Viridian III Technical Specification OPW1 [As Published] · 142008.256

                                                                     VIRIDIAN III - Landscape Works
End splits wider than 1mm
Included bark
Borer holes larger than 3mm
Additionally permitted defects shall not cover more than 15% of the top face.

7.2.5 PRESERVATIVE TREATMENT
Treatment, natural durability classes and combinations thereof shall conform to AS 1604,
TUMA (Timber Utilisation and Marketing Act Qld 1987) and TMA (Timber Marketing Act
NSW 1977). Sapwood shall be treated to Level H3 in accordance with TUMA with copper
azole. A certification of treatment shall be provided.

7.2.6 TOLERANCES
Unless noted otherwise, the actual cross sectional dimensions of the timber may vary from
the dimensions stated by the following;
width                +_ 3mm
thickness            -0, +2mm
length               0
length (cut to size) +- 5mm

7.3    DECKING TIMBER
Hardwood as per ‘Gatton Sawmilling Company - Deckwood’ profile or EQUIVALENT. Place
in long lengths with no joins in tranverse section of decking.

7.3.1 DECKING STRESS GRADE
F17 on underside. (The appearance requirement for the upper surface is superior to grade
F17)

7.3.2 SURFACE FINISH
The decking shall be gauged on the bottom with the sound sawn face being exposed
uppermost.

7.3.3 DECKING CROSS SECTION
Pencil rounded top edges, receiving scallop from lower side, wedge shaped sides.

7.3.4 DECKING FASTENING
Decking shall be fastened to joist with two fixings. Fixings shall be Galvanised steel No 14
type 17 bugle headed batten screws. Space distances from ends and edges as shown on
the drawing. Screw holes must be both predrilled and precountersunk. Pre-drill with 4.5mm
bit and countersink to allow the bugle head to be flush with the top of the timber. Do not
over countersink as this assists water entry. Screws must be pre-greased to facilitate
driving. Screws may need to be re-driven at completion of the maintenance period after
shrinkage has taken place.


                                     END OF SECTION




EDAW Aust                            Page 24                       February 2008