School Chair T-shaped on Square Tube, No.4-6

The T-shaped school chair on a square tube No.4-6 is a student chair for primary and middle school with adjustment across three size groups. Its main distinction is the square-tube frame: it has crisp edges, higher torsional rigidity and a clean look that suits modern classrooms.

The frame is made of square tubes 25×25 and 20×20 mm with a powder coating. The seat and backrest are bent-glued plywood 8.5–9.5 mm thick finished with a colourless water-based lacquer; the corners and the front edge of the seat are rounded to prevent injury. Height is adjusted with screws through the frame holes via a plastic transition bushing to 380 mm (No.4), 430 mm (No.5) and 460 mm (No.6), and the seat depth is additionally adjustable. Plastic tips on the frame ends prevent floor damage and pupil injury.

The model meets sanitary requirements for school furniture and suits classroom fit-outs within public procurement. We help complete an order for a class or an entire school, provide a manufacturer warranty and deliver across Ukraine — convenient for tender departments and procurement officers.

• Overall dimensions: 380×424–465×775–855 mm
• Size groups: No.4–6, seat height 380–460 mm
• Weight: 4.56 kg
• Seat and backrest: bent-glued plywood 8.5–9.5 mm, water-based lacquer, adjustable depth
• Frame: square tubes 25×25 and 20×20 mm, powder enamel
• Frame colours: yellow (RAL1018), lime (RAL6018), grey (RAL7035), graphite (RAL7024)

How does a square tube differ from a round one? The square profile handles torsion better and gives the frame a stiffer, more technical look; for a classroom this means a stable, sturdy structure under daily loads.

What age is the chair suitable for? Size groups No.4–6 (seat height 380–460 mm) cover pupils from roughly primary to middle grades — one model can be adjusted for different classes.

Is a tool needed to change the height? Height is changed with screws through the frame holes; the caretaker adjusts it independently, and a plastic transition bushing keeps the leg firmly fixed.