Browse Forums DIY, Home Maintenance & Repair Re: Building a low level deck 3Dec 28, 2023 8:35 am Langham Homes Hamid2868 I'm planning to build a low-to-the-ground deck near my swimming pool, and I'm all about using timber that's good for being close to the ground. I know people usually go for 2 pieces of 90x45 timbers for the bearers, but I found this H4-rated 90x90 on the Bunnings site. https://www.bunnings.com.au/90-x-90mm-3-6m-post-f7-h4-treated-pine-premium-kd_p8422821 Can I swap it for the 2x 90x45? I get that laminated timber is usually sturdier, but those 90x45 ones aren't H4. And if I use the 90x90, to keep the deck solid (no bouncy), what's the max span I should aim for with the bearers and joists? Hi Hamid, 90x90 H4 is dine to use for the bearers, span 1500 max 90x45 joists 1800 Max. If near a pool and clearance above ground is less than 400mm, better off using the Extreme Joist. They're pre primes H4 treated. Thanks. I was thinking of using either Extreme Joist or LOWDECK timbers for joists. Any idea what sets them apart and which one's better? Also, heard about laminating two LOWDECK 90x45 timbers to form bearers. Wondering if it's better to go with laminating two 90x45 H4 timbers or just stick to a good 90x90 solid timber. Any thoughts? Thanks! I'm spoke to the builder I'm not sure if this is all true but basically went along the lines of they considered all options and if I was to compact and fill it… 2 7489 Those span tables can be pushed a little for a low deck if you dont mind a little flex. Last deck I did, I pushed it a little and it was still rock solid - no noticeable… 6 14067 4 6366 |