You can either make two slings from a length of fabric that is as long as your completed sling (2 to 2.5 yards), or make a single sling from half that length.
I do not recommend piecing fabrics together unless you have absolutely no alternative. Every seam is a place where the fabric can tear, so it's best to have the fewest seams you can in an application like this. If you have absolutely no other way to make a sling, you can use this method, but I would recommend using it as infrequently as possible and upgrading to a single-piece sling as soon as you can.
Basically, with your 60" wide fabric, you cut along the original fold line (from when the fabric was on the bolt -- so that the two selvages are together opposite the fold), then sew the shorter cut edges together with a sturdy seam (like a French seam) -- ideally, they'd line up better than my pretend fabric below! then you hem the long edge you just cut, the short edge that was cut at the fabric store, and you can either leave the selvage unfinished or hem it, as you prefer.
First cut along the fold line, so that you have two pieces that are 30" by 1.25 yard each:
Please note: Make sure the *selvages* and not the cut edges line up -- otherwise, your sling will be far too long and too narrow!
Next, sew the two pieces together along one of the original cut edges, making a single piece that is 30" by 2.5 yards. A flat-felled seam is the most secure, and is what I use when I need to piece a sling.
Hem the new cut edge. You may also hem the selvage, but I like to keep it as-is, so I can tell the two edges apart when I am adjusting the sling.
It's safer and easier to use the full, continuous length, though, and that way, you can make two slings from the yardage -- one to wear and one to give away, or one to wear and one to wash, or one for you and one for your partner.
Did you use this pattern and like it? Please link back to me from your site or blog! (This is not an invitation to copy the file to your site, nor does it imply that the file is freeware. I invite links, but as I do make changes to the files on my site from time to time -- and often they are important ones -- I do not wish them copied to other sites.)the URL for this pattern is: http://crafts.sleepingbaby.net/piecing.html
Here is a little graphic you can use:
To make a link, please copy the graphic to your own directory (linking to it here is theft of bandwidth! Shock/horror!) by (PC) right-clicking on it, or (Mac) clicking and holding, and selecting "Save picture as..." then copy this code and paste it onto your page wherever you want it:
<a href="http://crafts.sleepingbaby.net/piecing.html" target="_blank">
<img src="link.gif" alt="Jan Andrea's Baby Crafts" height=50 width=135></a>
Remember to change the image source to wherever you've saved the image! And thanks for the link!