Measure the width and height of the area for your rope bookshelf. Keep in mind the head space above the top shelf and allow for room below the bottom shelf.
Add the width to the height plus head space and an extra 20 inches for the bottom. Double the total measurement and cut two pieces of the rope. Wrap the ends of the rope with masking tape.
Hold the pieces of rope side by side. Fold the length in the middle. Tie an overhand knot 3 inches below the fold for the hanger. You will have four ends that will be used for the four corners of your rope bookshelf.
Determine the space between each shelf and the number of the shelves needed. Cut each shelf using the width measurement of your bookshelf.
Drill holes in each shelf approximately 1 inch from each corner edge. Use a drill bit the same diameter or slightly larger than the rope.
Insert a rope end into each drilled hole on the first shelf. Pull the length of the ropes through.
Set the top shelf board on one long edge, if the bookshelf will be hanging from the wall. Place the looped hanger flat on your work surface, above the desired head room on your shelf.
Knot each rope evenly below each hole in the shelf.
Insert a rope end into each drilled hole on the next shelf. Pull the length of the ropes through the holes until you have achieved the distance between the shelves that you want.
Repeat steps 8 and 9 until all the shelves on the bookshelf have been added. End with step 8.
Gather all four ends of the ropes below the bottom shelf. Tie them together using an overhand knot. Cut the knotted ends, leaving a rope tassel.