Yes, you can find large size clothes on discount at JcPennys. You many also want to check the clearance racks at Sears, Belks, Kohl's, Bealls, Dillard's, and Macys.
Some great places to find plus size clothing for women is this following site: www.catherines.lanebryant.com/ They have some stylish clothing brands in the plus-size, just what you were looking for.
You probably need to buy your clothes at some place which does alterations. Most good men's stores will perform alterations for free if you ask.
Torrid is a great brand of plus size clothing. They have their items for sale on www.torrid.com. Lane Bryant also has great clothing, although some things are more geared toward older woman than teenage girls.
You can find patterns to make your daughter clothing at simplicity.com. There is a section on their pattern list strictly for plus sized clothing.
Some websites that offer large size clothing for men include www.kingsizedirect.com, www.foundrybigandtall.com, and http://www.davisbigandtall.com/davis/dept.asp?dept_id=3109. There may also be local big and tall department stores near you.
There are downloadable, printable size charts all over the internet. Some clothing stores may have a size chart that can be viewed in the store for convenience.
Clothing that is labeled XXL is Extra, Extra Large. That is two sizes larger than the large size. Some people are very large. (I personally wear XL.)
599fashion.com is an online store that sells plus size clothing, and their selling point is that each item of clothing is only $5.99. This is probably the place to find some of the cheapest clothing online. Forever21.com also has a plus-sized section with very affordable prices.
There are many different companies that offer plus size clothing. Some clothing companies that offer this size include Nordstrom, Macys, and Lands End.
The best places to find plus size dresses offer depends on where you live. Most department stores carry plus size clothing as well as some specialty stores.
Size 14 is typically considered a Large in women's clothing. However, sizing can vary by brand and style, so it's always best to check the specific size chart for the brand in question. In some cases, size 14 may be on the cusp of XL, but it generally aligns more closely with Large.
You can buy many plus size clothing, for low, reasonable prices at Wal-Mart. If you aren't on a budget some good stores may be Kohl's, JCPenny, and Target.