Why canvas corners begin separating before most owners notice Canvas corner separation rarely starts as an obvious problem. In many cases, the earliest signs develop gradually inside the structure of the stretched canvas long before visible gaps, distortion, or looseness become noticeable from normal viewing distances. Why canvas corners begin separating: • Natural tension changes within the canvas • Environmental fluctuations in temperature and humidity • Stress concentrated at corner folds and attachment points • Aging materials that lose flexibility over time The reason many owners miss the issue is simple: separation often starts on the back or edge of the canvas where it is difficult to see during everyday display. As tension changes continue, small structural shifts can eventually affect canvas alignment, corner integrity, and overall presentation. Regular inspection helps identify developing problems before more extensive repairs become necessary.