Hey all! This is my first instructable, so bear with me if it doesn't make tons of sense. I made this t-shirt blanket while quarantineing due to COVIC-19 using old t-shirts I had collected. The cost was relatively cheap, I used t-shirts that I already had, and it cost about $30 to get the backing fabric and the fusible interfacing. If you make this blanket, I'd love to see your results! Don't hesitate to reach out to me with questions or for clarifications.

Supplies

T-shirts! (I used 25, but you can use any number, as long as you can form a square or rectangle from them) My blanket turned out roughly 75 inches wide by 80 inches long
Sewing Machine
Iron
Needle and thread
Cardboard square (I used a 15 inch by 15 inch one, but you can use a different size one if you want your squares to be bigger or smaller)
Sewing Scissors
Fusible Featherweight Interfacing (I used Pellon 911FF, but you can use any brand)
Fabric to make the backside of your blanket

Step 1: Cut the T-shirts

Once you have picked out the t-shirts that you want to use, Lay each one out and cut it into a square using the cardboard square cutout. I used a 15 inch by 15 inch cardboard square to make my t-shirt blocks.

Step 2: Layout

Lay all of your t-shirt blocks out on a flat surfance and arrange them in the order and pattern that you want.

Step 3: Iron the Interfacing

Once you have your blocks cut and in teh order you want them, cut the fusible interfacing into blocks roughly the same size as or a little smaller than the t-shirt blocks. I did this on a block to block basis, using each block to measure the size of the interfacing. Once, you've cut out the interfacing, iron it onto the t-shirt blocks.

Step 4: Sew Blocks Together

Once all of your blocks have had the fusible interfacing attatched, sew the blocks in each row together. I pinned and sewed one block at a time. Once you have all of your rows sewn together, begin to sew each row to the next. I pinned the first two rows together and then sewed those two to the third and so on and so forth until the front was finished. After sewing each row to the next, I would realign all of the rows to ensure that they were staying roughly straight.

Step 5: Sew Backing On

Place your t-shirt blocks and your backing fabric together right side to right side. You may have to cut your backing fabric into chunks and sew them back together so that the backing fabric is the same size as the t-shirt block side. Once your backing and front are aligned, pin them together, and sew them together. Make sure that you leave a hole roughly a foot or a food and a half wide on one edge to turn your blanket right side out.