L1 Collection

L1 Office Banner

True to Allseating's design philosophy, L1 provides optimal, accessible and intuitive ergonomics for all users.

Indoor Air Quality Certified

Prices effective January 2nd, 2024.


  • From private offices to open-concept work spaces, L1’s design fits seamlessly into an array of settings. Living up to its namesake by providing all-day support, L1 remains affordable proving style, comfort and health never need to be sacrificed in the name of cost.
  • Birch frame and base features black mechanism and black carpet casters.
  • Optional adjustable headrest [fabric matches seat]
  • Optional adjustable lumbar.
  • Headrest and Lumbar cannot be field installed.


Overall [Synchro Tilt]: 38.5" - 43" H | 27.5" W | 27.5" D
Seat [Synchro Tilt]: 15.5" - 20" H | 20" W | 20" D
Back: 22" H | 19.5" W


200+ textiles to choose from.
Back COM: 1 yard
Seat COM: 0.75 yards
Full COM: 1.75 yards


12 year comprehensive parts and labor, with weight limit of 350 lbs. Click here to view details.

Available in black or birch with optional polished aluminum base.

Back mesh available in M2 in 9 colors, M9 in 10 colors and M10 in 4 colors.