{"product_id":"merbau-decking-90x19-set-length","title":"Merbau Decking 90x19 Set Length","description":"\u003cp\u003eMerbau decking, 90 × 19 mm in set lengths from 1.8 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:\u003c\/strong\u003e set lengths from 1.8 m to 5.7 m in 300 mm steps; also sold in \u003ca href=\"\/products\/merbau-decking-90x19-random\"\u003erandom 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 3–4 mm between boards at installation for 90 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 3.5 mm gap, each m² takes about 10.7 lineal metres, so a 20 m² deck needs about 215 lineal metres plus about 10% for offcuts, and roughly 48 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\u003ch2 class=\"isSelectedEnd\"\u003e\u003cstrong\u003e90 x 19mm Merbau Set Length\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003eis a premium Australian favourite, renowned for its exceptional durability, natural beauty and long-lasting performance. Featuring rich brown tones and distinctive timber grain, Merbau is ideal for creating stylish outdoor entertaining areas, decks, boardwalks, screening and other above-ground applications.\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003eEach board is kiln-dried for enhanced stability, reducing movement after installation while providing excellent resistance to everyday wear and the harsh Australian climate. Available with a smooth face and reeded reverse, 90 x 19mm Merbau offers flexibility in installation while maintaining a premium finish.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003eKiln-Dried for improved stability and reduced movement\u003c\/li\u003e\n\u003cli\u003eStandard and Better grade Merbau hardwood\u003c\/li\u003e\n\u003cli\u003eDressed All Round (DAR) finish\u003c\/li\u003e\n\u003cli\u003eClass 1 Durability (Above Ground)\u003c\/li\u003e\n\u003cli\u003eNaturally termite resistant\u003c\/li\u003e\n\u003cli\u003eSuitable for decking, screening, fencing and gates\u003c\/li\u003e\n\u003cli\u003eRich brown colour with attractive natural grain\u003c\/li\u003e\n\u003cli\u003eSmooth face with reeded reverse\u003c\/li\u003e\n\u003cli\u003eReady to oil, stain or leave to naturally weather\u003c\/li\u003e\n\u003cli\u003ePre-oiled option available (final top coat recommended after installation)\u003c\/li\u003e\n\u003cli\u003eAvailable in random lengths\u003c\/li\u003e\n\u003cli\u003eSuitable for BAL-29 bushfire-prone areas\u003c\/li\u003e\n\u003cli\u003eComplies with Australian Standard AS3959\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003eMerbau is naturally stable and highly durable, making it one of Australia's most trusted hardwoods for outdoor projects. To preserve its rich colour and maximise service life, we recommend applying a quality decking oil or timber sealer after installation and as part of ongoing maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Most decks are laid smooth face up with the reeded side down, though WoodSolutions notes either face can be used.\u003c\/p\u003e\n","brand":"Greenhill Timbers","offers":[{"title":"5.7m","offer_id":68913426300962,"sku":"GHT-11414","price":49.02,"currency_code":"AUD","in_stock":true},{"title":"5.4m","offer_id":68913426333730,"sku":"GHT-11413","price":42.12,"currency_code":"AUD","in_stock":true},{"title":"5.1m","offer_id":68913426366498,"sku":"GHT-11412","price":37.74,"currency_code":"AUD","in_stock":true},{"title":"4.8m","offer_id":68913426399266,"sku":"GHT-11411","price":32.78,"currency_code":"AUD","in_stock":true},{"title":"4.5m","offer_id":68913426432034,"sku":"GHT-11410","price":30.78,"currency_code":"AUD","in_stock":true},{"title":"4.2m","offer_id":68913426464802,"sku":"GHT-11409","price":28.98,"currency_code":"AUD","in_stock":true},{"title":"3.9m","offer_id":68913426497570,"sku":"GHT-11408","price":25.74,"currency_code":"AUD","in_stock":true},{"title":"3.6m","offer_id":68913426530338,"sku":"GHT-11407","price":24.84,"currency_code":"AUD","in_stock":true},{"title":"3.3m","offer_id":68913426563106,"sku":"GHT-11406","price":21.78,"currency_code":"AUD","in_stock":true},{"title":"3.0m","offer_id":68913426595874,"sku":"GHT-11405","price":19.44,"currency_code":"AUD","in_stock":true},{"title":"2.7m","offer_id":68913426628642,"sku":"GHT-11404","price":16.01,"currency_code":"AUD","in_stock":true},{"title":"2.4m","offer_id":68913426661410,"sku":"GHT-11403","price":14.25,"currency_code":"AUD","in_stock":true},{"title":"2.1m","offer_id":68913426694178,"sku":"GHT-11402","price":10.5,"currency_code":"AUD","in_stock":true},{"title":"1.8m","offer_id":68913426726946,"sku":"GHT-11401","price":9.54,"currency_code":"AUD","in_stock":true},{"title":"1","offer_id":68913426759714,"sku":"GHT-11400","price":5.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3981\/5970\/files\/Merbau90x19_setlength.png?v=1792367606","url":"https:\/\/greenhilltimbers.com.au\/products\/merbau-decking-90x19-set-length","provider":"Greenhill Timbers","version":"1.0","type":"link"}