(1) The sawmill providing graded lumber shall provide a written summary that includes the following information:
- (a) A declaration that the lumber has been graded by a certified grader.
- (b) The name of the wood species, and its design value group as shown on Table 5. Table 5 Design Values of Species Groups for #2 and Better Grade Design Values (psi) Tension Shear Compression Compression Parallel Parallel Perpendicular Parallel Specific Species Bending to Grain to Grain to Grain to Grain Modulus of Elasticity Gravity Group Name Fb Ft Fv Fcꓕ Fc‖ E Emin G (od m/v) Bald Cypress 825 450 160 615 900 1,300,000 470,000 0.47 Beech- Birch- Hickory 1,000 600 195 715 750 1,500,000 550,000 0.71 Cottonwood 625 350 125 320 475 1,100,000 400,000 0.41 Eastern Softwoods 575 275 140 335 825 1,100,000 400,000 0.36 Mixed Maple 700 425 195 620 550 1,100,000 400,000 0.55 Mixed Oak 800 475 170 800 625 900,000 330,000 0.68 Mixed Southern Pine 750 450 175 565 1,250 1,400,000 510,000 0.51 Yellow Poplar 700 400 145 420 575 1,300,000 470,000 0.43
- (c) The quantity of lumber, the date it was cut and graded, and the name of the grader and the sawmill.
- (d) The size (nominal or actual), whether it is rough-sawn or surface/planed, and the moisture content of the lumber when graded.
- (2) Upon request, the end user shall provide a copy of the summary, and information about the design values of the lumber shown on Table 5 based on its designated species group shown on Table 6. Table 6 Species Groups and Component Species, including Species not in the National Design Supplement (*TN Species) Species Group Common Name Scientific Name Grading Agency*** Baldcypress Baldcypress Taxodium distichum SPIB Beech - Birch - American Beech Fagus grandifolia NELMA Hickory Bitternut Hickory Carya cordiformis Mockernut Hickory Carya tomentosa Nutmeg Hickory Carya myristiciformis Pecan Hickory Carya illinoinensis Pignut Hickory Carya glabra Shagbark Hickory Carya ovata Shellbark Hickory Carya laciniosa Sweet Birch Betula lenta Water Hickory Carya aquatica Yellow Birch Betula alleghaniensis Black Walnut Juglans nigra *TN Species Black Locust Robinia pseudoacacia Honeylocust Gleditsia triacanthos Cottonwood Cottonwood Populus deltoides NSLB Basswood Tilia americana *TN Species Eastern Softwoods Balsam Fir Abies balsamea NELMA, NSLB Black Spruce Picea mariana Eastern Hemlock Tsuga canadensis Eastern White Pine Pinus strobus Jack Pine Pinus banksiana Red Pine Pinus resinosa Pitch Pine Pinus rigida Red Spruce Picea rubens Tamarack Larix laricina White Spruce Picea glauca Mixed Maple Black Maple Acer nigrum NELMA Red Maple Acer rubrum Silver Maple Acer saccharinum Sugar Maple Acer saccharum Sycamore Platanus occidentalis *TN Species Black Tupelo Nyssa sylvatica Water Tupelo Nyssa aquatica Southern Magnolia Magnolia grandiflora Cucumbertree Magnolia acuminata Hackberry Celtis occidentalis American Elm Ulmus americana Rock Elm Ulmus thomasii Slippery Elm Ulmus rubra Black Cherry Prunus serotina Mixed Oak Black Oak Quercus velutina NELMA Cherrybark Oak Quercus falcata var. pagodaefolia Northern Red Oak Quercus rubra Southern Red Oak Quercus falcata Laurel Oak Quercus laurifolia Pin Oak Quercus palustris Scarlet Oak Quercus coccinea Water Oak Quercus nigra Chestnut Oak Quercus prinus Live Oak Quercus virginiana Post Oak Quercus stellata Swamp Chestnut Oak Quercus michauxii White Oak Quercus alba Bur Oak Quercus macrocarpa Overcup Oak Quercus lyrata Swamp White Oak Quercus bicolor Mixed Southern Pine Longleaf Pine Pinus palustris SPIB Slash Pine Pinus elliotti Shortleaf Pine Pinus echinata Loblolly Pine Pinus taeda Pond Pine Pinus serotina Virginia Pine Pinus virginiana Yellow Poplar Yellow Poplar Liriodendron tulipifera NSLB Sweetgum Liquidambar styraciflua *TN Species Honeylocust Gleditsia triacanthos Blue Ash Fraxinus quadrangulata Black Ash Fraxinus nigra Green Ash Fraxinus pennsylvanica White Ash Fraxinus americana
Authority: T.C.A. §§ 4-3-203 and 43-28-313. Administrative History: New rules filed May 24, 2022; effective August 22, 2022.