Koolhaas by Jared Flood


October 2007
Worsted (9 wpi) ?
26 stitches and 30 rows = 4 inches
in Lattice Cable Motif with larger needles
US 6 - 4.0 mm
US 8 - 5.0 mm
125 - 135 yards (114 - 123 m)
Approximately 20”/51 cm unstretched circumference; 7 (8)" [18 (20.5) cm] in length
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Errata available: interweave.com brooklyntweed.com

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Originally appearing in the Holiday Gifts 2007 issue of Interweave Knits magazine, this pattern was inspired by the work of Dutch architect Rem Koolhaas, whose geometric, structural design of the Seattle Central Library is mirrored in the cabled lattice motif. Slanting twisted stitches cross and recross, transforming architectural planes into organic curves that gently hug the head to gather in a striking starburst crown.

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Please note: the stitch patterns used for this accessory include written as well as charted instructions.


  • Hat is worked circularly from the bottom up.
  • This pattern includes two sizes: Small/Medium and Large. Both share the same unstretched circumference but the Large size is worked to a longer length and thus can stretch horizontally to fit larger head sizes.

Finished Dimensions

Small/Medium (Large)

  • Approximately 20”/51 cm unstretched circumference; 7 (8)“ 18 (20.5) cm in length
  • To fit 20-23 (23-25)“ 51-58.5 (58.5-63.5 cm head circumference


Brooklyn Tweed Shelter — 100% American Targhee-Columbia Wool (140 yards/128 meters per 50 grams)

  • 1 skein^
  • Photographed in Shelter, color Northern Lights


Brooklyn Tweed Tones — 100% American Columbia Wool (140 yards/128 meters per 50 grams)

  • 1 skein^


Brooklyn Tweed Imbue — 100% American Merino Wool (104 yards/128 meters per 50 grams)

  • 2 skeins

^For Large size, the required yardage is near to a full skein for Shelter and Tones; consider adding an extra skein.


  • 125 (135) yards 114.5 (123.5) meters of worsted weight wool yarn


  • 26 stitches & 30 rounds = 4”/10 cm in Koolhaas Chart on Size A needle


Size A (for Main Fabric)

  • One 16”/40 cm circular needle and one set of double-pointed needles (DPNs) in size needed to obtain gauge listed
  • Suggested Size: 5 mm (US 8)

Size B (for Ribbing)

  • One 16”/40 cm circular needle two sizes smaller than Size A
  • Suggested Size: 4 mm (US 6)

Tutorials for all special techniques listed below are included in the pattern:

Video — Rib Cabled Cast On
Reading Charts
Video — Cabling Without a Cable Needle
Blocking 101

Skill Level
3 out of 5: Intermediate