Selling And Using Certified Lumber

(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 (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 - Hickory American Beech Fagus grandifolia NELMA Bitternut Hickory Carya cordiformis Mockernut Hickory Carya tomentosa Species Group Name Design Values (psi) Specific Gravity Bending Tension Parallel to Grain Shear Parallel to Grain Compression Perpendicular to Grain Compression Parallel to Grain Modulus of Elasticity Fb Ft Fv Fcꓕ Fc‖ E Emin G (od m/v) Bald Cypress 1,300,000 470,000 0.47 Beech- Birch- Hickory 1,000 1,500,000 550,000 0.71 Cottonwood 1,100,000 400,000 0.41 Eastern Softwoods 1,100,000 400,000 0.36 Mixed Maple 1,100,000 400,000 0.55 Mixed Oak 900,000 330,000 0.68 Mixed Southern Pine 1,250 1,400,000 510,000 0.51 Yellow Poplar 1,300,000 470,000 0.43 NATIVE SPECIES LUMBER CHAPTER 0080-07-07 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 NATIVE SPECIES LUMBER CHAPTER 0080-07-07 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