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Hard Difficulty

How to Draw Block Letter S

Block letter S is the alphabet's most demanding curve. Two opposing arcs — upper and lower — must mirror each other across an invisible diagonal axis. The lower bowl is almost always slightly wider and slightly heavier than the upper bowl, mirroring B's optical balancing trick. Get S right and you've cracked one of the hardest letterforms in any alphabet.

Letter S in Block-Letter Styles

Block lettering covers a range of sans-serif styles — from heavy poster blocks to condensed industrial faces. Here's how the letter “S” looks across the most common block variants.

S

Heavy Block

S

Bold Italic

S

Industrial

S

Poster

S

Condensed Bold

S

Stencil Lite

How to Draw Uppercase Block “S”

Block S is one continuous stroke that flows from the upper terminal, curves left and down through the centre, then curves right and down to the lower terminal. The lower curve is slightly wider than the upper.

How to Draw Lowercase Block “s”

Lowercase 's' is the same shape as the capital, sized to x-height. Two opposing arcs.

Letters Often Confused with Block “S”

Spacing & Kerning Companions for “S”

S has gentle curves on both sides, making it space evenly with most letters. Pairs with other curved letters (SO, SC) need slight tightening.

Words Starting with “S” in Block Lettering

These uppercase words look particularly strong in block lettering. Use them in our cursive generator when you want a script comparison.

STORMSTRIKESPARKSTEELSAVAGESHADOW

Practice Tips for Block Letter “S”

  • 1Sketch the S as a faint figure-8 first, then erase the connecting lines.
  • 2Make the lower bowl about 5–10% wider than the upper — same trick as B.
  • 3Practise the centre crossover — it should be a smooth S-curve transition, not a sharp angle.
  • 4Match the upper and lower terminal styles exactly.
  • 5Try drawing S at three sizes and check the balance at each — small Ss often need to be squatter.

Frequently Asked Questions about Block Letter S

Why does S look so wrong when I draw it freehand?
Because two perfectly mirrored opposing curves are very hard to draw without slight asymmetry. Combined with the optical-weight rule (lower must be bigger), even small mistakes are visible.
Should the centre of S be straight or curved?
Always curved — block S is a continuous flowing line. A straight middle segment would make it look like a Z or a compressed sigma.

Learn More

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