Creating New Files & Designing on a Grid System
Master Sketch Grid Systems for Professional Web Design
What You'll Master
File Creation & Setup
Learn to create new Sketch files and configure artboards for multiple device types including mobile, tablet, and desktop layouts.
Grid System Implementation
Set up Bootstrap 4 grid systems with proper column widths, gutters, and responsive breakpoints for professional web design.
Layout Design Fundamentals
Create structured layouts using colored backgrounds, text styling, and proper alignment within grid constraints.
Grid systems streamline workflow by making designs easier to create and code. They're especially helpful for responsive sites optimized for mobile phones, tablets, and desktops.
Setting Up Your Artboards
Create iPhone Artboard
Insert artboard and select iPhone 13 from Apple Devices presets in the Inspector panel
Add iPad Artboard
Insert second artboard and choose iPad 10.2 inch from the preset options
Configure Desktop Artboard
Press A key, select Desktop from Responsive Web presets, then adjust width to 1280 pixels
Confirm the Number of Columns is set to 12.
NOTE: Twelve-column grids dominate web design because they offer maximum layout flexibility. Since 12 divides evenly by 2, 3, 4, and 6, you can create virtually any column combination—from simple two-column layouts to complex multi-section designs—while maintaining mathematical precision and visual harmony.
Verify your settings match the configuration shown below (the Offset value will be automatically calculated when you use the Center button):

, then drag to pan around your design.This practice file has served its purpose. Close it without saving by selecting Delete if prompted—you won't need these settings again.
Artboard vs Grid Width
| Feature | Artboard | Bootstrap Grid |
|---|---|---|
| Desktop Width | 1280px | 1140px |
| Purpose | Full screen size | Content container |
| Gutter Width | Variable | 30px (15px each side) |
| Columns | Flexible | 12 columns |
Dan Rodney's Bootstrap 4 grid template includes mobile, tablet, and desktop grids. Updates available at danrodney.com/blog/sketch-bootstrap4-grid with all 5 screen sizes.
Creating Column Backgrounds
Enable Grid Guides
Show layout columns (Ctrl+L) and rulers (Ctrl+R) to see red guides marking midpoints between columns
Create Sidebar Background
Insert rectangle spanning 3 columns from rightmost red guide, remove border, set white fill at 50% opacity
Create Main Column Background
Insert rectangle from sidebar edge to leftmost red guide, remove border, set white fill at 100% opacity
Text and images align with column edges, while backgrounds align at midpoints between columns. This creates 15px padding around content within the 30px gutter system.
Multiple pages in one Sketch file allow organized design workflow while sharing assets like styles and symbols across all pages. Perfect for multi-screen websites and apps.
Key Takeaways

and select Artboard.
in earlier macOS versions, then select Layout Settings.
to open Sketch's color picker.




to create an additional page.