C2c

[Dayna Brown]

Hi can any nice person out there tell me how many rows do I do for descent blanket before I start decreasing xx

[greyhoundgrandma]

http://www.redheart.com/free-patterns/crochet-corner-corner-throw

This one is worsted weight, 67 x 67" and begins the decrease at row 97.

 

http://www.ravelry.com/patterns/library/spring-into-summer-blanket

Tip from the above pattern:

Making adjustments to the dimensions of the blanket is simple, as the pattern is worked diagonally until the desired blanket width is achieved before decreasing rows are begun.

[ddc]

When I do these, I just keep doing the beginning rows increasing both sides until it is the width I want, and then start the rows that decrease on one side until the long side is as long as I want the afghan, and begin squaring it off. 

 

If you want a very specific and regular striping pattern though, I guess you could do a gauge swatch making a rectangle and more or less calculate it from that.