Squares of 39 stitches to start. All sock yarns. Each square is ~4g of yarn and 799 stitches.

18 squares wide.

Yarn used (in order starting from bottom left row):
Row 1:
Woolen Mill St. Yarns in Rue
Knit Picks Stroll Tonal in Kindling
Manos del Uruguay in Butia
Unknown (Opal something)
Knit Picks Stroll Tonal in Blue Violet
Deborah Norville Serenity Sock in Thyme
Woolen Mill St. Yarns in Wicked
Knit One Crochet Too Crock-o-Dye in Spruce
Unknown
Unknown
Knit Picks Stroll Tonal in Thunderhead
Lion Brand Sock-Ease in Rock Candy
Claudia Hand Painted Yarns in Buckeye
Madeline Tosh Sock in Cardinal
Unknown from Jejune
Unknown
Ella Rae Lace Merino in 124-Olive
Deborah Norville Serenity Sock in Chile

Row 2:
Knit One Crochet Too Crock-o-Dye in Chocolate
Unknown
Deborah Norville Serenity Sock in Burgundy
Knit Picks Hawthorne in Happy Valley
Zen Garden Arts in Ice Cream Dessert
Manos del Uruguay Alrgria in Pindo
Unknown
Knit One Crochet Too Crock-o-Dye in Petrol
Unknown
Unknown
Patons Kroy Socks in Blue Striped Ragg
Unknown from Jejune
Rocky Mountain Dyeworks Kicking Horse Sock in unknown color from Jejune
Schaefer Nichole in unknown
Unknown
Leading Men Fiber Arts Callback in Anne with an E
Claudia Hand Paints in Mudslide
Knitted Wit Gumball in Plump

Row 3:
Plymouth Yarns Happy Feet in 29
Knit Picks Felici in Maple Leaves
Unknown
Unknown
Knit Picks Hawthorne in Concordia
Claudia Hand Painted Yarns in Argyle Socks
Crazy Zauberball in 1153 1567
Knit Picks Comfy Fingering in Jalapeño
Premier Yarns Serenity in Aquamarine
Crazy Zauberball in 1153 2137
Knitted Wit Gumball in Oregon Sky
Unknown
Unknown
Knit Picks Hawthorne in St. Johns
Tanis Fiber Arts Red Label in Iris
Madeline Tosh Sock in Vishnu
Anzula Dreamy in Mariana
Invictus Beyond in Roll Credits

Row 4:
Unknown
Knit Picks Stroll Tonal in Foliage
Woolen Mill St. Yarns in Pumpkin
Unknown
Socks That Rock in Portland Plaid
Knitted Wit Gumball in Paprika
Unknown from Jejune
Unknown
Plymouth Yarn Happy Feet in 2786
Unknown
Knit Picks Hawthorne in Alberta Arts
Knitted Wit Gumball in Buckle My Shoes
Araucania Huasco/Botany Lace in unknown color
Madeline Tosh Sock in Chicory
Knit Picks Hawthorne Kettle Dye in Turkish Delight
Manos del Uruguay Alegria in Macachines
Knit Picks Hawthorne in Montavilla
Patons Kroy in Bramble Stripes

Row 5:
Knit Picks Hawthorne in Ladd’s Addition
Tanis Fiber Arts Blue Label in Flamenco
Tanis Fiber Arts Red Label in Saffron
Manos del Uruguay Alegria in A Otono
Knitted Wit Gumball in Yellow Brick Road
Another Crafty Girl Strong Sock in Gamut
Malabrigo Sock in Ivy-138
Schaefer Nichole in Gertrude Ederle
Madeline Tosh Sock in Spectrum
Fiber Seed Sprout Singles in Elephant
Knit Picks Hawthorne in Nob Hill
Manos del Uruguay Alegria in Agave
Unknown
Madeline Tosh Sock in Tern
The Lemonade Shop Simple Sock in Stormy Day
Knitted Wit Gumball in Glaciel Pace
Unknown
Knit Picks Felici in Spooky

Row 6:
Knit Picks Palette in Asphalt Heather
Unknown
Araucania Ranco in Purple
Knit Picks Stroll Tweed in Dill Heather
Malabrigo Sock in 854 Rayon Vert
Patons Kroy Socks FX in Celestial Colors
Madeline Tosh Sock in Mala
Tanis Fiber Arts Cosmic Blue Label in Sand
Unknown
Manos del Uruguay in Leo
Unknown
Knit Picks Comfy Fingering in BlackBerry
Knit One Crochet Too Crock-O-Dye in Plum Black
Unknown
Knitted Wit Gumball in Blue
Space Cadet Oriana in Dept. of Rocket Science
Madeline Tosh Sock in Vanilla Bean
Knit Picks Gloss Fingering in Robot

Row 7:
Nightfall Sock Set in Copper
Unknown
Madeline Tosh Sock in William Morris