Simply measure the width & height of your space then select the next size up, you may have some excess however this is unavoidable (as we're unable to print half panels.)
If you require wallpaper for a small DIY project, we recommend you purchase a single panel by contacting Customer Care. All other sizes shown in the drop down menu are designed for standard room sizes.
If you require longer/taller panels, that's no problem! Just get in touch with our customer care team for a quote: firstname.lastname@example.org
Please review our detailed product information on the wallpaper you are looking at purchasing to ensure your paint is compatible with self-adhesive wallpaper.