Elegant Crochet Afghan
Yarn - acryl or cotton (about 2,5 kg depending on the size you want)
Abbreviations
At first, let's crochet the sample "spider" due to the scheme.
1-st row: 3 chain st., 3BP 1 dc, 3 times of BP 1 dc in every third stitch of the chain, 13 ps, 3BP 1 dc in the sixth st., 4 times of 3BP 1 dc in every third stitch and repeat the pattern one more time, 2BP 1 dc in the last stitch of the chain in the end of the row. 3ps, turn the work.
2-nd row: 3 times of 3BP 1 dc in between the crochet of the previous row (6ps, 1 sc under the arc of ps, 6ps, 4 times of 3BP 1 dc, repeat the pattern.
3-rd row: if you look at the scheme, you'll see, that the quantity of BP dc decreases, and your "spider" grows. 3ps, 1BP 1 dc , 2 times of 3BP 1 dc , 6ps, 3sc, 6ps, groups of crochets etc.
4-th row: 3ps, 2 times of 3BP 1 dc , 6ps, 5sc, 2 times of 3BP 1 dc, repeat the pattern.
5-th row: 3ps, 1BP 1 dc , 3BP 1 dc , 6ps, 7sc, 6ps and continue due to the scheme.
Then the quantity of BP dc increases, and your "spider" is getting smaller.
7-th row: as 3rd.
8-th row: as 1st.
How to calculate stitches for your throw
Thus, having knitted the first row, it will be possible to more accurately determine the width and, if necessary, tie the chain or dissolve it.