Shed Windows — Standard & Insulated with Screens | Cedar Rock BarnsAdd natural light and ventilation to any Cedar Rock Barns building Windows make a real difference in how a shed feels to use especially if you're spending time in it working, organizing, or storing items you want to see. All windows come with screens and shutters standard. Available in single pane and insulated versions for customers who want better temperature control. Available sizes 18x27 compact, great for sidewalls on smaller buildings 21x27