When designing for web in Photoshop, I often need a grid to help me with my layout. Guides are a great tool to use, but placement of the guides is the tricky part. How do I know the space is mathematically correct?
Here’s a quick way to add grids to your design without the need for measuring.
Start by drawing a rectangle using the shape tool. It doesn’t matter how big it is.
Next, duplicate the shape. (Option/alt click it and drag to the right to copy).
Create as many shapes as columns you desire in your grid.
Select all shapes and click Edit > Transform (Command/ctrl + T).
Stretch them to the width of the area you want broken into columns. In my case, I’m using the whole page.
Now simply add vertical guides to the right of each rectangle.
Tip: Photoshop will snap the guide to the edge of your rectangle for you, which saves a lot of time.
Finally, delete the rectangles and you’ve created a perfect grid without having to measure anything!