Measuring 60x80cm, 24x32" is a common size for photo prints, art work and posters. The standard way to measure a print is by measuring width by height.
To get the best print result for 24x32", you'll need at least 1728 x 2304px and ideally 7200 x 9600px.
If you are looking for a frame with a mat for an 24x32" photo, choose the 28x36" (70x91cm) frame. The mat will have an 24x32" (60x80cm) opening.