Simple Grid: Lightweight and responsive CSS grid
Simple Grid is another mini CSS framework providing a responsive 12-column grid system and some extra classes for getting started with typography.
Freebies tagged: grid
Bootstrap grid template for Photoshop
A useful Bootstrap grid template for Photoshop for website design. It works great on 4K, 5K and Retina monitors. Released by Madsen Vale.
Minigrid – Minimal cascading grid layout
Minigrid is a minimal and lightweight (it’s just 842 bytes compressed) javascript plugin for creating masonry-style grid layouts.