Seat width between the arms:
190 cm
Seat depth, front edge to backrest:
55 cm
Large square
60 × 60 cm
−
0
+
Standard square
50 × 50 cm
−
2
+
Lumbar
30 × 50 cm
−
1
+
Front view, drawn to scale. The cushions sit in the two corners, biggest at the back. The little offsets are only for show; the sums use the widest cushion in each pile.