Thanks @MitchellMc for providing clear instructions and links to the materials.
The link to the 70mm treated pine decking is not working but Bunnings do sell these treated pines and I’ve purchased them to make the picnic table.
I did a bit of research (after making the table unfortunately) and found the following - the “APVMA implemented a number of restrictions on CCA that became
effective in March 2006. The main implementation affecting the public is that CCA is no longer used to treat timber for structures where there is frequent and intimate contact, such as playground equipment, picnic tables, handrails, decking boards, garden furniture and exterior seating.”
Appreciate any advice to my concerns, thanks!
They will be ACQ treated, which is alkaline Copper. This passes Australian safety standards from what I’m aware.
The only materials I’m aware of which are still using CCa treatment is fencing palings and possibly rails.
If you want to stay away from chemicals then stick to original Hardwoods. Just be prepared to pay more per meter. You also get durability though
I reached out to Bunnings head office customer resolutions before I saw your reply and was told the following:
”In regards to product 90 x 22mm 2.4m Decking H3 Treated Pine - I/N: 8032583. The timber buyer has stated ‘The decking in question is actually LOSP treated so essentially fine for a picnic table'”.
Sounds like either ACQ or LOSP is fine for a picnic table, which is great to know.
I can't recall the last time I saw pine decking treated with CCA, but it would have been many years ago. ACQ treated pine started becoming readily available in the early 2000s. You can rest assured that we switched to its use for items like decking as soon as regulations came into effect.
I'm not sure where "In-store team members would previously advise that it's CCA treated." is from. If you've been advised of this recently by a team member, I would be happy to contact the store to discuss with them to find out what the confusion surrounding treatment is. We certainly don't want to be telling customers a product has an arsenic-based treatment when it doesn't.
Commonly, decking would be treated with ACQ, but in this case, the buyer has replied that it is LOSP, which is equally safe to use.
You can paint directly over the treated pine, but Dulux 1Step Prep Primer, Sealer & Undercoat 500mL would assist its adhesion.
Thank you @MitchellMc! I’ve found this community to be incredibly helpful and it’s very much appreciated.
Have an awesome weekend 😃
Keep us updated, @patrick123; I can't wait to see your finished results!
Given lockdown in Sydney is ending in a couple of days, this table would be awesome to take to the local park for a picnic. I was at the park the other day and a family had lugged down their entire full-sized outdoor hardwood setting. It brought a smile to my face, but this would be much more convenient.