When installing new steel doors, it’s smart to do other projects simultaneously. This can lower costs, limit mess, and help your home look and function better. For example, replacing a damaged doorframe is wise when planning door installations. 

Also consider changing broken or worn-out locks, repairing or replacing weather stripping, and updating handles. Painting, staining, or upgrading the trim around the door can also improve energy efficiency, security, and aesthetics.

You may end up with extra wallpaper once your project is finished. Hang on to that wallpaper, as you may need to use it to patch up areas that get damaged later on. If you have a lot of excess wallpaper, try getting creative with it. You can use it to line the inside of a cabinet or drawers, for example.

Many types of wallpaper exist, from removable peel-and-stick options to more permanent options that involve pasting. You can also find wallpaper that you can paint over, wallpaper with a texture, and wallpaper made from various materials, such as vinyl. Some types of wallpaper are washable, which can be a great option for kitchens or if your household has small children.

The average cost to install or hang wallpaper is around $575 per room or project, with typical prices ranging from $200 to $1,500. Costs can be higher for custom or luxury products. Since project size varies, it's often helpful to estimate labor costs per square foot, which generally fall between $1 and $7, with an average of $4 per square foot. The total cost depends on several factors, including the quality and type of wallpaper, the size and type of the room, and whether old wallpaper must be removed first. Opting for less expensive materials like peel-and-stick wallpaper or choosing to do the installation yourself can lower the overall cost. For the most accurate estimate, it is best to have a professional inspect the space and provide a quote.