MECHANICAL PROPERTIES. TABLE 75.— Conifers Grown in U. S. (English Units). 



Common and botanical 

 name. 



Cedar, incense 



(Libocedrus decurrens) 

 Cedar, Port Orford 



{Chamaecyparis law- 

 soniana) 

 Cedar, western red 



{Thuja flicata) 

 Cedar, white 



{Thuja occidentalis) 

 Cypress, bald 



(Taxoditim distichum) 

 Fir, amabilis 



(Abies amabilis) 

 Fir, balsam 



{Abies halsamea) 

 Fir, Douglas (i) 



{Pseudntsuga taxifolia) 

 Fir, Douglas (2) 



{Pseudotsuga taxifolia) 

 Fir, grand 



{Abies grandis) 

 Fir, noble 



{Abies nobilis) 

 Fir, white 



{Abies concolor) 

 Hemlock (eastern) 



{Tsuga canadensia) 

 Hemlock (western) 



{Tsuga heterophylla) 

 Larch, western 



{Larix occidentalis) 

 Pine, Cuban 



{Pinus heterophylla) 

 Pine, loblolly 



{Pinus taeda) 

 Pine, lodgepole 



{Pinus contorla) 

 Pine, longleaf 



{Pinus palustris) 

 Pine, Norway 



{Pinus resinosa) 

 Pine, pitch 



{Pinus rigida) 

 Pine, shortleaf 



{Pinus echinata) 



Pine, sugar 



_ {Pinus lambertiana) 



Pine, western white 



_ {Pinus monticola) 

 Pine, western yellow . , . , 



{Pinus ponderosa) 



Pine, white 



{Pinus slrobus) 

 Spruce, red 



{Picea rubens) 

 S-pruce, Sitka 



{Picea silchensis) 

 Tamarack 



{Larix laricina) 

 Yew, western 



{Taxus brevifolia) 



Locality 

 where grown. 



Cal. and Ore 

 Ore. 



Wash, and 



Mont. 

 Wis. 



La. and Mo. 



Ore. and 

 Wash. 

 Wis. 



Wash, and 



Ore. 

 Mont, and 



Wyo. 

 Mont, and 



Ore. 

 Ore. 



Cal. 



Tenn. and 



Wis. 

 Wash. 



Mont, and 



Wash. 

 Fla. 



Fla., N. and 



S. Car. 

 Col., Mont. 



and Wyo. 

 Fla., La. and 



Miss. 

 Wis. 



Term. 



Ark. and La. 



Cal. 



Mont, 



Col., Mont., 

 Ariz., Wash, 

 and Cal. 



Wis. 



N. H. and 



Tenn. 

 Wash. 



Wis. 



Wash. 



" a 





108 



52 



39 



55 



87 



102 



117 



36 



38 



94 



41 



IS6 



los 



71 



S8 



47 



70 



6S 



47 



54 



8S 



64 



123 



S8 



9S 



74 

 43 

 S3 

 52 



44 



Weight. 



Green. 



Air- 

 dry. 



lb/ft' 



45 

 39 



37 



28 

 48 

 47 

 45 

 38 

 34 

 44 

 31 

 56 

 48 

 41 

 48 

 53 

 54 

 39 

 SO 

 42 

 S4 

 SO 

 SO 

 39 

 46 



39 

 34 

 33 



47 

 S4 



30 



27 

 25 



34 



32 

 27 

 26 

 26 

 29 

 29 

 37 

 45 

 39 

 28 

 43 

 34 

 35 

 37 

 26 

 30 

 28 



27 

 28 

 26 

 38 

 4S 



Static bending. 



3900 

 3900 



3300 

 2600 

 4000 

 3900 

 3000 

 5000 

 3600 

 3600 

 3400 

 3900 

 4200 

 3400 

 4600 

 3600 

 4400 

 3000 

 5400 

 3700 

 3700 

 4500 

 3300 

 3500 

 3100 



3400 

 3400 

 3000 

 4200 

 6500 



^•3 

 2 



6200 

 6800 



5200 

 4200 

 6800 

 6300 

 4900 

 7800 

 6400 

 6100 

 5700 

 6000 

 6700 

 6100 

 7SOO 

 8800 

 7.500 

 5SOO 

 8700 

 6400 

 6700 

 8000 

 5300 

 5700 

 5200 



5300 

 S700 

 SSOO 

 7200 



lOIOD 



•oX 



o >> 



840 

 1500 



9SO 



640 

 1190 

 1300 



960 

 1580 

 1 180 

 1300 

 1280 

 1130 

 1120 

 1190 

 1350 

 1630 

 1380 

 loSo 

 1630 

 1380 

 1120 

 1450 



970 

 1330 

 1010 



1070 

 iiSo 

 1180 

 1240 

 990 



Impact 

 bending. 



7300 

 9300 



7100 

 S30O 

 8000 

 7800 

 6900 

 9400 

 9100 

 8100 

 7900 

 7200 

 7900 

 7800 

 9400 



11300 

 9500 

 7200 



10800 

 7500 

 9100 



11200 

 6700 

 7600 

 6700 



6500 

 7200 

 7900 

 7800 

 13100 



Compression. 



ParaUel 

 to grain 



P- 



limit. 



Ib/in2 



11 



2870 

 3970 



2500 

 1420 

 3100 

 2380 

 2220 

 3400 

 2320 

 2680 

 2370 

 2610 

 2710 

 2290 

 3250 

 3950 

 2870 

 2100 

 3840 

 2470 

 2100 

 3650 

 2340 

 2770 

 2080 



2370 

 2360 

 2280 

 30I0 

 3400 



■3^1 



S.s- 



c; to 



13 



460 

 380 



310 

 290 

 470 

 320 

 210 

 S30 

 450 

 340 

 310 

 440 

 500 

 3S0 

 560 

 590 

 SSO 

 310 

 600 

 360 

 Sio 

 480 

 35° 

 300 

 340 



310 

 350 

 330 

 480 

 1040 



Shear. 



Ten- 

 sion. 



CoLrMN Notes {continued). — (7) recommended allowable working stress (interior construction): i tabular value; experi- 

 mental resL Its on tests of air-dry timber in small .lear pieces average 50 per cent higher; kiln-dry, double tabular values; (10) 

 repeated falls of so-lb. hammer from increasing heights; 11-12, 203.2-mm (8 in.) long specimen loaded on ends with deformations 

 measured in a iS2.4-mm (6 in.) gage length; (121 allowable working stress i tabular crushing strength; (13) 152.4-mm (6 in.) long 

 block loaded on its side with a central bearing area of 258o.6-mm2 (4 in^) allowable working stress, J tabular value. (14) so.8-mm 

 by so.8-mm (2 in.) projecting lip sheared from block; allowable working stress, J tabular value; (18) 63.s-mm (2! in.) specimen with 

 2S.4-mm (i in.) free loaded length; allowable working stress, J Ubular value. (16-1/) for values in lbs. multiply values of metric 

 tables by 2.2. 



Smithsonian Tables. 



