Table 5. Calculation results based on the several related national code theoretical equations for the dowel bearing strength

	Experimental	KBC	NDS
Parallel	35.1	39.8 (13%)	38.9 (11%)
Perpendicular	16.7	25.3 (52%)	24.8 (48%)

KBC: Korean building code, NDS: National Design Specification for Wood Construction.