Corner protectors, including corner protectors for furniture corners, are shown and described. Corner protectors may include, in some examples, a body, a first end including a shoulder, a second end including a cutout, a first side, and a second side. A cutout may include an attachment projection and an attachment receptor. Corner protector sheets may stack for convenient storage, with individual corner protectors removable from the corner protector sheet and each taking on an expanded form to fit around a furniture corner.