Dear Karman,
Kindly find the following answers ,
1- Yes , crew means team in our case
2- Yes , Carpenter is only one person
3- Yes , “<span style=”color: #000000; font-family: Roboto; font-size: 15px;”>20% carpenter means if we have a crew of 10 people, then the team includes 2 Carpenters.” </span>
4- we didn’t assign any equipment resource in our case but we mentioned it in the sheet for you , to be sure that you understand the concept and also you can apply it in requirements also not only labors.