Hi I want to put a 6x6 wooden trellis onto fencing for a climber what size screws are suitable for this job. Also when prepping should I use a smaller drill bit first say for example screws 6mm should I prep with 4mm?
Annie foreman from United Kingdom
Hi Annie, you are correct on the need to use a smaller pilot hole drill first especially if you are near to the edge of the wood. You don’t want the screws rusting so either use brass or zinc passivated screws for outdoor use. You can buy wax coated screws with split tips that minimise splitting too.