Care & Display
How to Flatten Your Poster
A complete guide to removing curl from your custom star map print and displaying it perfectly

Your Starrymaps poster travels safely to you rolled in a protective tube. While this keeps it pristine during shipping, the paper naturally holds this curved shape. Don't worry—flattening your custom star map is simple with these proven methods.
1
The Reverse Roll Method
Easy • Low Risk- Unroll your Starrymaps poster and notice which direction it naturally curls (usually inward, with the printed side facing out).
- Gently roll the poster in the opposite direction—with the printed side facing inward this time.
- Secure loosely with a soft hair tie or ribbon and leave for 1–2 hours.
- Unroll and check. Repeat if needed, adjusting the time based on results.
Time needed: 1–2 hours
2
The Weighted Stack Method
Easy • No Risk- Find a clean, flat surface like a table or hardwood floor. Lay a protective sheet (clean paper or cloth) down first.
- Place your Starrymaps poster flat, printed side up. If it tries to curl, hold the corners with small weights while you work.
- Cover with another protective sheet, then stack heavy flat items on top: large books, magazines, or flat boards work perfectly.
- Leave undisturbed for 24–48 hours. Check and repeat if some curl remains.
Time needed: 24–48 hours
3
The Mattress Method
Easy • No Risk- Sandwich your Starrymaps poster between two large pieces of cardboard or foam board for protection.
- Slide this sandwich between your mattress and box spring, or under a heavy rug.
- The even weight distribution across the entire surface creates perfect, gentle pressure.
- Leave for 2–3 days for best results. This method requires patience but produces excellent results.
Time needed: 2–3 days