Browse Forums Building Standards; Getting It Right! 1 Feb 12, 2016 8:42 pm I bought 140x19 Merbau for a deck from a company, and some of the milling seems to be a bit off. On quite a few lengths, toward the end (up to 150mm of the end), the timber tapers from 140mm to say <138mm. This is annoying when I'm meeting 2 lengths, one at 140mm and the other at 138mm. Also, one 3.9m length tapers from 140mm at both ends to 135mm in the middle. I've bought 10% extra, but having to cut up to 150mm off each end from some boards is fast eating into waste allowance Is there are tolerance on supply of decking timber? Am I being too much of a perfectionist? I'm not worried about bow and twist as I understand that's the nature of timber. It's just the cr*p machining. I'm asking because I previously bought some other decking timber from another supplier, and had absolutely no such problems. Re: Machining tolerances of decking timber 2Feb 12, 2016 9:42 pm It will depend so much on where you are buying your decking from. Some will be spot on width all the way along a length of timber whereas the next place will have stock similar to what you have found. A lot of the time price won't be a factor either. We have found the same problem with some colonial style architraves. Try getting your mitres to look good around a door when there are two different sized or two slightly different profiles of architraves! Stewie Hi, as per the subject. Does anyone have any recommendations for the best value decking oil (Bunning is close to where I live) for a treated pine deck? Thanks 0 10970 Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15886 Use a product like Equisol's Vitalise to clean the deck then coat with a penetrating timber oil. It will look 10 years younger and add value to your home. Visit for… 1 15767 |