This is the base for my new embroidery piece.
Before felting it measured 33x50cm (13×19.5 in)
(Yarn: two strands of plötulopi, 7mm needles).
After one round of machine felting at 60°C (140 F):
it measures 20x36cm (7.8×14 in). Pretty even and not curled up at the edges. So I’m pleased.