chinese wooden house truss structure

architrave base beam bearing board brace bracing bracket brown cantilever capstone ceiling cleat column corner crossbeam crown deck design diagonal dovetail eave floor flooring footing foundation framework framing fretwork furniture gable guitar gusset gutter hanger hardwood header iron jack joint joist knee lattice ledger line lintel loadbearing mortise overhang pattern plate plinth plumb post purlin rafter reinforcement ridge rod roof scaffold shear sill spacer span splice stairs strut stud support tenon tie truss underpinning ventilation wall wood