Concept 3:
>> Legs are attached to the seat with threaded steel rod/dowel
>> Back Rest (Pivot Joint)
Material Consideration: Legs + Seat >> Solid timber , Back Rest >> Plywood
Concept 2:
>>4 parts:
Legs >> Each front leg diagonally connected to the back leg with steel bracing.
Seat
Back rest >> slotted in to seat
>>Material Consideration:
Legs >> solid timber / Tubular steel
Seat >> Plywood
Back rest >> Plywood
Concept 1:
3 separate parts >> Front legs, Seat, Folding Back Legs + Back Rest
Front legs attached to seat with threaded rod/dowel.
Back legs are slotted in to the holes on the seat.
Material Consideration >> Solid Timber
