The maximum value for a tinyint in SQL Server is:
0 through 255
And the byte size is: 1 byte
other maximum values:
BigInt: -9223372036854775808 through 9223372036854775807 (8 bytes)
Int: -2147483648 through 2147483647 (4 bytes)
SmallInt: -32768 through 32767 (2 bytes)
