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Theorem Seating

Smith Systems

Variety and Versatility. Theorem flexes for two major seating positions — vertical and slight recline — are perfect to support active learning.

 Stackable – Matching Stool

  •  Stack Chair
  • Stack Chair with Arms
  • Mobile Chair with or without Arms
  • Rod Frame Chair and Stool
  • Cantilever Chair
  • Adjustable Height Chair and Stool

Unlike traditional school chairs, Theorem provides the feeling of continuous support, whether the student is sitting up for table surface work or looking up to participate in discussions.

Unique nylon shell offering unmatched strength and flexibility.

The shell rests on the chrome frame, not rivets.

The chair’s seat is contoured 5.5 degrees, which is deeper than your typical stacking chair. This helps position the users’ weight back into the seat for a more supported upright sit. It also makes the angle between the top back and seats more shallow (about 90 degrees), so the user’s upper back is balanced over the lower spine; the lumbar region always stays in contact with the chair.

Shell available in 10 colors.

UL Greenguard Gold Certified

Rod Frame Chair

  • Available with Chrome frame only.
  • Available with nylon or felt glides.
  • Stacks 8 chairs high.

Rod Frame Stool

  • Available with nylon or felt glides.
  • Supportive crossbar serves as a footrest.
  • Unique nylon shell offering unmatched strength and flexibility.
  • Available with Chrome frame only.
  • Stacks 4 chairs high.

Theorem Stack Chair

  • The legs are strong, 14-gauge welded steel. Stacks four chairs high.
  • Unique nylon shell offering unmatched strength and flexibility.
  • Available with Platinum frame only.
  • Felt glides optional – Add “F” to follow Model No.

Theorem Stack Chair with Arms

  • Unique nylon shell offering unmatched strength and flexibility.
  • Available with Platinum frame only.
  • Felt glides optional – Add “F” to follow Model No.

Theorem Mobile Chair  – Arm or Armless

  • Unique nylon shell offering unmatched strength and flexibility.
  • Available with Platinum frame only.
  • Casters allow easy mobility.

Theorem Cantilever Chair

  • Cantilever chairs are harder to tip backwards, making them safer.
  • Unique nylon shell offers unmatched strength and flexibility.
  • Choose optional felt glides.
  • The legs are strong, 12-gauge elliptical welded steel.