I chose to go with a fairly traditional felting route - rolling by hand and with the Gentle Roller followed by fulling by hand and using the Gentle Roller. After laying out the prefelts, roving and decorative elements on top of painter’s plastic, I wet down the work and covered it with another piece of painter’s plastic.
TIP: wetting prefelt can be problematic so keep pressing and rubbing and checking the back to see that the water has migrated all the way to the bottom of the stack. I rubbed all over the surface systematically paying attention to the decorative elements to ensure good connectivity. This is laborious and a sander might work as well. The Gentle Roller then took over the labour. 1000 to 2000 rolls in each direction. Once everything was nicely adhered, I started the fulling using the usual methods. Once the process was underway manually i had the Gentle Roller take over for 5000 throws.
I made four pieces of felt that shrunk anywhere from 22% to 29% overall. This was a little less than desirable - next time I would try to shrink at least 30% and put the yardage through a wash cycle before cutting out just to ensure it was well shrunk and less likely to pill.
The biggest pieces were the back and fronts at 72” long by 58” wide to start. The raw materials covered the entire surface of my two tables joined together. Such large sizes present a challenge for reaching all the surface, flipping over, rolling… you name it. You would be wise to get an assistant to help turn the bundle over in the early stages to check for dryness.