I've never counted, but I usually have my favorite TV show on, or a favorite movie, and the time seems to fly by, and before I know it, I've ironed 20-30 yards of fabric. While I was in Rehab, recovering from a spinal cord injury, one of the therapists gave me 39 yards of fabric that a friend had given her and she wasn't going to use it (I counted because I was curious) which was a very generous gift. If I washed it all at the same time, I could iron for hours,without realizing how long I had been ironing, but I would wind up with a large stack of washed, ironed and stacked fabric.