| 摘要 |
PROBLEM TO BE SOLVED: To provide a stair for temporary and permanent use, excellent in strength, capable of eliminating creaking sound, and excellent in workability, and a construction method of the same.SOLUTION: The stair for temporary and permanent use is constituted of: a pair of slantly arranged parallel side plates 50; a step board base 51 fixed to a horizontal plane 50a which is formed with a vertical plane 50b by being cut out in a serrated shape in advance on an upper part of the side plate 50, the step board base 51 being usable as a step board part of a temporary stair; a riser plate base 53 firmly fixed to the vertical plane 50b integrally with the step board base 51 between the vertically adjacent step board bases 51, 51, the riser plate base 53 being usable as a riser plate part of the temporary stair; a step board decorative material 52 stacked on a top face of the step board base 51; and a riser plate decorative material 55 stacked on and fixed to a front face of the riser plate base 53. |
