Graffiti Art Generator

Style guide · heavy & square

Block letters

The most legible style in graffiti: square corners, flat bar ends and even stroke widths, built to be read from a moving train rather than decoded up close.

Where the style comes from

Block letters are graffiti borrowed from signage. The writers who pushed this direction in the seventies wanted pieces that owned a whole wall the way a billboard does — big, square, and impossible to misread at speed. The style that became known as blockbuster is less about handwriting and more about layout: the letters are drawn like packing crates, sized to fill the space edge to edge.

That utilitarian origin is why the style still reads as "clean" today. Nothing in a block piece is decorative by accident. Every bar is a measured stroke, every corner a deliberate right angle, and the design work happens in the spacing long before any colour goes in.

How the letters are built

Draw the skeleton with a ruler mindset

Block letters start as a thin skeleton of straight bars and measured curves. Curves are allowed — an O is still an O — but every curve is treated as a rounded corner, not a flourish.

Give every bar the same width

The signature of the style is consistency. Horizontal and vertical bars share one stroke width, and that width stays constant across the whole word. The moment one bar fattens, the piece stops looking engineered.

Keep corners decisive

Square corners are the identity of the style. Where two bars meet, they meet crisply. A corner that rounds off halfway makes the letter look inflated, and the piece drifts towards bubble lettering without any of its charm.

Set spacing before adding weight

Block letters tolerate tight spacing better than most styles, but the gaps still have to be decided at skeleton stage. Equal gaps between letters, slightly smaller gaps inside pairs that visually lean together.

Words you will hear

Bar
A straight stroke of a letter — the full length of an L, the three arms of an E.
Cap height
The uniform height of the letters. In block styles every letter shares it, with no ascenders left loose.
Bar end
The flat cut where a stroke terminates. Flat bar ends are what make the style read as block rather than rounded.
Tracking
The overall spacing of the word. Block lettering usually tightens tracking until the piece feels like one solid unit.

What usually goes wrong

  • Bars of uneven width — one heavy vertical next to a thin horizontal and the whole word looks hand-drawn in the wrong sense. Pick the width once and enforce it everywhere.
  • Accidentally rounded corners — usually a leftover from sketching fast. Go over the skeleton again and sharpen every junction before thickening.
  • Letters fused edge to edge — tight spacing is a look, but zero spacing is a smear. The gaps between letters should still be measurable.
  • Ignoring the counters — a block A with a closed counter is a triangle, not a letter. Counters stay open even when the piece gets heavy.

Try it in the generator

The studio's Blockbuster style is this family's direct descendant, and Chunky and Shaded are the rounded and shadowed branches of the same idea. Type a word and compare all three — the export is a PNG or a true vector SVG, free, in your browser.

Block Letters — questions

Are block letters and blockbusters the same thing?

Close enough that the words swap freely. A blockbuster is block lettering pushed to wall scale — sized to cover a whole panel and read from a distance. Every blockbuster is block lettering; not every block piece is built at blockbuster scale.

Why do my block letters look cramped?

Because the weight was added before the spacing was set. Bar width and gaps fight for the same space, so decide the gaps first at skeleton stage and the thickened letters will keep them.

Can block letters be rounded?

They can borrow a rounding on the outer corners and stay block — Chunky is exactly that compromise. But once every corner rounds, the piece has crossed into bubble lettering and should be designed with that method instead.

Make your own block letters

Type a word, pick the Blockbuster style, and export a PNG or true vector SVG — free and entirely in your browser.

Open the generator →