On Sunday, November 19, 2017 at 8:47:15 AM UTC, Tim Lamb wrote:
In message , Iggy
m writes
replying to Tim Lamb, Iggy wrote:
For everything but tile, every 150mm at the board edges and every 300mm in the
board field. This will and should match the subfloor's screw spacing. For
tiled areas every 75mm at the board edges and every 150mm in the board field.

OK Iggy. Now all I have to do is avoid the pipes:-(

--
Tim Lamb

Many years ago now I went to a Murrayfield rugby match with a friend's wife while he replaced the wire nails the plumber had used with lost heads so that the floor could be polished. We returned some hours later to find his brother crouching on the floor with his fingers over as many holes as possible while the husband had gone off to find the plumber to turn off the water!!