I need some advice with sewing this lounge seat cover

I am in the process of sewing a loose cover that slips over the frame of a square shaped lounge chair. There are two square cushions that sit inside the frame.

There are 3 panels that need to be somehow joined to form a square corner.
Hopefully by the I photos you can see the problem.

A panel that sits along the back top of the seat and lays flat has been sewn along the top edge of a larger square of fabric that is the back of the seat. (This forms one piece)
The second panel is the side of the seat which is to be sewn along the length of the arm panel.

I am trying to sew the back panel, the side panel and the arm panel together to form a square shape.I tried rounding the corner which joins the back, side and arm panel to form a T shape, but the fabric did not sit right.

As you can see by the photos the corner needs to somehow be sewn in a T shape. How do I do this so that the corner is squared off.
Thanks for your help in advance.
q sewing a lounge seat cover
q sewing a lounge seat cover
  10 answers

    • Bron Bron on Dec 08, 2016
      Thank you for your suggestion. I had another look at it and am wondering if the problem is when sewing the panels together the edge of each fabric piece is not even. I don't know. I have a large piece of old fabric that I am going to practice on.

  • Cori Widen Cori Widen on Dec 08, 2016
    Yup, definitely turn it inside out and sew the two sides, and the top next. Also - are you using a sewing machine?

  • Bron Bron on Dec 08, 2016
    yes I am using a sewing machine. Joining the panels together work but it is just when I get to sew into the corner and try to sew along the seam line to form the corner pocket, the fabric just doesn't sit flat. Thank you for your suggestion. I will try it again using some old fabric to practice on :)

    • Karen Jurasinski Karen Jurasinski on Dec 08, 2016
      Hand baste it until it looks right then sew it on the machine. It is a bit tricky sewing a corner like that and patience is the key.

  • Lily Schlender Lily Schlender on Dec 08, 2016
    Slip the cover on ,wrong side out. Feel it with your fingers against the furniture, pin along the edge of the slip cover where your seam should go. You could also make a crease with a steamer or iron (careful with fabric type) this helps with matching up for stitching. Allow a little ease so you can get it on an off. Use velcro at the back vertical edge to get a secure fit. Use heavier thread and needle and stitch slow and straight seams. Don't over stitch seams, you will see puckering. You can topstitch the seams to one side for reinforcing. Google helps or YouTube. Good luck.

    • Bron Bron on Dec 08, 2016
      Thank you Lily,
      I did a bit of a play around with a scrap piece of fabric and figured out that the width of the back panel was too wide and needed to be shortened. I have tried sewing the seams by hand and it seemed to work when it was shorter in width and fitted more snugly.I will do your suggestion though it has been very helpful. Thank you :)

  • Lily Schlender Lily Schlender on Dec 08, 2016
    Forgot to mention, mark corners with pencil dot. Pivot your material at corners. Use sharp scissors and snip corners,one cut towards each corner. Be careful not to cut through your stitching. This should help the corners sit neater.

  • Judy Nichols Tejwani Judy Nichols Tejwani on Dec 08, 2016
    I learned this from the quilter, Sharon Shamber, but Elmers School Glue is a great way to hold things together from the fitting place to the sewing machine. I apply some glue then use an iron on top of the fabric to set the glue in place. The school glue washes out. Hope this helps.
    Judy, OC Stitches

  • Bron Bron on Dec 08, 2016
    Never would have thought of that. Thank you. Great idea

  • Kathy Bitzan Kathy Bitzan on Dec 10, 2016
    You might have to make some cuts up to your sew line so the fabric eases a bit. just don't cut through your sewing. sometimes its just enough to make it lay flat. make sure you iron it also. the trick is a great thing, as my mother is turning over in her grave at the mention of gluing fabric. To much fabric you can make a small dart maybe. Not sure of your exact circumstances.

    • See 2 previous
    • Kathy Bitzan Kathy Bitzan on Dec 11, 2016
      I never did find any of that. LOL. But one never knows there little tricks. I do understand why she used a pinking shears now... to take the place of easing that fabric at times.

  • Judith Watson Judith Watson on Dec 11, 2016
    I always pin my item inside out onto the chair, fitting it as I go. It helps to fold the fabrics and match the centers of each panel, then start pinning from the center to the outside on each side of that center. If it helps you, also hand baste after you pin. This insures that the pieces stay together in the proper place. I also double stitch on items like this, as the seams take more stress when sat on. Always back stitch at the end of each seam, too. Hope this helps. If I lived near you, I would sew them for you. I have been sewing for over 55 years!

    • Bron Bron on Dec 11, 2016
      thank you for all your advice. What a lovely offer to sew it for me. If you lived near me I would let you sew it lol.No really it is a big challenge for me. I bought the fabric and washed it before cutting it. It shrunk a lot and faded so much but I continued e because the seat is so comfortable.It is a slow process but I am getting there. ·

  • Lucy Marie Bernier Lucy Marie Bernier on Dec 12, 2016
    Sew it like you would do a gift. Use a curved needle to make easier.