| A | B |
|---|
| scaffold | An elevated platform for workers and materials. |
| maximum intended load | The total weight of all people, equipment, tools, materials, and loads that a ladder can hold at one time. |
| straight ladders | A nonadjustable ladder |
| hand line | A line attached to a tool or object so a worker can pull it up after climbing a ladder or scaffold. |
| extension ladder | A ladder made of two straight ladders that are connected so that the overall length can be adjusted. |
| stepladders | A self-supporting ladder consisting of two elements hinged at the top. |
| top rails | A top-level, horizontal board required on all open sides of scaffolding and platforms tha are more than 14 inches from the face of the structure and more than 10 feet above the ground. |
| mid-rails | Mid-level, horizontal board required on all open sides of scaffolding and platforms that are more tan 14 inches from the face of the structure and more than 10 feet above the ground. It is placed halfway between the toe-board and the top rail. |
| toeboards | A vertical barrier at floor level attached along exposed edges of a platform, runway, or ramp to prevent materials and people from falling. |
| cross-bracing | Braces (metal or wood) placed diagonally from the bottom of one rail to the top of another rail that add support to a structure. |
| planked | Having pieces of material 2 or more inches thick and 6 or more inches wide used as flooring, decking, or scaffolding. |
