If you and your team are designing the pages outside of our application before implementing them in our builder, you can download our design grid from the links below. The pages built on our newer page generator (since the beginning of 2019) scale up to 1200 pixels, so you are not restricted to the 960 pixels width of the center column.
Download the 1200px grid in .psd format from here.
Download the 1200px grid in .sketch format from here.
Download the 960px grid in .psd format from here.
Download the 960px grid in .sketch format from here.
If you are just looking to learn how to measure 1200px in the builder without an external design grid, watch the short video below, showcasing how you can do that with a box shape from the editor.