These versatile little squares can be made with any weight of yarn, just adjust your hook size accordingly (veer on the small side).
I made the sample with Stylecraft Special DK yarn, and a 3.5 mm hook.
I use US crochet terms.
ch/s – chain/s
st/s – stitch/es
sc – single crochet
hdc – half double crochet
dc – double crochet
tr – treble crochet
sl st – slip stitch
Step 1: With ‘cobble’ colour ch 5 (counts as ch 1 and 1 tr) [fig. 1]
Step 2. Work 15 tr into 5th ch from hook. Join with a sl st into top of ch 4. [fig. 2 & 3]
Step 3. Cut yarn, fasten off and weave in ends. [fig. 4] (16 tr sts)
Step 4. Join outer square colour into the top of a tr and work 1 sc. [fig. 1]
Step 5. *Chain 4, miss 3 sts, 1sc into next stitch; repeat from * 2 times. [fig. 2 – 4]
Chain 4, join into top of beginning sc with a sl st. [fig. 5]. Ch. 1.
Step 6. *into the next ch. 4 space work 1sc, 1 hdc, 1 dc, 2 ch, 1 dc, 1 hdc, 1 sc
[fig. 1 & 2]
Step 7. Ch. 3 [fig. 3]
Step 8. repeat from * both steps 6 & 7 three more times. [fig. 4 & 5]
Step 9. join ch. 3 to the top of beginning sc with a sl st. [fig. 6]
Step 10. Fasten off & weave in ends. [fig. 1 & 2] Because the centre circle has a larger circumference than the chains the outer square is worked into, it bulges out into our cobble – when working it will bulge to the back – as you finish, just pop it out to t he front. [fig. 3 & 4] And you’re done, one Cobblestone Square.
Joining ‘as you go’
To join squares together as you go, saving a lot of sewing together afterwords, work your next square up as before up to and including step 7.
Then into the next ch. 4 space work 1sc, 1 hdc, 1 dc, 1 ch. [fig. 1 – 6]
Step 11. Instead of working another ch you must now catch in the square next door by working 1 sl st. into it’s corresponding ch 2 space . [fig. 1 & 2]
Step 12. Work 1 dc, 1 hdc, 1 sc (still in the same chain 4 space) [fig. 3]
Step 13. Ch 1, work 1 sl st into corresponding ch 3 space in adjoining square, ch 1 [fig. 4]
Step 14. Work 1 sc, 1 hdc, 1 dc in next ch 4 space. Then in place of the chain 2 work 1 sl st into the square to the right’s ch 2 space, and then 1 sl st into the square above’s ch 2 space. [fig. 5]
Step 15. Continue working around the square catching in the next square where required in the same way by substituting a chain for a joining sl st. [fig. 6]
When joining squares I generally lay out my centre circles and then join them together working form top to bottom and right to left.
To make a Cushion Cover
1. Make and join enough cobblestone squares until your square is just smaller than your cushion pad. Then edge this by joining your yarn into a corner ch space.
a) ch 4 (represents 1 hdc & 2 ch); 1 hdc in same space. [fig. 1 & 2]
b) 1 hdc in next st, miss 1 st, 1 hdc in next st, 1 hdc in ch 3 space, 1hdc, miss 1 st, 1 hdc
[fig. 3 & 4]
c) At the join between the 2 squares you need to work 2 hdc together over the 2 corners – so yarn around hook, push hook into 1st corner ch space, yarn around hook and pull through a loop [fig. 5] then yarn around hook again, push hook into 2nd corner ch space, yarn around hook and pull through a loop [fig. 6]. You should now have 5 loops on your hook. Yarn around hook again and pull through all loops on hook. [fig. 7]
d) Carry on like this, working 5 hdcs along each small square side and working 2 hdc together over corner joins until you get to the corner. Into the corner ch space work 1 hdc, ch 2, 1 hdc.
e) Continue around the whole square and join to the beginning ch. 2 with a sl st.
2. For the back make a large plain granny square the same size as the front.
3. Place back and front together (wrong sides together) and pin; work a row of sc, catching both layers in together around all 4 sides (remembering to put the cushion pad in! In the corners spaces work (1 sc, 1 hdc, 1 sc). Fasten off and weave in ends.
4. For an opening cushion cover catch both layers in around 3 sides only. Also work a row of sc on each of the 2 open edges.
5. In the open edges insert Zip or sew on snap fastenings/buttons to close.