Deck for use in construction

A deck for use in construction, the deck comprising:

• a stationary support structure positionable on a floor of a building, the stationary support structure including at least
• a first box tube,
• a second box tube disposed parallel to the first box tube,
• a plate extending between the first box tube and the second box tube, and
• at least one counterweight receptacle including at least one vertical post operable to receive one or more counterweights having at least one aperture;
• a first extension member disposed within the first box tube and being operable to retractably extend from the first box tube;
• a second extension member disposed within the second box tube and being operable to retractably extend from the second box tube;
• and
• a platform having a front end that is directly connected to a cross-member and the only direct connection between the platform and either the cross-member, the extension members, or said first and second box tubes is at said cross-member but is not directly or indirectly connected to that first box tube or that second box tube, wherein the platform is operable to retractably extend at least partly beyond an edge of the floor in conjunction with the first extension member and the second extension member.