{"product_id":"2x4-utility-3-fir-dimensional-lumber","title":"2\" x 4\" Utility\/#3 Grade 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\n\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003e2\" x 4\" Utility\/#3 Grade Fir Dimensional Lumber\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThis is a 2x4 in Utility\/#3 grade fir, kiln dried and heat treated (KDHT) and surfaced smooth on all four sides (S4S). It measures 1-1\/2 in. x 3-1\/2 in. actual and comes in 8, 10, 12 and 16 ft lengths.\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 appearance or strength, so it suits blocking, bracing, forming, crating and general jobs where a #2 or better board is not needed. For load-bearing framing, choose our \u003ca href=\"https:\/\/griffbuildingsupplies.com\/products\/2x4x8-fir-dimensional-lumber\" rel=\"noopener\" target=\"_blank\"\u003e2 x 4 #2 Grade Fir Dimensional Lumber\u003c\/a\u003e and confirm what your building inspector requires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003eUtility\/#3 grade fir, an economy grade that keeps the cost of general-purpose 2x4 stock down\u003c\/li\u003e\n\u003cli\u003eKiln dried to 19% moisture content or less, so it arrives drier and more stable than green lumber\u003c\/li\u003e\n\u003cli\u003eHeat treated (KD-HT) to a core temperature of at least 56 C for a minimum of 30 minutes\u003c\/li\u003e\n\u003cli\u003eSurfaced smooth on all four sides (S4S) for a consistent 1-1\/2 in. x 3-1\/2 in. actual size\u003c\/li\u003e\n\u003cli\u003eNot pressure treated, so keep it dry and out of ground contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlocking, bridging and bracing between framing members\u003c\/li\u003e\n\u003cli\u003eTemporary framing, concrete form backing and job-site bracing\u003c\/li\u003e\n\u003cli\u003eCrating, pallets and shipping frames\u003c\/li\u003e\n\u003cli\u003eGarage shelving, workbench frames and shop projects\u003c\/li\u003e\n\u003cli\u003eShort cut-offs and fillers where grade and appearance do not matter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc\" open=\"\"\u003e\n\u003csummary\u003eSpecifications\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\n\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\u003e2x4 Utility\/#3 Fir, KDHT, S4S\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\u003eUtility\/#3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal size\u003c\/th\u003e\n\u003ctd\u003e2 in. x 4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eActual size\u003c\/th\u003e\n\u003ctd\u003e1-1\/2 in. x 3-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable lengths\u003c\/th\u003e\n\u003ctd\u003e8, 10, 12 and 16 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMoisture content\u003c\/th\u003e\n\u003ctd\u003eKiln dried, 19% maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHeat treatment\u003c\/th\u003e\n\u003ctd\u003eKD-HT, core temperature of at least 56 C for 30 minutes\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\n\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eGrade, species and heat-treatment marks are stamped on each board and are the governing record for the piece you receive. KD-HT is explained by the Western Wood Products Association in this FAQ. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc\"\u003e\n\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eCan I use utility grade for framing?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eNot for load-bearing framing unless your building inspector or engineer accepts it. Utility is graded below No. 2 and Standard. Use a #2 and better 2x4 for wall studs, plates, joists and rafters, and keep Utility\/#3 for blocking, bracing, forming and general work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eWhat does KDHT mean?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eKDHT means kiln dried and heat treated. The board is dried to 19% moisture content or less and heated to a core temperature of at least 56 C for a minimum of 30 minutes. It is a heat process, not a chemical preservative treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eWhat is the actual size of a 2x4?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eA 2x4 measures 1-1\/2 in. x 3-1\/2 in. once surfaced. The 2 in. x 4 in. name is the nominal size from before the board was dried and planed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eWhat does S4S mean?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eS4S means surfaced on four sides. All four faces are planed smooth, so the board has square, consistent edges and no rough-sawn surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\n\u003csummary\u003eCan I use it outside?\u003c\/summary\u003e\n\u003cdiv class=\"pb-body\"\u003e\n\u003cp\u003eOnly for short-term or covered use. It is not pressure treated, so it will rot in ground contact or constant wet. For outdoor and ground-contact jobs, choose pressure treated lumber.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Griff","offers":[{"title":"8 ft","offer_id":67829541208383,"sku":"02043FK408","price":2.89,"currency_code":"CAD","in_stock":true},{"title":"10 ft","offer_id":67829541241151,"sku":"02043FK410","price":3.39,"currency_code":"CAD","in_stock":true},{"title":"12 ft","offer_id":67829541273919,"sku":"02043FK412","price":4.07,"currency_code":"CAD","in_stock":true},{"title":"16 ft","offer_id":67829541306687,"sku":"02043FK416","price":6.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/utill.jpg?v=1792608321","url":"https:\/\/griffbuildingsupplies.com\/fa\/products\/2x4-utility-3-fir-dimensional-lumber","provider":"Griff Building Supplies","version":"1.0","type":"link"}