{"product_id":"6x6-utility-douglas-fir-green-s4s-dimensional-lumber","title":"6\" x 6\" Utility Douglas Fir Green S4S Dimensional Lumber","description":"\u003cstyle\u003e\n.pb-wrap{--pb-line:#e1e3e5;--pb-head:#f6f6f7;max-width:100%}\n.pb-wrap .pb-intro{margin-bottom:20px}\n.pb-acc{border:1px solid var(--pb-line);border-radius:8px;margin:0 0 8px;overflow:hidden}\n.pb-acc\u003esummary{cursor:pointer;padding:14px 16px;font-weight:600;line-height:1.35;\n list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.pb-acc\u003esummary::-webkit-details-marker{display:none}\n.pb-acc\u003esummary::marker{content:\"\"}\n.pb-acc\u003esummary::after{content:\"+\";font-size:22px;font-weight:400;line-height:1;flex:0 0 auto}\n.pb-acc[open]\u003esummary::after{content:\"\\2212\"}\n.pb-acc[open]\u003esummary{border-bottom:1px solid var(--pb-line);background:var(--pb-head)}\n.pb-acc\u003esummary:hover{background:var(--pb-head)}\n.pb-acc .pb-body{padding:16px}\n.pb-acc .pb-body\u003e:first-child{margin-top:0}\n.pb-acc .pb-body\u003e:last-child{margin-bottom:0}\n.pb-q{border:0;border-bottom:1px solid var(--pb-line);border-radius:0;margin:0}\n.pb-q:last-child{border-bottom:0}\n.pb-q\u003esummary{padding:12px 0;font-weight:600}\n.pb-q[open]\u003esummary{background:transparent;border-bottom:0}\n.pb-q\u003esummary:hover{background:transparent;text-decoration:underline}\n.pb-q .pb-body{padding:0 0 12px}\n.pb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.pb-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}\n.pb-table th,.pb-table td{border:1px solid var(--pb-line);padding:8px 10px;\n text-align:left;vertical-align:top}\n.pb-table thead th{background:var(--pb-head)}\n.pb-table caption{caption-side:top;text-align:left;font-weight:600;padding:0 0 8px}\n.pb-note{font-size:13px;opacity:.75;margin-top:16px}\n.pb-wrap a{color:#3b82f6}\n.pb-wrap a:hover{color:#2563eb}\n\u003c\/style\u003e\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003e6\" x 6\" Utility Douglas Fir Green S4S Dimensional Lumber\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThis is a 6x6 in Utility Douglas fir, sold green and surfaced smooth on all four sides (S4S). It measures about 5-5\/8 in. square, shrinking toward 5-1\/2 in. as it dries and comes in a 12 ft length.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUtility grade is an economy grade, not structural framing grade.\u003c\/strong\u003e It is graded on usefulness and low cost rather than strength or appearance. Published design values for Utility grade apply only to 2 in. x 4 in. lumber, so use it for blocking, bracing, forming and general work, and choose a #2 and better board for structural members. This stock is sold green, so it shrinks as it dries and can twist or check.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003eUtility grade, an economy grade that keeps the cost of general-purpose lumber down\u003c\/li\u003e\n\u003cli\u003eDouglas fir is among the strongest and stiffest of the common softwood framing species.\u003c\/li\u003e\n\u003cli\u003eGreen, with a moisture content above 19%, so it is soft to cut and nail\u003c\/li\u003e\n\u003cli\u003eSurfaced smooth on all four sides (S4S) for square edges and consistent faces\u003c\/li\u003e\n\u003cli\u003eNot pressure treated, so it is for dry, above-ground use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlocking, cribbing and bracing\u003c\/li\u003e\n\u003cli\u003eConcrete forming, shoring and temporary supports\u003c\/li\u003e\n\u003cli\u003eCrating, pallets and equipment frames\u003c\/li\u003e\n\u003cli\u003eLandscape and shop projects above ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eSpecifications\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eProduct Specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct\u003c\/th\u003e\n\u003ctd\u003e6x6 Utility Douglas fir, Green, S4S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpecies\u003c\/th\u003e\n\u003ctd\u003eDouglas fir\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGrade\u003c\/th\u003e\n\u003ctd\u003eUtility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal size\u003c\/th\u003e\n\u003ctd\u003e6 in. x 6 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable length\u003c\/th\u003e\n\u003ctd\u003e12 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eActual size, green\u003c\/th\u003e\n\u003ctd\u003eabout 5-5\/8 in. square, shrinking toward 5-1\/2 in. as it dries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMoisture content\u003c\/th\u003e\n\u003ctd\u003eGreen, above 19%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSurfacing\u003c\/th\u003e\n\u003ctd\u003eS4S, surfaced on four sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePressure treated\u003c\/th\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eGrade, species and moisture marks are stamped on each board and are the governing record for the piece you receive. Span, load and local code decide where the lumber can be used, so confirm with your building inspector or engineer for structural work. Green lumber changes size as it dries.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eCan I use utility grade for posts or framing?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eNot for structural or load-bearing members unless your building inspector or engineer accepts it. Utility is graded below No. 2 and Standard. Use a #2 and better board for posts, studs and beams, and keep Utility for stakes, bracing and forming.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat is Douglas fir?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eDouglas fir is a western softwood prized for its strength and stiffness. It is one of the most common species for heavy framing, beams and posts.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat does green lumber mean?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eGreen means the board has not been kiln dried and holds moisture above 19%. It is easy to cut and nail, but it shrinks as it dries and can twist, cup or check.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat is the actual size of a green 6x6?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eGreen stock is surfaced a little larger than dry stock, at about 5-5\/8 in. square, shrinking toward 5-1\/2 in. as it dries. Contact us if a specific dimension matters for your project.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eCan I use it outside?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eOnly where it stays dry and above ground, or for short-term use. It is not pressure treated, so it will rot in ground contact or constant wet. Choose pressure treated lumber for buried posts and outdoor structures.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/6x6-utility-douglas-fir-green-s4s-dimensional-lumber#product\",\"name\":\"6\\\" x 6\\\" Utility Douglas Fir Green S4S Dimensional Lumber\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/6x6-utility-douglas-fir-green-s4s-dimensional-lumber\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Griff\"},\"category\":\"Hardware \u003e Building Materials \u003e Lumber \u0026 Sheet Stock\",\"description\":\"6x6 Utility Douglas fir lumber, green, surfaced four sides. 12 ft length. 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Contact us if a specific dimension matters for your project.\"}},{\"@type\":\"Question\",\"name\":\"Can I use it outside?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Only where it stays dry and above ground, or for short-term use. It is not pressure treated, so it will rot in ground contact or constant wet. 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