Table 3.
The decay rating of the wooden deck in 10 years

Part		Retention (kg/m3)	Penetration (mm)	The existence of checking depth more than 2 cm	Decay rating
Post			< 6	Yes	9.0
Rail	Cap	Total: 0.648		Yes	7.0
	Top	CuO: 0.441		No	8.5
	Base	DDAC: 0.207		Yes	8.0
	Baluster			No	8.5
Decking				Yes	7.0