Type of Formwork                          Minimum Period
                                                          Before Striking
                                                              Formwork

a) Vertical formwork to
columns, walls, beams                           16-24 h

b) Soffit formwork to slabs
(Props to be refixed
immediately after removal
of formwork)                                         3 days

c) Soffit formwork to beams
(Props to be refixed
immediately after removal
of formwork)                                         7 days

d) Props to slabs:
1) Spanning up to 4.5 m                        7 days
2) Spanning over 4.5 m                         14 days

e) Props to beams and arches:
1) Spanning up to 6 m                           14 days
2) Spanning over 6 m                            21 days