Bootstrap - The most loved CSS framework amongst the UI developers lets you use a grid system of 12 columns. So that means, If you want to create columns with same sizes within a Row, you can choose column numbers between 1,2,3,4,6 and 12.

Bootstrap-5-8-10 Lets you define more number of equal sized columns, i.e column 5, column 8 and column 10, while using the bootstrap grid system.

• Download Bootstrap-5-8-10, and add to your html file below bootstrap.css
• use columns as, col-*-5-12: for five column layout, col-*-8-12: for 8 column layout, col-*-10-12: for 10 column layout

Example: you can see this plunker