They are the units of measurement typically used for industrial property and land in Thailand as shown below:
– Rai: A unit for land size where 1 Rai equals 1,600 square meters (sqm).
– Ngan: Another unit for land size with 1 Ngan equivalent to 400 sqm.
– Sq.wah: Used for smaller land areas, where 1 Sq.wah equals 4 sqm.
– Sqm: A unit for measuring usable area within buildings or sheltered/enclosed spaces.
Scenario:
A warehouse/factory spans 1,200 sqm on a land plot of 2-1-1 Rai.
Explanation:
2-1-1 Rai translates to 2 Rai, 1 Ngan, and 1 Sq.wah. Therefore, the total land area is calculated as (2 x 1,600 sqm) + (1 x 400 sqm) + (1 x 4 sqm) = 3,604 sqm.
The 1,200 sqm warehouse/factory includes all sheltered or enclosed spaces, including a second-floor office, meaning the actual production area is smaller due to the office space within the warehouse.