Fishnet features have different length and area

Discussion created by kyttmacmanus on May 17, 2013
Latest reply on May 20, 2013 by dhoneycutt-esristaff
Hi everyone,

I am running into a problem with the create fishnet tool.  It seems that everytime I try to create a 30 Arc Second regular fishnet there are slight differences in the length, and area measurements of the resulting features.

If I create the file and then choose to select by attribute so I can see the number of unique values in the Shape_Area field the result is several possible values.

If I select one of them there is a structure to the selection such that it results in a checkered type pattern.

I have tried several manners of running the tool playing with parameters such as the coordinate system of the output, but always see the strange results.

Has anyone else experienced this?  This is not the normal behaviour I would expect from the tool given what I have read about how it works and what it is supposed to do.

Any advice would be appreciated.

Many thanks,