error reducing the length of a nvarchar(4000) column

The maximum allowable table row size is 8060 bytes. Dose the table has other columns which lead to this overflow?

Please have a look at this sample:

create table Test 
(id int not null, 
 char1 char(8000) not null, 
 char2 char(8000) not null)

more info:

Row sizes exceeding 8060 bytes in Sql 2005

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Saeid Hasani [sqldevelop]