{"product_id":"merbau-decking-140x19-long-length-random","title":"Merbau Decking 140x19 Long Length Random","description":"\u003cp\u003eMerbau decking, 140 × 19 mm in long random lengths from 4.2 m to 5.7 m: a kiln-dried, Standard and Better grade imported hardwood with a smooth face and reeded reverse, Class 1 durable above ground, and on the AS 3959 bushfire-resisting timber list for decks up to BAL-29.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLengths: long random lengths from 4.2 m to 5.7 m, sold per lineal metre, for long runs with fewer end joins; also sold in \u003ca href=\"\/products\/merbau-decking-140x19-random\"\u003e1.8 to 5.7 m random\u003c\/a\u003e and \u003ca href=\"\/products\/merbau-timber-decking-set-lengths\"\u003eset lengths\u003c\/a\u003e\u003c\/strong\u003e random lengths from 1.8 m to 5.7 m, usually the better price per metre; also sold in \u003ca href=\"\/products\/merbau-timber-decking-set-lengths\"\u003eset lengths\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimber:\u003c\/strong\u003e Merbau (\u003cem\u003eIntsia bijuga\u003c\/em\u003e and \u003cem\u003eI. palembanica\u003c\/em\u003e), imported from Southeast Asia and the Pacific; orange-brown when cut, darkening with age; about 830–860 kg\/m³, Janka hardness 8.5 kN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Class 1 above ground, which the Queensland Government rates at more than 40 years’ expected life; the heartwood is termite resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushfire:\u003c\/strong\u003e on the AS 3959 list of bushfire-resisting timbers, so it can be used for decking up to BAL-29 (BAL-40 and Flame Zone need tested systems)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJoist spacing:\u003c\/strong\u003e 450 mm centres, as WoodSolutions recommends for decking; its deck design guide allows up to 500 mm for 19 mm hardwood, or 350 mm if the boards run at 45°\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGaps:\u003c\/strong\u003e 4–5 mm between boards at installation for 140 mm seasoned hardwood (WoodSolutions deck design guide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow much for a deck:\u003c\/strong\u003e with a 4.5 mm gap, each m² takes about 6.9 lineal metres, so a 20 m² deck needs about 140 lineal metres plus about 10% for offcuts, and roughly 31 fixings per m² on 450 mm joists\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow decks:\u003c\/strong\u003e under 400 mm off the ground, WoodSolutions suggests 5–6 mm gaps and at least 40 mm between the deck and the house, for airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixing:\u003c\/strong\u003e two fixings per board at every joist, at least 12 mm from edges and ends. Pre-drill: WoodSolutions notes Merbau tends to split unless pre-bored. Use stainless steel within 1 km of the coast or 1 m of a pool. See our \u003ca href=\"\/collections\/decking-accessories\"\u003edecking screws\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReeded reverse:\u003c\/strong\u003e WoodSolutions says either face can go up. Reeds add grip across the board but hold moisture, so keep a reeded-up deck clean in damp spots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTannin:\u003c\/strong\u003e Merbau can bleed tannin and gum that stains concrete, paving and brickwork. Seal all faces and cut ends, and to oil new boards straight away, draw the tannin out first with \u003ca href=\"\/products\/intergrain-ultraprep-tannin-oil-remover\"\u003eIntergrain UltraPrep Tannin \u0026amp; Oil Remover\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinishing:\u003c\/strong\u003e coat every face and cut end, ideally before fixing, then recoat at least once a year or as the oil maker directs (WoodSolutions); left bare, it weathers to silver-grey. Oils we stock: \u003ca href=\"\/products\/cutek-oil-extreme-cd50\"\u003eCUTEK CD50\u003c\/a\u003e, \u003ca href=\"\/products\/intergrain-universal-timber-oil\"\u003eIntergrain Universal Timber Oil\u003c\/a\u003e or \u003ca href=\"\/products\/sceneys-timber-decking-oil\"\u003eSceney’s Timber Decking Oil\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAt Greenhill:\u003c\/strong\u003e stocked at 170 Settlement Road, Thomastown, with pickup or delivery across Melbourne and regional Victoria. Compare species on our \u003ca href=\"\/collections\/timber-decking\"\u003ehardwood decking\u003c\/a\u003e page.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompare every size, length and price in our \u003ca href=\"\/collections\/merbau\"\u003eMerbau decking range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eMerbau decking 140 × 19 mm in long random lengths, 4.2 m to 5.7 m only. The same kiln-dried Standard and Better grade board as our \u003ca href=\"\/products\/merbau-decking-140x19-random\"\u003estandard random lengths\u003c\/a\u003e, sorted for the long end of the pack, so a wide deck, a boardwalk or a long run along a pool can be laid with far fewer end joins. Sold per lineal metre at $12.50.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBoard:\u003c\/strong\u003e 140 × 19 mm, smooth face with a reeded reverse, kiln-dried, Standard and Better grade Merbau (\u003cem\u003eIntsia bijuga\u003c\/em\u003e). Orange-brown when cut and darkening with age, about 830 to 860 kg\/m³, Janka hardness 8.5 kN.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurability and bushfire:\u003c\/strong\u003e Class 1 durable above ground with termite-resistant heartwood, and on the AS 3959 list of bushfire-resisting timbers, accepted for decks up to BAL-29.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much to order:\u003c\/strong\u003e at 140 mm wide with a 4 mm gap, allow about 7 lineal metres per square metre of deck, plus 5 to 10% for cutting. Joists at 450 mm centres, or 350 mm if the boards run at 45 degrees.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinishing:\u003c\/strong\u003e Merbau bleeds tannin for the first few months, so wash the boards down and oil every face before fixing. We stock \u003ca href=\"\/products\/cutek-oil-extreme-cd50\"\u003eCUTEK CD50\u003c\/a\u003e and \u003ca href=\"\/products\/intergrain-universal-timber-oil\"\u003eIntergrain Universal Timber Oil\u003c\/a\u003e, and the \u003ca href=\"\/collections\/decking-accessories\"\u003escrews, joist hangers and stirrups\u003c\/a\u003e for the frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther options:\u003c\/strong\u003e \u003ca href=\"\/products\/merbau-timber-decking-set-lengths\"\u003e140 × 19 set lengths\u003c\/a\u003e from 1.0 to 5.7 m, \u003ca href=\"\/products\/merbau-decking-90x19-random\"\u003e90 × 19 random\u003c\/a\u003e, or \u003ca href=\"\/collections\/timber-decking\"\u003eall hardwood decking\u003c\/a\u003e. Stocked at 170 Settlement Road, Thomastown, with pickup or delivery across Melbourne and regional Victoria. Call (03) 9465 9875 with your deck size and we will work out the metres.\u003c\/p\u003e\n","brand":"Greenhill Timbers","offers":[{"title":"Default Title","offer_id":68913237721122,"sku":"MB.D.140-1-3","price":12.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3981\/5970\/files\/merbau-decking-140x19-long-length-random-4-2-5-7m.png?v=1792367422","url":"https:\/\/greenhilltimbers.com.au\/products\/merbau-decking-140x19-long-length-random","provider":"Greenhill Timbers","version":"1.0","type":"link"}