Calculate the distance
On inside corners, determine the distance from one end of the last piece of paper you placed onto the corner of the room. Perform the same action at the bottom of the piece of paper along with at the top. After that, grab the wider of the both distances and add half an inch. Then cut the next piece of paper vertically to the same length as of before.
Paste the piece of paper
Paste and put this piece, pushing it against the edge of the previous piece and continuing with it into and out of the corner. Then make the surface free from irregularities on both walls and cut the extra paper at bottom and top as you desire. Produce a plumb line on the wall before wallpapering it. Make the measurement one inch less than the roll’s width away from the corner.
Wrap the paper
Fasten the next roll of wallpaper in a manner that it overlaps the inside corner twice. Smooth both ends together and take the help of a seam roller to knock down to the wall. After reaching the outside corner wrap the wall covering around the bend.