03 9465 9875
Silvertop Ash decking: sizes, lengths and prices
| Size | Lengths | Price | Availability |
|---|---|---|---|
| 135 × 19 mm | Random length | $17.50 per lineal metre | in stock |
| 86 × 19 mm | Random length | $8.95 per lineal metre | in stock |
Sold in random lengths, cut to suit. Prices are our website prices on 14 October 2026, per lineal metre; a 20 m² deck needs about 140 lineal metres of 135 mm board or 225 of 86 mm, plus 10% for cuts.
What Silvertop Ash decking is like
Silvertop Ash, Eucalyptus sieberi, is cut in eastern Victoria, southern NSW and north-east Tasmania, and is the lightest board in our range at about 850 kg/m³. It is pale brown, sometimes with a pink tinge, and straight-grained, so it reads as a pale, even deck. WoodSolutions puts its seasoned hardness at 9.7 kN, above Blackbutt and Merbau.
Its weak points are durability and movement. The Queensland Government tables rate the heartwood Class 2 above ground, the lowest in our decking range, and not termite resistant, and it has the highest shrinkage of our decking species, so it needs its gaps and a sealed back face. Priced right, it is a good deck for a dry, well-ventilated spot.
Where it suits
Use it for a raised, open deck that dries quickly and where you want a pale timber at a lower price than Blackbutt. Keep it off the ground, out of permanent shade, and away from garden beds. Bushfire: our 19 mm Silvertop Ash is rated for decking up to BAL-19; BAL-29 needs a 22 mm board, or Spotted Gum, Blackbutt or Merbau in 19 mm.
Fixing and finishing
Pre-drill, two screws per board per joist, 450 mm joist centres, and keep the full 4–5 mm gap because of the shrinkage. Oil all faces before laying, including the back and ends, and recoat each spring. Intergrain Universal Timber Oil or CUTEK Extreme CD50; screws in decking accessories.
The same timber for other jobs
- Blackbutt decking – the other pale board, Class 1 and BAL-29
- Hardwood decking – all six species side by side
Compare the species
Our decking timber comparison puts hardness, durability, bushfire rating and price per metre for all six hardwoods on one page; Merbau decking is the budget alternative.
Questions we get asked
How much does Silvertop Ash decking cost?
On our website on 14 October 2026, 86 × 19 mm is $8.95 per lineal metre and 135 × 19 mm $17.50 per lineal metre.
Is Silvertop Ash durable?
Class 2 above ground in the Queensland Government tables, a class below Spotted Gum, Blackbutt and Merbau, and the heartwood is not termite resistant. It lasts well on a raised deck that dries out; it is the wrong board for a damp, shaded one.
Is it BAL rated?
Our 19 mm boards are rated for decking up to BAL-19. BAL-29 needs 22 mm Silvertop Ash or one of the listed species in 19 mm.
Why does it move more than other decking?
Its shrinkage figures are the highest of our decking timbers (WoodSolutions: 10.6% tangential), so it gains and loses more width with the seasons. The standard gaps allow for it.
Pickup and delivery
Stocked at 170 Settlement Road, Thomastown, Mon–Fri 7 am–4:30 pm and Sat 9 am–1 pm. We pack and load it for you, or deliver across Melbourne and regional Victoria; delivery is quoted with the order. Call (03) 9465 9875 with your sizes and we will work out the lineal metres and the price.
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