Textures are usually used for backgrounds in a graphic or web design project. These brown colored textures when used as a website background will give it a retro,grungy,vintage styled looks. Below provided are real photos rather than designs, which are very realistic enough as raw. These textures will come in handy while doing simple poster designs, overlay-underlay to match your designs.
Creating cardboard textures wont be that hard, if you know Photoshop. Starting with a brown background and playing around with filters will make a beautiful texture along side using vertical patterns. Here is one such simple tutorial. Some of these textures are only free for personal use others are available for commercial use, but don’t forget to credit the designer or photographer. You can find the license type by visiting the link in image.
Cardboard Background Textures