Wallpaper is so back — but don’t make these 7 mistakes when using it, according to interior designers

• Business Insider asked interior designers about the mistakes to avoid while using wallpaper.
• Not choosing the right type of wallpaper for a room can backfire.
• When planning the color palette for a room, it’s important to start with the wallpaper.

The days of plain-white walls are gone, and wallpaper is making a comeback.

Whether you opt for bold florals, sleek geometric patterns, or neutral tones with texture, wallpaper easily adds personality and color to any room. However, using it effectively requires careful planning.

That’s why Business Insider asked two interior designers — TC Chou, an NYC-based architect, interior designer, and the founder of Design Determination, and Angeline Guido Hall, the principal designer and owner of Dallas-based Angeline Guido Design — about the top wallpaper errors they see people make.

From application mishaps to aesthetic faux pas, here’s what they said.