| maximum | Total | | | | | | limit | load | | |-----------------+-----------+----------+--------
----+----------+----------+---------| | | | | | In.-lbs. | In.-lbs. | In.-lb. | | | Lbs. per | Lbs. per | Lbs. per | per cu. | per cu. | per | | | sq. in. | sq. in. | sq. in. | inch | inch | inch | | | | | | | | | | Hardwoods | | | | | | | | | | | | | | | | Ash, black | 2,580 | 6,000 | 960,000 | 0.41 | 13.1 | 38.9 | | white | 5,180 | 9,920 | 1,416,000 | 1.10 | 20.0 | 43.7 | | Basswood | 2,480 | 4,450 | 842,000 | .45 | 5.8 | 8.9 | | Beech | 4,490 | 8,610 | 1,353,000 | .96 | 14.1 | 31.4 | | Birch, yellow | 4,190 | 8,390 | 1,597,000 | .62 | 14.2 | 31.5 | | Elm, rock | 4,290 | 9,430 | 1,222,000 | .90 | 19.4 | 47.4 | | slippery | 5,560 | 9,510 | 1,314,000 | 1.32 | 11.7 | 44.2 | | white | 2,850 | 6,940 | 1,052,000 | .44 | 11.8 | 27.4 | | Gum, red | 3,460 | 6,450 | 1,138,000 | | | | | Hackberry | 3,320 | 7,800 | 1,170,000 | .56 | 19.6 | 52.9 | | Hickory, | | | | | | | | big shellbark | 6,370 | 11,110 | 1,562,000 | 1.47 | 24.3 | 78.0 | | bitternut | 5,470 | 10,280 | 1,399,000 | 1.22 | 20.0 | 75.5 | | mockernut | 6,550 | 11,110 | 1,508,000 | 1.50 | 31.7 | 84.4 | | nutmeg | 4,860 | 9,060 | 1,289,000 | 1.06 | 22.8 | 58.2 | | pignut | 5,860 | 11,810 | 1,769,000 | 1.12 | 30.6 | 86.7 | | shagbark | 6,120 | 11,000 | 1,752,000 | 1.22 | 18.3 | 72.3 | | water | 5,980 | 10,740 | 1,563,000 | 1.29 | 18.8 | 52.9 | | Locust, honey | 6,020 | 12,360 | 1,732,000 | 1.28 | 17.3 | 64.4 | | Maple, red | 4,450 | 8,310 | 1,445,000 | .78 | 9.8 | 17.1 | | sugar | 4,630 | 8,860 | 1,462,000 | .88 | 12.7 | 32.0 | | Oak, post | 4,720 | 7,380 | 913,000 | 1.39 | 9.1 | 17.4 | | red | 3,490 | 7,780 | 1,268,000 | .60 | 11.4 | 26.0 | | swamp white | 5,380 | 9,860 | 1,593,000 | 1.05 | 14.5 | 37.6 | | tanbark | 6,580 | 10,710 | 1,678,000 | 1.49 | | | | white | 4,320 | 8,090 | 1,137,000 | .95 | 12.1 | 36.7 | | yellow | 5,060