How to Wallpaper Corners and Around Trim

Corners

• 1

  Use your trim knife to press the wallpaper into an inside corner and cut it with your razor, treating the paper just as though it were going against the ceiling or baseboard. (See "How To Hang Wallpaper" under Related eHows.)

• 2

  Smooth down the whole strip, then peel it back from the corner a few inches.

• 3

  Draw a new plumb line on the adjacent wall with your carpenter's level, measuring out from the corner the width - minus a half inch or so - of a piece of wallpaper.

• 4

  Line up the next piece of wallpaper to this plumb line and apply toward the corner as though there were no corner, matching the pattern, and letting the extra paper flop over the corner.

• 5

  Using your trim knife again, cut the second strip of paper just a little bit wider than the corner (by 1/16 inch or 1/8 inch), and smooth the paper tight into the corner. (Be careful - as always - not to press too hard with your razor, or you'll damage the wall.)

• 6

  Lap the first piece (which you had pulled back a few inches) over the second piece; this will ensure that if the paper shrinks, no gap will appear between the two strips.

• 7

  Press down the paper and clean off any adhesive that has squeezed out.

• 8

  Apply the same basic strategy to outside corners, perhaps using a straightedge to keep your razor cuts straight.

Door and Window Frames

• 9

  When you reach a piece of trim, smooth down the paper against the trim as best you can.

• 10

  Use a pair of scissors to cut off most of what flops over the trim, leaving only about 2 inches to work with.

• 11

  Where the trim makes a corner turn (for instance, going from vertical to horizontal), make a diagonal cut in the paper, starting from where the paper touches the corner, and going out to the edge of the remaining inch or two. This will allow the paper to lay flatter.

• 12

  Smooth down the paper again, and, using your trim knife and razor, cut the paper against the trim as you would against the ceiling or baseboard.