30' × 20' with a 12' × 20' cross

24' × 15' with a 10' × 15' cross

18' × 12' with a 6' × 12' cross

20' × 15' with a 8' × 15' cross

10 × 6 m with a 4 × 6 m cross

8 × 5 m with a 3 × 5 m cross