A slab serif is a sub-type of serif fonts that has block-shaped serifs. A popular example of a slab serif font is the Rockwell font family. Slab serifs may also be referred to as mechanistic, square serif or Egyptian. Their strong and sturdy appearance makes them great candidates as headline and display fonts. This collection of fonts presents some excellent and free slab serif fonts.
1. Museo Slab 500
2. AW Conqueror Slab
This slab serif font is part of the Conqueror free family of fonts designed by award-winning type designer, Jean François Porchez. The font family was inspired by the 60-70′s spirit.
This slab serif font is by Manfred Klein. Nilland is free, but you’re encouraged by the author to make a charitable donation to Doctors Without Borders especially when you employ his fonts in commercial projects.
4. Klein Slabserif
Another slab serif font by Manfred Klein, Klein Slabserif distinguishes itself with its intriguing (and almost awkwardly truncated) block-shaped serifs.
5. Bullpen Heavy
Part of the Larabie Collection — a set of fonts by Ray Larabie, a Canadian font designer living in Japan — Bullpen Heavy is a strong and "masculine" font.
8. Nadia Serif
Designed by Switzerland-based graphic designer, Nadia Knechtle, Nadia Serif is a clean, thin but strong slab serif font.
9. Indento Bold
Indento is a futuristic slab serif font by Mugur Mihai. The characters’ brackets are indented inward, resulting in a distinctive aesthetic.
10. Tertre Extra Bold
Tertre, a font family inspired "from the French signage tradition," is a good display face that works well when utilized in terse text blocks.