How many styling chairs can a hair salon have? Check the work room against the ordinance with your AI

Start from the hair salon model (free sign-up). In Japan, how large a salon’s work room must be is set by the prefectures and cities, by ordinance under Article 13 of the Hairdressers Act. Tokyo’s standard (the Tokyo Metropolitan Government’s page on opening a salon) asks for at least 13 m² for each work room, takes up to six chairs in 13 m², and adds 3 m² for each chair beyond six; the area is measured inside the walls. Chiba Prefecture’s ordinance (Article 3, item 2) asks for at least 6.6 m² for one chair and adds 3.3 m² for each more, and (item 3) a waiting area set apart from the work room. Morioka City’s standards table has the same figures and counts styling chairs, shampoo chairs and eyelash beds alike. In this article, on a mock hair salon, your AI checks the work room’s floor area and the chairs, and whether a seventh styling station can be added. It ran the same tools an AI calls over MCP. Every figure and number below comes from that run.

1. The work room and its chairs

The mock salon is a tenant of 8.2 × 7.2 m. Its work room is one room, the styling area (24.91 m²) and the shampoo area (5.5 m²) open to each other: 30.41 m² inside the walls. Your AI gives check_space’s floor area a person (areaPerPerson) the two zones (zones) to count as one room.

• The chairs are six styling chairs (three on the east wall, three on an island) and two shampoo chairs.
• The reception and the waiting area by the entrance are set apart from the work room by partitions.
• check_space finds nothing, and every room can be reached from the entrance.

2. The area each number of chairs asks for

Chiba’s and Morioka’s count, 6.6 m² and 3.3 m² for each chair more, is the same as 3.3 m² × (chairs + 1), so your AI gives check_space 3.3 m² a person for chairs + 1 people. A work room of 30.41 m² takes up to 8 chairs by Chiba’s and Morioka’s count, and up to 11 by Tokyo’s.

3. Are today’s 8 chairs enough?

• By Chiba’s and Morioka’s count, with the shampoo chairs, 8 chairs ask for 29.7 m²; the work room’s 30.41 m² is enough. The styling chairs alone, 6, ask for 23.1 m².
• By Tokyo’s count, 8 chairs ask for 19 m².

4. With a seventh styling station

Your AI adds a styling station and its chair against the back partition (west of the doors) in one change (edit_space). check_space still finds nothing.

• With 9 chairs, Chiba’s and Morioka’s count asks for 33.0 m²; 30.41 m² is not enough (8 at most).
• Counting the styling chairs alone, 7 ask for 26.4 m², which is enough.
• By Tokyo’s count, 9 chairs ask for 22 m², which is enough.

Which chairs count changes the answer. Morioka says outright that shampoo chairs count; ask the health centre where you open.

5. A small salon

A one-person salon with a work room of 10 m² is short of Tokyo’s 13 m². By Chiba’s and Morioka’s count it takes 2 chairs (9.9 m²).

6. Using the check

• Draw your salon (from a PDF drawing or photos as well), and tell your AI the work room, the kinds and number of chairs, and the figures of the ordinance where you open. The figures here are Tokyo’s and Chiba’s and Morioka’s.
• Laydyne checks the drawing’s areas, the chairs and the passages and door fronts. The lighting (Tokyo asks for at least 100 lux on the work surface), the ventilation (carbon dioxide at most 0.5%), the disinfection equipment, the running-water basins and the floor and wainscot materials are not checked.
• Before opening or refitting, take the drawing to the health centre that covers your salon.