Write an article based on this "Select flat cardboard and cardboard rolls without ink marks. Measure the cage’s dimensions to determine the platform’s size. Dry the glue for up to 24 hours before moving the platform."
No matter what type of cage you have, you have the ability to install a platform in it. For an inexpensive and easy way to make a platform, use cardboard. Get a big piece of cardboard for the platform’s surface and about 5 or 6 toilet paper rolls to use as supports.  Wood is the best choice for building sturdy platforms. Hamsters also enjoy chewing on wood platforms to hone their teeth.  For wood platforms, look for pre-cut pieces of wood at an art supply store. Alternatively, use a table saw to fashion your own wood pieces. Make sure you wear proper safety gear, such as goggles and a dust mask, if you operate a saw. Pick a space for the platform. Use a tape measure to note the length, width, and height of the available space where you plan on fitting the platform. Write these measurements down so you have them when you start crafting the platform. Platforms also work well outside of a cage, such as in a playpen. Take the same measurements to build the platform to the size you desire. Set the platform out in open air in a location where it won’t be disturbed. Give the glue plenty of time to cool off and harden. When you’re done, test the platform to make sure it feels stable.