Browse Forums General Discussion 1 Jan 19, 2019 7:26 am Hi Guys I am renovating my pool area and I might have a dispute on how the landscaper has screwed the hardwood to the feature wall and also the customer made seat they are doing. Issue Everyone I have spoken to after the event has said to avoid warping and cupping two screws should be used. As per the picture the landscaper has only used one and after only two weeks (they haven’t finished the job yet due to Xmas) some boards already have visible cupping. When I questioned the landscaper why he only used one when I had received advice that two is standard he said that Hardwood under 100 ml only needs one screw. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Question. Does anyone know if there are any standards for how many screws are required for hardwood. Our boards are 90 ml. I want to be able to have a reasonable discussion with him. He as suggested he could do more screws but having 3 screws on a 90ml board is overkill and my preference would be for him to start again and build to standards required. Many thanks Sam There is a much stronger glue than liquid nails. It's called T Rex and will stick your timber to the concrete. Cheers Simeon 1 1779 l spoke to my plumber we decided to replace the rusted screws and keep all the screws with no rust, it will only cost a few hundred 7 9662 |