This can be made using anything from fine 4ply cotton through to 12 ply
For a baby blanket use baby weight yarn and the appropriate hook
For a throw use DK and up

Materials
H/8-5.00mm hook
1800 meters DK/8ply Yarn
This can be made in any yarn you choose with the appropriate hook for that yarn
Abbreviation’s US Terminology
Chain – Ch
Slip Stitch - Slst
Stitch – St/sts
Space - Sp
Skip a stitch – sk
Single crochet - Sc
Double crochet – Dc
Back post double crochet – Bpdc
Front post double crochet – Fpdc
3 double crochet together over the next 3 stitches - dc3tog
5 double crochet together over the next 5 stitches - dc5tog