{"product_id":"3x12-no-1-better-green-rough-fir-dimensional-lumber","title":"3\" x 12\" #1 \u0026 Better Green Rough Fir 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\u003e3\" x 12\" #1 \u0026amp; Better Green Rough Fir Dimensional Lumber\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThis is a 3x12 in No. 1 \u0026amp; Better fir, sold green and rough sawn. It is a heavy plank and beam size in 16 and 20 ft lengths, used for concrete forming and shoring, landscape structures and exposed timber work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGreen and rough means it is not dried or planed.\u003c\/strong\u003e The board still holds its moisture, so it shrinks, and can twist or check, as it dries in place. The surface keeps its sawn texture and the finished dimensions vary from board to board, so check the size against your layout before you order. Contact us if you need a dimension confirmed.\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\u003eNo. 1 \u0026amp; Better grade fir, a grade with fewer and smaller defects than No. 2 and suited to heavier construction\u003c\/li\u003e\n\u003cli\u003eGreen, with a moisture content above 19%, so it is soft to cut and nail and costs less than kiln-dried stock\u003c\/li\u003e\n\u003cli\u003eRough sawn, keeping the texture left by the sawmill for an exposed, rustic look\u003c\/li\u003e\n\u003cli\u003e3 in. nominal thickness carries more load than a 2x12 over the same span\u003c\/li\u003e\n\u003cli\u003eNot pressure treated, so it is for dry, above-ground or temporary use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConcrete forming, shoring and temporary supports\u003c\/li\u003e\n\u003cli\u003eLandscape structures, ramps and heavy-duty platforms\u003c\/li\u003e\n\u003cli\u003eExposed beams, mantels and rustic timber features\u003c\/li\u003e\n\u003cli\u003eHeavy planking for sheds, barns and farm structures\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\u003e3x12 No. 1 \u0026amp; Better Fir, Green, Rough\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpecies\u003c\/th\u003e\n\u003ctd\u003eFir\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGrade\u003c\/th\u003e\n\u003ctd\u003eNo. 1 \u0026amp; Better\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal size\u003c\/th\u003e\n\u003ctd\u003e3 in. x 12 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable lengths\u003c\/th\u003e\n\u003ctd\u003e16 and 20 ft\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\"\u003eSurface\u003c\/th\u003e\n\u003ctd\u003eRough sawn, not planed\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\"\u003eRough-sawn lumber is not milled to a fixed finished size, so actual thickness and width vary by board and by sawmill. Grade and species are stamped on each piece and are the governing record for what you receive. Confirm the dimensions you need at the counter before you order.\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\u003eWhat does green rough mean?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eGreen means the board has not been kiln dried and holds moisture above 19%. Rough means it is sawn but not planed, so the surface keeps its sawmill texture. Expect shrinkage as it dries.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat does No. 1 and Better mean?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eIt is a visual grade. No. 1 \u0026amp; Better boards have fewer and smaller knots and defects than No. 2, and the grade can include higher grades above No. 1. It is a step up from the #2 \u0026amp; Better stock used for general framing.\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 3x12?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eIt varies. A rough-sawn 3x12 is not planed to a set finished size, so the actual thickness and width differ from board to board. 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\u003eWill it shrink or warp?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eYes, some. Green lumber loses moisture as it dries and can twist, cup or check. Stack it flat with spacers and keep it supported, or choose kiln-dried stock where a stable board matters.\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\u003eFor above-ground and temporary use, yes. It is not pressure treated, so it is not suited to ground contact or long-term wet exposure. Choose pressure treated lumber for those jobs.\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\/3x12-no-1-better-green-rough-fir-dimensional-lumber#product\",\"name\":\"3\\\" x 12\\\" #1 \u0026 Better Green Rough Fir Dimensional Lumber\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/3x12-no-1-better-green-rough-fir-dimensional-lumber\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Griff\"},\"category\":\"Hardware \u003e Building Materials \u003e Lumber \u0026 Sheet Stock\",\"description\":\"3x12 No. 1 \u0026 Better fir lumber, green and rough sawn. A heavy plank and beam size for forming and exposed work. 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