I am very vertically challenged and have bursitis in the right hip...once I had the ergonomics worked out for quilting on my shortarm and now on a Bailey Pro 17E with Grace Majestic Frame, I needed to raise myself since the frame was as low as it could be. I used a few layers of interlocking floor mats (the number of layers needed depends on your height). You can use any number of mats to fit the width of the frame and then build up the layers until you determine you have reached the right number of layers. I rarely have pain in my hip, back or knees. Hope this helps.