Table 3. STS load bearing properties of red pine

Specimen		Specific gravity (g/cm3)	Annual ring width (mm)	PL Pp1) (kN)	PR Pp (kN)	PT Pp (kN)
8T	Mean	0.45	3.99	7.42	4.86	3.31
	SD	0.02	0.89	0.32	0.41	0.75
	CV(%)	4.34	22.39	4.35	8.35	22.77
8S	Mean	0.47	4.49	6.87	4.49	3.40
	SD	0.04	0.75	0.8	0.45	0.66
	CV(%)	9.12	16.68	11.62	9.96	19.29
10T	Mean	0.43	4.39	8.28	5.09	3.50
	SD	0.03	0.93	0.37	0.57	0.42
	CV(%)	5.82	21.27	4.46	11.29	11.91
10S	Mean	0.47	5.12	7.11	4.23	3.42
	SD	0.03	0.61	1.69	0.69	0.26
	CV(%)	6.80	11.88	23.75	16.38	7.68
12T	Mean	0.43	4.20	9.54	6.32	4.46
	SD	0.01	0.77	0.75	0.67	0.93
	CV(%)	1.97	18.45	7.91	10.62	20.94
Mean		0.45	4.44	7.84	5.00	3.62
SD		0.03	0.86	1.35	0.91	0.76
CV2)		0.07	0.19	0.17	0.18	0.21

P_p: Bearing load at proportional limit.
CV: SD/mean.
PL: specimen of the cross section, PR: specimen of the radial section, PT: specimen of the tangential sections, SD: standard deviation.