Can this be used on an exterior Fiberglass door with wood grain texture?

Thank you for asking. Our Command Adhesive Strips work best on flat, smooth, solid and painted/sealed surface. If the texture is greater than the peel of a orange or is raw wood, we would then not recommend using on that surface. If you have any other question, our team is available Monday - Friday 8:00am-4:30pm CT at 800-934-7355 and reference this number 24445678.