Wood Engineering Properties #2

Related Resources: civil engineering

Wood Engineering Properties #2

Civil Engineering Design and Engineering

Strength and engineering properties of some commercially important woods grown in the United States (inch–pound)

Common species names	Specific gravity	Static Bending			Impact Bending (in.)	Compression Parallel to Grain (lbf/in²)	Compression Perpendicular bending (in.) to grain (lbf/in²)	Shear Parallel to Grain (lbf/in²)	Tension Perpendicular to Grain (lbf/in²)	Side hardness (lbf)
Common species names	Specific gravity	Modulus of Rupture (lbf/in²)	Modulus of elasticity (× 10⁶ lbf/in²)	Maximum Working load (in-lbf/in³)	Impact Bending (in.)	Compression Parallel to Grain (lbf/in²)	Compression Perpendicular bending (in.) to grain (lbf/in²)	Shear Parallel to Grain (lbf/in²)	Tension Perpendicular to Grain (lbf/in²)	Side hardness (lbf)
Hardwoods
Douglas-fir, Coast	0.45	7,700	1.56	7.6	26	3,780	380	900	300	500
Douglas-fir, Coast	0.48	12,400	1.95	9.9	31	7,230	800	1,130	340	710
Douglas-fir, Interior West	0.46	7,700	1.51	7.2	26	3,870	420	940	290	510
Douglas-fir, Interior West	0.50	12,600	1.83	10.6	32	7,430	760	1,290	350	660
Douglas-fir, Interior North	0.45	7,400	1.41	8.1	22	3,470	360	950	340	420
Douglas-fir, Interior North	0.48	13,100	1.79	10.5	26	6,900	770	1,400	390	600
Douglas-fir, Interior South	0.43	6,800	1.16	8.0	15	3,110	340	950	250	360
Douglas-fir, Interior South	0.46	11,900	1.49	9.0	20	6,230	740	1,510	330	510
Fir, Balsam	0.33	5,500	1.25	4.7	16	2,630	190	662	180	290
Fir, Balsam	0.35	9,200	1.45	5.1	20	5,280	404	944	180	400
Fir, California red	0.36	5,800	1.17	6.4	21	2,760	330	770	380	360
Fir, California red	0.38	10,500	1.50	8.9	24	5,460	610	1,040	390	500
Fir, Grand	0.35	5,800	1.25	5.6	22	2,940	270	740	240	360
Fir, Grand	0.37	8,900	1.57	7.5	28	5,290	500	900	240	490
Fir, Noble	0.37	6,200	1.38	6.0	19	3,010	270	800	230	290
Fir, Noble	0.39	10,700	1.72	8.8	23	6,100	520	1,050	220	410
Fir, Pacific silver	0.40	6,400	1.42	6.0	21	3,140	220	750	240	310
Fir, Pacific silver	0.43	11,000	1.76	9.3	24	6,410	450	1,220	—	430
Fir, Subalpine	0.31	4,900	1.05	—	—	2,300	190	700	—	260
Fir, Subalpine	0.32	8,600	1.29	—	—	4,860	390	1,070	—	350
Fir, White	0.37	5,900	1.16	5.6	22	2,900	280	760	300	340
Fir, White	0.39	9,800	1.50	7.2	20	5,800	530	1,100	300	480
Hemlock, Eastern	0.38	6,400	1.07	6.7	21	3,080	360	850	230	400
Hemlock, Eastern	0.40	8,900	1.20	6.8	21	5,410	650	1,060	—	500
Hemlock, Mountain	0.42	6,300	1.04	11.0	32	2,880	370	930	330	470
Hemlock, Mountain	0.45	11,500	1.33	10.4	32	6,440	860	1,540	—	680
Hemlock, Western	0.42	6,600	1.31	6.9	22	3,360	280	860	290	410
Hemlock, Western	0.45	11,300	1.63	8.3	23	7,200	550	1,290	340	540
Hemlock, Larch, western	0.48	7,700	1.46	10.3	29	3,760	400	870	330	510
Hemlock, Larch, western	0.52	13,000	1.87	12.6	35	7,620	930	1,360	430	830