If you want a deeper chair, fold the canvas long-ways, making your cuts along the longer edges of the fabric. If you want your chair wider, cut along the short side. In general, the short-side cut makes a better chair.

Again, make sure the folded edge is oriented to your left. You want to cut the unfolded side of the fabric.

You should have a four-sided shape, with two angled edges of equal length, a long side and a short side. Orient the fabric so the shortest side is at the top.

Hem the diagonal edges as well, but only once. After hemming the long and short sides, fold the diagonals that you cut earlier about a half inch, as you did the other edges. Pin, press, and sew the edge to reinforce it.

Reinforce your beginning and ending with back stitches. These pockets are going to be holding your weight, so they need to be secure.

Consider painting both sides as you will see the back and bottom of the chair. Allow for ample dry time before proceeding to next step. You can also use printed fabric, but be sure it is upholstery weight or outdoor fabric to ensure its strength.

Start threading the unknotted end through the dowel and canvas. Guide the down through the outer hole in the dowel and then up from the widest corner of one side of the canvas seat to the narrow corner at the top. Measure approximately 3 feet from your first knot, and tie another knot. Thread the rope up through the inner hole of the dowel so that the knot you just tied rests against the bottom of the dowel (the opposite side as the first knot).

If the two lengths of rope hanging below the dowel are not even, adjust the knots as needed before pulling them tight.