{"product_id":"4x4-no-2-better-fir-kdht-s4s-dimensional-lumber","title":"4\" x 4\" #2 \u0026 Better Fir KDHT 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\u003e4\" x 4\" #2 \u0026amp; Better Fir KDHT S4S Dimensional Lumber\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThis is a 4x4 in #2 \u0026amp; Better fir, kiln dried and heat treated (KDHT) and surfaced smooth on all four sides (S4S). It measures 3-1\/2 in. x 3-1\/2 in. actual and comes in 6, 8, 10 and 12 ft lengths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#2 \u0026amp; Better is the general framing grade.\u003c\/strong\u003e It is sound for structural and non-structural work, and it is the grade most framing plans call for. Span, load and local code decide the size you need, so confirm it with your building inspector or engineer. #2 \u0026amp; Better fir is not an appearance grade, so expect knots and natural character.\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. 2 \u0026amp; Better grade, a framing grade used for structural and non-structural work\u003c\/li\u003e\n\u003cli\u003eFir is a strong, stiff framing softwood that holds nails and screws well.\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 3-1\/2 in. x 3-1\/2 in. actual size\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\u003eWall studs, plates, joists and rafters\u003c\/li\u003e\n\u003cli\u003ePosts, headers and beams where the plan calls for #2\u003c\/li\u003e\n\u003cli\u003eGeneral framing and carpentry\u003c\/li\u003e\n\u003cli\u003eDecks, sheds and outbuildings\u003c\/li\u003e\n\u003cli\u003ePosts for decks, fences and pergolas (use pressure treated stock for ground contact)\u003c\/li\u003e\n\u003cli\u003eInterior structural framing, including single and multi-family homes and additions\u003c\/li\u003e\n\u003cli\u003eBarns, sheds, and commercial and industrial construction\u003c\/li\u003e\n\u003cli\u003eBracing and concrete forming\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\u003e4x4 No. 2 \u0026amp; Better 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\u003eNo. 2 \u0026amp; Better\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNominal size\u003c\/th\u003e\n\u003ctd\u003e4 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\u003e3-1\/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\u003e6, 8, 10 and 12 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\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. Span, load and local code decide where the lumber can be used, so confirm with your building inspector or engineer for structural work. #2 \u0026amp; Better fir is not an appearance grade. See also Griff's \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/Dimensional_Lumber_Grading_Guide.pdf?v=1672437576\" target=\"_blank\" rel=\"noopener\"\u003eDimensional Lumber Grading Guide\u003c\/a\u003e.\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 No. 2 and Better mean?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eIt is a visual framing grade. No. 2 and Better boards are sound for general structural use and can include higher grades above No. 2, so you get a consistent, reliable board.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eIs No. 2 and Better an appearance grade?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eNo. It is a structural grade, and knots and other natural characteristics are allowed.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat does KDHT mean?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\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\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eWhat is the actual size of a 4x4?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eA 4x4 measures 3-1\/2 in. x 3-1\/2 in. once surfaced. The 4 in. x 4 in. name is the nominal size from before the board was dried and planed.\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\/4x4-no-2-better-fir-kdht-s4s-dimensional-lumber#product\",\"name\":\"4\\\" x 4\\\" #2 \u0026 Better Fir KDHT S4S Dimensional Lumber\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/4x4-no-2-better-fir-kdht-s4s-dimensional-lumber\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Griff\"},\"category\":\"Hardware \u003e Building Materials \u003e Lumber \u0026 Sheet Stock\",\"description\":\"4x4 #2 \u0026 Better fir lumber, kiln dried and heat treated, surfaced four sides. Actual size 3-1\/2\\\" x 3-1\/2\\\". Sold in 6, 8, 10 and 12 ft lengths.\",\"material\":\"fir, kiln dried and heat treated\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Species\",\"value\":\"Fir\"},{\"@type\":\"PropertyValue\",\"name\":\"Grade\",\"value\":\"No. 2 \u0026 Better\"},{\"@type\":\"PropertyValue\",\"name\":\"Nominal size\",\"value\":\"4 in. x 4 in.\"},{\"@type\":\"PropertyValue\",\"name\":\"Actual size\",\"value\":\"3-1\/2 in. x 3-1\/2 in.\"},{\"@type\":\"PropertyValue\",\"name\":\"Available lengths\",\"value\":\"6, 8, 10 and 12 ft\"},{\"@type\":\"PropertyValue\",\"name\":\"Moisture content\",\"value\":\"Kiln dried, 19% maximum\"},{\"@type\":\"PropertyValue\",\"name\":\"Heat treatment\",\"value\":\"KD-HT, core temperature of at least 56 C for 30 minutes\"},{\"@type\":\"PropertyValue\",\"name\":\"Surfacing\",\"value\":\"S4S, surfaced on four sides\"},{\"@type\":\"PropertyValue\",\"name\":\"Pressure treated\",\"value\":\"No\"}],\"isRelatedTo\":[{\"@type\":\"Product\",\"name\":\"4\\\" x 4\\\" #2 Grade Fir Dimensional Lumber\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/4x4-no-2-better-fir-kdht-s4s-dimensional-lumber#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does No. 2 and Better mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is a visual framing grade. No. 2 and Better boards are sound for general structural use and can include higher grades above No. 2, so you get a consistent, reliable board.\"}},{\"@type\":\"Question\",\"name\":\"Is No. 2 and Better an appearance grade?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is a structural grade, and knots and other natural characteristics are allowed.\"}},{\"@type\":\"Question\",\"name\":\"What does KDHT mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"KDHT 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.\"}},{\"@type\":\"Question\",\"name\":\"What is the actual size of a 4x4?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A 4x4 measures 3-1\/2 in. x 3-1\/2 in. once surfaced. 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Choose pressure treated lumber for buried posts and outdoor structures.\"}}]}]}\u003c\/script\u003e","brand":"Griff","offers":[{"title":"6 ft","offer_id":67879541735743,"sku":"04042FK406x","price":12.0,"currency_code":"CAD","in_stock":true},{"title":"8 ft","offer_id":67879835631935,"sku":"04042FK408","price":13.29,"currency_code":"CAD","in_stock":true},{"title":"10 ft","offer_id":67879835664703,"sku":"04042FK410","price":19.99,"currency_code":"CAD","in_stock":true},{"title":"12 ft","offer_id":67879835697471,"sku":"04042FK412","price":23.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/4x4_2_c5513d2b-5afd-4db3-817a-db1b61301bb8.png?v=1793120270","url":"https:\/\/griffbuildingsupplies.com\/products\/4x4-no-2-better-fir-kdht-s4s-dimensional-lumber","provider":"Griff Building Supplies","version":"1.0","type":"link"}