Assists in the construction, fabrication, assembly, installation, repair or replacement of doors, walls, signs, desks, counters, shelves, shelf units, benches, bleachers, forms, frames, window frames, fences and stairways. Requires basic knowledge of the materials and methods sufficient to assistant others in one or more of the following areas: rough and finish carpentry techniques, commercial painting, window glazing and framing, electrical, and plumbing.