Crochet Pattern: Shell Block Afghan

This pattern was inspired by an e-mail request from

If you use this pattern, please sign my Guest Book. I would like to know which patterns and sizes are most used, in order to create further popular designs.


The yarn and hook required for this pattern have been deliberately left unspecified. The crafter should choose the yarn of their preference, and create a sample square of one block of the pattern given below.
If the sample seems too tight, repeat with a larger hook. If the sample seems too loose, repeat with a smaller hook.
Measure the sample and calculate the number of pattern repeats required to give the desired afghan size.

ABBREVIATIONS: (English notation)

Version 1 : Staggered

Staggered Shell Block


Version 2 : Vertical

Vertical Shell Block

As above, but replace Row 2 with: Row 2: Ch2 (counts as 1st tr), 4tr, *[ch1, (shell in centre stitch of shell below) 5 times, ch1, 5tr] repeat from * for number of pattern repeats required.

Notes: The pattern may be repeated fewer times to produce smaller items such as:

The blocks could also be worked in different colours, to give a patchwork effect. Both versions could be used alternately in the same piece for added interest.
Use your imagination, and be as creative as you can!

(c) 1997 Steph Thornton, all rights reserved. Permission for electronic duplication of this pattern is granted with the limitation that this entire notice remain intact. This pattern may not be reproduced in hard copy (with the exception of personal use), or for profit without my written permission. Contact:

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Author : Steph Thornton.
Last modified on : 30th January 1998.