2.5 in
at Walmart
I suggest trying home depot, I know that they have patio coverings as a seasonal item. jcpenny.com had a huge selection of patio covers and umbrellas.
Any home improvement store should have a deck or patio section. I recommend looking at Ikea, Home Depot, Lowes, or a different improvement store near your home. From there, you should be able to find an assistant there that can help you design the patio/deck that would fit your needs.
You can find a red and white patio cover in a variety of places, including home furnishings stores, department stores, and discount stores. Here is a link, so you can see the variety of "red and white patio" options at Amazon: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dgarden&field-keywords=red+white+patio+cover&x=0&y=0
You can get a patio design at any home improvement store. You should check Home Depot or Lowe's they sometimes have them on sale in the spring and department stores like Target.
You should try the home depot. They specialize in a lot of home and garden stuff. In your case home depot would be the best choice. They let you have customize umbrellas to fit your patio home.
Try Home Depot or Lowes.
The spring is a good season to check department stores and home improvement stores for sales on patio furniture. You should check Target and Lowes or Home Depot.
Go to the place where you bought the patio chair from, you should be able to order a replacement chair from there. If you cannot, try Home Hardware, Home Depot, or Canadian Tire.
I would not have bought the cheap patio set because there are often many deals on patio sets at home and garden stores around you. You should go check them out.
Amazon.com would be a good place to start, as they will have a large selection of seasonal patio furniture products that you can peruse from your own home. The site will also give you some idea of the price, styles and size of the covers available.
There are places you can get free patio layouts I would check at your local material store like lowes or home depot. They should have some patio plans available at no charge.