Browse Forums Landscape & Garden Design 1 Aug 06, 2014 3:48 pm Hello, We are planning a landscaping job on our very sloped block in outer-east Melbourne which will involve putting in 3 tiers of retaining walls, each 4 sleepers high (800mm) with runs of 2000mm. The tiers will be used for vegetable gardens. It seems that most people use either pine or hardwood sleepers for a job like this, but I'm concerned about the chemical treatments in pine sleepers and not convinced that hardwood will last. I would like to consider wood composite or recycled plastic sleepers as these will be safe for organic vegetables and last longer. There is plenty of information out there about composite decking, but I can't seem to find any information on pricing or availability for sleeper products (which would presumably be stronger). Most of the websites I am finding seem to be meant for commercial and industrial purposes. Does anyone have experience using wood composite or recycled plastic sleepers in residential landscaping? What kind of pricing per sleeper will I be looking at? Thanks! Re: Composite Retaining Walls? 2Aug 06, 2014 4:56 pm Most recycled plastic plank type products I have come across are susceptible to creep when a continous load is placed on them. I would have thought you may be better going for concrete sleeper panels, comparatively easier to find. The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Composite Retaining Walls? 3Aug 08, 2014 11:34 am + 1 for the concrete sleepers or you can get arsenic free treated pine. Research ACQ Treated Pine. Re: Composite Retaining Walls? 4Aug 19, 2014 9:39 am Have you considered concrete sleepers? Please feel free to contact me if I can be of help. Regards, Anthony Icon Walls www.iconwalls.com.au Engineered Retaining wall products 2/64 Bennet St Dandenong 03 9792 1476 Render your bathroom walls, two opinions versus the one, makes you wonder. 3 6065 The spacing of the studs looks pretty large especially for a load bearing wall. 3 11123 Nope, only on the inside, I've literally has my ears to the brick outside and can't hear anything. I can sort of 'reset' the noise by pressing firmly on the studs. This… 10 11795 |