Fig.5:
Insert the big top frame bar (H & I) to the big top corner connector (G).
Fig.6:
Insert the slanting bar (D) to the big top corner connector (G).
Fig.7:
Insert another end of slanting bar (D) to the post (A).
Fig.8:
Insert the middle beam (E) to the big top frame bar (H or I).
Fig.9:
Insert another end of middle beam (E) to the middle of crossbeam (B or C).
Fig.10:
Insert the small top slanting bar (K) to the small top beam (J).