does anyone know where I can download a shapefile of 2km DINTY Tetrad squares for the UK please? A google search wasn't very helpful so I thought I'd try here.

A Tetrad is derived from the British National Grid, but is not the same as the British National Grid, so this is not a duplicate question.

  • Are you sure this data is available for the UK? USA/Canada yes tetrad.com/maps_and_data/canada/census-boundaries
    – Mapperz
    Commented Nov 27, 2013 at 17:56
  • 1
    @Mapperz This question almost surely refers not to the company you link to but instead to the British Ordnance Survey Grid.
    – whuber
    Commented Nov 27, 2013 at 19:51
  • 3
    This question is not a duplicate. The question linked as a duplicate is mine and the download containing OSGB grids provided in the answer also happens to my Git repo, so I'm familiar with the data. :-) I can definitely confirm that my repo doesn't contain tetrads, aka DINTY tetrads. So the question stands and is perfectly valid - if there is a DINTY tetrad dataset available for download I'd like to know so I can add it to my repo (at which point the question would indeed be a duplicate) ;-) Commented Sep 15, 2015 at 13:42

1 Answer 1


there is a way in QGIS, using the TomBio plugin, to generate tetrad squares for an area of interest. More info and youtube tutorials available here.

To use this...

  • zoom to an area of interest e.g. using a web basemap and the QuickMapServices plugin.
  • turn on OTF projection and set to 27700 (OS GB)
  • select "Tetrad (2km)", show grid squares
  • click on the grid icon which doesn't have a yellow background
  • Click and Drag on the canvas to select an area

screenshot below...

enter image description here

this creates a memory layer but you can save it off as a shapefile etc. for later use.

The shapefiles that @charlesroper compiled on github - as mentioned in the comment - are really handy, but don't include tetrads (OS have LOTS of grids...)

I find grid generation can be slow if there are lots of cells so this may not be viable to generate the complete OS Tetrad grid, but hopefully it's useful for a specific survey/project

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.