1

I am creating a mobile design in Figma and my selected frame size is 428 x 926 px (for I phone 13 pro max). I want a container to achieve a proper grid system, can you please tell me what should be the size of my container inside the canvas?

2

When you select the standard frame size, it's already in the safe display zone so that you can use the whole space for the grid system. These two resources can freshen up your knowledge and remove any other related confusions about grids & guides.

the-grid-system-building-a-solid-design-layout

designing-with-grid-based-approach

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