Grid system
These are the recommendations to set up the values to use as your layout settings in your Sketch files.
Layout behaviors
Grids on breakpoints from S to M are fluid.
From L to XXL breakpoints you can use fixed or fluid grids to fit your needs.
fixed-grid
Sketch configuration
Breakpoint S
320px (Fluid)
360px (Fluid)
375px (Fluid)
Breakpoint M
680px (Fluid)
768px (Fluid)
Breakpoint L
1024px (Fixed & Fluid)
Breakpoint XL
1280px (Fixed & Fluid)
1366px (Fixed)
1366px (Fluid)
1440px (Fixed)
1366px (Fluid)
Breakpoint XXL
1920px (Fixed & Fluid)