Partly for the photo-z calibration purposes, we have stacked a subset of the UltraDeep-COSMOS data to the Wide-depth. Thanks to the large number of visits taken in the field, we could generate stacks with three different seeing sizes; best seeing (0.5 arcsec), median seeing (0.7 arcsec) and worst seeing (1.0 arcsec) in all the bands. These three stacks are available from the database. Because the individual exposure times in UltraDeep are longer than those in Wide, we stacked only 2 and 4 visits for gr and izy, respectively. As a result, the gaps between the CCDs are not fully filled and this may limit the use of the wide-depth stacks. But, for checking photometry at different seeing sizes, that should not be a major problem.