Here are Lucy’s instructions for various size blankets:
The Meadow Blanket starting chain should always be a multiple of 2.

Here is a list of suggested starting chains for different size blankets :

Tension sample (18 cm/6” width): Chain 34

Single/twin blanket (120cm/48” width): Chain 198 * This is my standard blanket size

Baby blanket (70cm/28” width): Chain 116

Lap throw (90cm/36” width): Chain 148

Double bed blanket* (180cm/72” width): Chain 290 requires two yarn packs

King bed blanket* (210cm/84” width): Chain 340 requires two yarn packs