and scratches off each timber component but keep your name on your work. Sand from P120 grit to P240 before applying finish.
Use a router with a 45° chamfer (angle cut) on the ends of each piece to clean up the edges and make it look tidy.
Apply a finish of your choice. You can use linseed oil, paint or a stain. Make sure you trial the finish of your choice on a spare piece of wood before applying to all of your work.
Cut 4 lengths of steel rod, 2 @ 350mm and 2 @ 650mm.
Use a chamfer drill bit on each end of the steel rod to help start tapping the thread.
Use M6 1.0 thread die to cut thread on each end of the steel rods. Thread needs to be 40mm long.
Organise pieces of wood together using diagram A and B.
Fit Seat pieces (F, A, B) together first by threading the 650mm steel rod through the holes of pieces F, A, B shown in diagram A.
Use washers and nuts to hold pieces together.
Next fit Back pieces (E, C, D) together and thread the 650mm steel rod through the holes of the F pieces shown in diagram B
Finally thread the 350mm steel rods shown in diagrams A and B. Tighten the nuts on each nuts until everything’s secure.
Diagram A
Diagram B