What File Resolution Should I Use for Wall Peels? The minimum resolution for Clings is 300ppi. For a 16"x20", we recommend the file size be 4800px x 6000px. To order a Wall Peel, click here. Related articles How Long Will the Adhesive Remain Removable and Able to be Re-Positioned? Will the Adhesive Leave a Mark on the Display Service When Removed or Re-Positioned? What Are the Best Display Surfaces for My Wall Peel? How Do I Install a Cling? What is the Wall Peel Material?