Structural lumber from suppressed-growth ponderosa pine from northern Arizona
Lumber was sawn from 150 suppressed-growth ponderosa pine trees, 6 to 16 inches in diameter, harvested near Flagstaff, Arizona. This paper presents grade recover and properties for dry 2 by 4's sawn from the logs and graded by a variety of structural grading systems. Flexural properties met or...
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| Veröffentlicht in: | Forest products journal 2007-12, Vol.57 (12), p.42-47 |
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| creator | Gorman, T.M Green, D.W Cisternas, A.G Hernandez, R Lowell, E.C |
| description | Lumber was sawn from 150 suppressed-growth ponderosa pine trees, 6 to 16 inches in diameter, harvested near Flagstaff, Arizona. This paper presents grade recover and properties for dry 2 by 4's sawn from the logs and graded by a variety of structural grading systems. Flexural properties met or exceeded those listed in the National Design Specification. When graded as Light Framing 43 percent of the 2 by 4's made Standard and Better and as Structural Light Framing, 34 percent made No. 2 and better. Warp was the biggest factor limiting grade yield. About 7 percent of the lumber would make a machine stress-rated (MSR) lumber grade of 1450f, but with no established market such production is not recommended. If graded as laminating stock, about 8 percent of the lumber qualified as L3 or better. A comparison of the results from this study with those from a companion study indicates that appearance grades offer the highest value alternative for lumber produced from this resource. |
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This paper presents grade recover and properties for dry 2 by 4's sawn from the logs and graded by a variety of structural grading systems. Flexural properties met or exceeded those listed in the National Design Specification. When graded as Light Framing 43 percent of the 2 by 4's made Standard and Better and as Structural Light Framing, 34 percent made No. 2 and better. Warp was the biggest factor limiting grade yield. About 7 percent of the lumber would make a machine stress-rated (MSR) lumber grade of 1450f, but with no established market such production is not recommended. If graded as laminating stock, about 8 percent of the lumber qualified as L3 or better. A comparison of the results from this study with those from a companion study indicates that appearance grades offer the highest value alternative for lumber produced from this resource.</description><identifier>ISSN: 0015-7473</identifier><identifier>EISSN: 2376-9637</identifier><identifier>CODEN: FPJOAB</identifier><language>eng</language><publisher>Madison, WI: Forest Products Society</publisher><subject>Analysis ; Applied sciences ; bending strength ; construction materials ; Degradation and preservation ; Design specifications ; Exact sciences and technology ; Forest products industry ; Forests ; glulam ; juvenile wood ; Lumber ; lumber grades ; Lumber industry ; Mechanical properties ; Mechanical woodworking and drying ; modulus of elasticity ; modulus of rupture ; Physical properties ; Pinus ponderosa ; Polymer industry, paints, wood ; Production processes ; Properties ; Properties and testing ; Simulation ; small-diameter trees ; Studies ; suppressed-growth trees ; trees ; warp ; Wood ; Wood products ; wood quality ; Wood. 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Non wovens ; yields</subject><ispartof>Forest products journal, 2007-12, Vol.57 (12), p.42-47</ispartof><rights>2008 INIST-CNRS</rights><rights>COPYRIGHT 2007 Forest Products Society</rights><rights>Copyright Forest Products Society Dec 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19953981$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gorman, T.M</creatorcontrib><creatorcontrib>Green, D.W</creatorcontrib><creatorcontrib>Cisternas, A.G</creatorcontrib><creatorcontrib>Hernandez, R</creatorcontrib><creatorcontrib>Lowell, E.C</creatorcontrib><title>Structural lumber from suppressed-growth ponderosa pine from northern Arizona</title><title>Forest products journal</title><description>Lumber was sawn from 150 suppressed-growth ponderosa pine trees, 6 to 16 inches in diameter, harvested near Flagstaff, Arizona. This paper presents grade recover and properties for dry 2 by 4's sawn from the logs and graded by a variety of structural grading systems. Flexural properties met or exceeded those listed in the National Design Specification. When graded as Light Framing 43 percent of the 2 by 4's made Standard and Better and as Structural Light Framing, 34 percent made No. 2 and better. Warp was the biggest factor limiting grade yield. About 7 percent of the lumber would make a machine stress-rated (MSR) lumber grade of 1450f, but with no established market such production is not recommended. If graded as laminating stock, about 8 percent of the lumber qualified as L3 or better. A comparison of the results from this study with those from a companion study indicates that appearance grades offer the highest value alternative for lumber produced from this resource.</description><subject>Analysis</subject><subject>Applied sciences</subject><subject>bending strength</subject><subject>construction materials</subject><subject>Degradation and preservation</subject><subject>Design specifications</subject><subject>Exact sciences and technology</subject><subject>Forest products industry</subject><subject>Forests</subject><subject>glulam</subject><subject>juvenile wood</subject><subject>Lumber</subject><subject>lumber grades</subject><subject>Lumber industry</subject><subject>Mechanical properties</subject><subject>Mechanical woodworking and drying</subject><subject>modulus of elasticity</subject><subject>modulus of rupture</subject><subject>Physical properties</subject><subject>Pinus ponderosa</subject><subject>Polymer industry, paints, wood</subject><subject>Production processes</subject><subject>Properties</subject><subject>Properties and testing</subject><subject>Simulation</subject><subject>small-diameter trees</subject><subject>Studies</subject><subject>suppressed-growth trees</subject><subject>trees</subject><subject>warp</subject><subject>Wood</subject><subject>Wood products</subject><subject>wood quality</subject><subject>Wood. 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Non wovens</subject><subject>yields</subject><issn>0015-7473</issn><issn>2376-9637</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNptj1tLxDAQhYsouK7-BovgYyWXNkkfl8UbrPiw7nOZNkm3S5vUSYvorzey-ygzcODwzcyZs2TBuBRZKbg8TxaE0CKTueSXyVUIB0KILARbJG_bCedmmhH6tJ-H2mBq0Q9pmMcRTQhGZy36r2mfjt5pgz5AOnbOHCnncdobdOkKux_v4Dq5sNAHc3PSZbJ7evxYv2Sb9-fX9WqTWU75lAFlVjMj69zkTOdR60IYIhlwUeTRUlRoKRtdKGKVbQQX0NC6BEFAaiL5Mrk77h3Rf84mTNXBz-jiyYrRXFAaO0LZEWqhN1XnrJ8QmtY4E5_1ztgu2isqWUmUYGXkH_7hY2kzdM2_A_enFBAa6C2Ca7pQjdgNgN8VLcuCl-ovyO2Rs-AraDEyuy0jlBOiCsVVzn8BAJCBGA</recordid><startdate>20071201</startdate><enddate>20071201</enddate><creator>Gorman, T.M</creator><creator>Green, D.W</creator><creator>Cisternas, A.G</creator><creator>Hernandez, R</creator><creator>Lowell, E.C</creator><general>Forest Products Society</general><scope>FBQ</scope><scope>IQODW</scope><scope>0U~</scope><scope>1-H</scope><scope>3V.</scope><scope>4T-</scope><scope>4U-</scope><scope>7ST</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X2</scope><scope>7XB</scope><scope>87Z</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>8FL</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FRNLG</scope><scope>F~G</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>L.-</scope><scope>L.0</scope><scope>L6V</scope><scope>M0C</scope><scope>M0K</scope><scope>M2O</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>S0X</scope><scope>SOI</scope></search><sort><creationdate>20071201</creationdate><title>Structural lumber from suppressed-growth ponderosa pine from northern Arizona</title><author>Gorman, T.M ; Green, D.W ; Cisternas, A.G ; Hernandez, R ; Lowell, E.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f313t-a12fd2e7b4e42d47b4b56e072a365442d816d77cd580f8fc636ac1b9a60a7d073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Analysis</topic><topic>Applied sciences</topic><topic>bending strength</topic><topic>construction materials</topic><topic>Degradation and preservation</topic><topic>Design specifications</topic><topic>Exact sciences and technology</topic><topic>Forest products industry</topic><topic>Forests</topic><topic>glulam</topic><topic>juvenile wood</topic><topic>Lumber</topic><topic>lumber grades</topic><topic>Lumber industry</topic><topic>Mechanical properties</topic><topic>Mechanical woodworking and drying</topic><topic>modulus of elasticity</topic><topic>modulus of rupture</topic><topic>Physical properties</topic><topic>Pinus ponderosa</topic><topic>Polymer industry, paints, wood</topic><topic>Production processes</topic><topic>Properties</topic><topic>Properties and testing</topic><topic>Simulation</topic><topic>small-diameter trees</topic><topic>Studies</topic><topic>suppressed-growth trees</topic><topic>trees</topic><topic>warp</topic><topic>Wood</topic><topic>Wood products</topic><topic>wood quality</topic><topic>Wood. 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This paper presents grade recover and properties for dry 2 by 4's sawn from the logs and graded by a variety of structural grading systems. Flexural properties met or exceeded those listed in the National Design Specification. When graded as Light Framing 43 percent of the 2 by 4's made Standard and Better and as Structural Light Framing, 34 percent made No. 2 and better. Warp was the biggest factor limiting grade yield. About 7 percent of the lumber would make a machine stress-rated (MSR) lumber grade of 1450f, but with no established market such production is not recommended. If graded as laminating stock, about 8 percent of the lumber qualified as L3 or better. A comparison of the results from this study with those from a companion study indicates that appearance grades offer the highest value alternative for lumber produced from this resource.</abstract><cop>Madison, WI</cop><pub>Forest Products Society</pub><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 0015-7473 |
| ispartof | Forest products journal, 2007-12, Vol.57 (12), p.42-47 |
| issn | 0015-7473 2376-9637 |
| language | eng |
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| source | EBSCOhost Business Source Complete |
| subjects | Analysis Applied sciences bending strength construction materials Degradation and preservation Design specifications Exact sciences and technology Forest products industry Forests glulam juvenile wood Lumber lumber grades Lumber industry Mechanical properties Mechanical woodworking and drying modulus of elasticity modulus of rupture Physical properties Pinus ponderosa Polymer industry, paints, wood Production processes Properties Properties and testing Simulation small-diameter trees Studies suppressed-growth trees trees warp Wood Wood products wood quality Wood. Paper. Non wovens yields |
| title | Structural lumber from suppressed-growth ponderosa pine from northern Arizona |
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