The flag of the Kingdom of Thailand shows five horizontal stripes in the colours red, white, blue, white and red, with the middle blue stripe being twice as wide as each of the other four.
The three colours red-white-blue stand for nation-religion-king, an unofficial motto of Thailand. The flag was adopted on 28 September 1917, according to the royal decree about the flag in that year. The Thai name for the flag is Thong Trairong, which simply means tricolour flag.
Most mass-produced flags are commonly 150x90cm / 5x3' or 90x60cm / 3x2', which will often vary from the official size ratio. We now offer a custom-manufactured official size option for our many of our flags.