Hi All.....Appologies, this may seem a little long winded but just trying to give as much info as I can.... I am in the process of clearing a site at the bottom of my garden on which I am going to build a single garage. Dimensions of which are 5.1m Long, 3.7m Wide, overall height of approx 3.2m (Pitched Roof). Just awaiting the confirmation of the planning application from the council. Due to the size of the buildings footprint, it falls outside the scope of building control and as such I am not getting much assistance from my BCO in terms of guidance with regards to foundations. I am proposing to use the trench foundation method, BCO has advised to go to a depth of 750mm which seems a standard depth so happy with that. Im planning on bringing the concrete to approx 150mm below ground height which I think is also a kind of standard from what I have read on the internet. This means the actual depth of the concrete will be 500mm deep. What I am struggling to find information on is how wide should the footings be?? My Dad suggested 16 inches wide (hes not a builder though), that would give 6 inches either side of a concrete block, does that sound about right. Any thoughts, much appreciated??