Futurewood CleverDeck Xtreme in Light Oak

Domestic table: maximum centre-to-centre at 90 deg to the joists, using a minimum of three joists; closer spacing (400 or 300 mm) is stronger. The guide gives domestic figures only.

Boards laid at 45 deg to the joists. Same table: 400 mm at 60 deg and 250 mm at 30 deg to the joists.

Gap set by the Combo Deck Clip: 6 mm in this guide's ventilation text and its cover figures (144 mm for the 138 mm board, 191 mm for the 185 mm board) and on the web guide; the same guide's fastening text still says 'automatic spacing of 5.5mm (+/- manufacturing tolerances)' and the March 2023 edition says 5.5 mm everywhere (143.5/190.5 mm cover).

The fixing table lists 'minimum spacing between boards (side to side) 2-3mm' (the guide does not say what it refers to; the BAL clip gives a 2-3 mm gap). 5 mm to a side wall running parallel to the boards.

Butt joins are discouraged (preferred method is a breaker board); if used, boards up to 3 m only, over a double joist or cleat (minimum 90 x 45 mm) with 4 Combo clips per join; breaker and border boards should not exceed 3 m.

Minimum ground clearance over well-drained ground (guide: 300 mm is ideal "between the boards and the surface beneath the deck"; FAQ says 100 mm above well-drained soil or screenings). Over concrete the minimum is 25 mm with no water pooling and boards fixed to a batten of at least 25 mm. Do not seal off the deck ends; keep the area under the deck dry and free of vegetation.

Per fixing: Futurewood Combo Deck Clip (T-100 timber / M-100 metal) -> timber/steel/aluminium; Futurewood Locking Clip (LT-20 timber / LM-20 metal) -> timber/steel/aluminium; Futurewood Starting/Finishing Clip (SFT-20 timber / SFM-20 metal) -> timber/steel/aluminium; Futurewood BAL Clip (BAL-100) -> timber/steel/aluminium; Face screws through pre-drilled, countersunk holes -> timber

Spec page: test 'AS 3959-2009', result 'Passed BAL-29'; FAQ says Xtreme 'has been tested and passed the BAL29 level' and the BAL 29 page says suitable for BAL Low, 12.5, 19 and 29 (no BAL-40/FZ claim). The standard named is AS 3959-2009; AS 1530.8.1 is not mentioned and no laboratory, report number or tested configuration is published.

Install guide: the BAL clip (BAL-100, nominal 2 mm gap) 'is a special clip designed to give a 2-3mm gap between boards as required in a high bush fire zone'; the product page says it is for BAL-rated decks where the gap needs to be 3 mm or less.

Xtreme column of the product comparison chart ('Slip Resistance Level: P2'; Original and Eco-Pro show P5). No test method, slider, laboratory or report is named (the P-class notation suggests AS 4586 pendulum, but the site does not say). FAQ describes the standard wood-grain finish as 'mid-range slip resistance when either wet or dry'.

'Domestic installations'; runs from the date of original purchase from Futurewood or an authorised dealer.

Commercial installations; same start date.

Covers 'excess colour variation (outside of the original light and dark colour shades) caused by the natural environment': 10 years domestic, 7 years commercial. There is no separate stain warranty.