Seating

UNICUS
Stacking Chair
UNICUS – stacking chair with and without armrests by Prof. Matthias Rexforth which is remarkable for its plain design and the exceptional comfort of its ergonomically shaped plastic shell. Due to its simple shape and its basic elegance there are many opportunities of use.
Its shapely base structure underlines the floating character of the flexible seat shell. Different colours allow for diverse variations in the design.
The sophisticated shape of the shell which is reflected in its high class plastic makes the UNICUS unique. The different surface structures on its front and back allow for a symbiosis of comfortable seating and timeless elegance.
Downloads
- UNICUS_Bar Stool_Productinformation
(130 KB) - UNICUS_Productinformation
(367 KB) - 1350.dwg
(2 MB) - 1350-001.dwg
(2 MB) - 1351.dwg
(3 MB) - 1355.dwg
(2 MB) - 1355-001.dwg
(2 MB) - 1356.dwg
(3 MB) - 1358.dwg
(2 MB) - 1358-001.dwg
(2 MB)
Frame
4-foot frame featuring two continuously and evenly curved side sections from Ø 16 x 2 mm tubular steel in specific cantilever quality (ZSTE420) and connecting 25 x 8 mm flat-steel ribs that feature drill holes to accommodate the seat shell. The side sections are securely welded (clean joints) to the connecting ribs (through metal active gas welding), the set shell and the frame are connected by screws in four different locations.
Frame surfaces
Standard version of the frame: chrome-plated, optionally powder-coated according to the BRUNE ® collection.
Seat shell
Ergonomically shaped plastic shell (polypropylene) with an innovative 2-component “sandwich structure” featuring glass- fibre reinforcements that guarantee high levels of elasticity, toughness and rigidity, a slim outline and full recyclability. The dyed fabric has a lightfastness of 6-8 on the Wool scale (maximum value: 8). A non-slip coating has been applied to the interior surfaces of seats and back supports, while their exterior surfaces have a smooth and high-gloss finish, optionally with seat cushion or fully upholstered according to BRUNE ® collection.
Plastic colours
Standard colours UNICUS plastic seat shell:
White, Slate-grey, Sky-blue, Reed green, Pure orange, Black
Upholstery
Support plate for seat cushion made from approx. 4 mm thick laminated beech wood, featuring several layers of glue, attached to the seat shell with 4 M5 threaded captive nuts and screws. Cover fabric applied with the C-Gex technique, with no use of glue between wood, foam and fabric, optionally with fabric-covered fully upholstered seat shell on the basis of the ergonomically shaped plastic shell.
Seat / fully upholstered shell: | SG/CH 35/50 | approx. 15 mm thick |
SG = specific gravity CH = compression hardness
Armrests upholstery
Armrests optionally padded, 200 mm long. Fabric cover according to the BRUNE ® collection, fabric categories 3, 4, 6, 7 or 8. In case of padded armrests stackability is limited.
Gliders
Standard version: | Plastic gliders | |
Optionally: | Felt gliders |
Dimensions | 1350 without armrests
Dimensions: | B | 55 cm | ||
T | 56 cm | |||
H | 88 cm | |||
SH | 46 cm | |||
Weights: | 5,5 kg | |||
6,0 kg (incl. seat cushion) 5,5 kg (incl. fully upholstered seat shell) |
Dimensions | 1355 with armrests
Dimensions: | B | 59 cm | ||
T | 56 cm | |||
AH | 67 cm | |||
H | 88 cm | |||
SH | 46 cm | |||
Weights: | 6,5 kg | |||
7,0 kg (incl. seat cushion) 6,5 kg (incl. fully upholstered seat shell) |
Stackability
Stacking type: | Front stapling, 6 stackable chairs | |
(In case of padded armrests stackability is limited) 10 chairs on inclined chair stacking trolley 1997 | ||
Required floor space: | Length: 74 cm (on stacking trolley 1997: 110 cm) | |
Width: 55 cm (without arm rests) 59 cm (with arm rests) Height: 112 cm (on stacking trolley 1997: 140 cm) |
Row linking
Row linking system: | Retractable hook-eye system | |
for chair-chair | chair-armchair | armchair-armchair |
Accessories
Chair trolley: Inclined chair stacking trolley: | Model 1995 for the transport of stacked chairs Model 1997 for the storage and transport of approx. 10 stacked chairs |
UNICUS Bar Stool Productinformation
Frame
4-foot frame made from Ø 16 x 2 mm tubular steel (ZSTE420). The upper sections of the rear legs are formed (bent) with a R 27 mm interior curvature. 25 x 8 mm flat-steel frame ribs have been equipped with drill holes to accommodate the seat shell. Frame and foot support made from Ø 16 x 2 mm tubular steel (ZSTE420). The Ø 12 mm lateral connecting bars have been welded to the frame (through metal active gas welding).
Frame surfaces
Base standard chromium-plated, if desired powder-coated according BRUNE collection.
We wish you to point out that the powder-coated of the foot support can be damage by utilization, these are excluded from any warranty.
Seat shell
Ergonomically shaped plastic shell (polypropylene) with an innovative 2-component “sandwich structure” featuring glass- fibre reinforcements that guarantee high levels of elasticity, toughness and rigidity, a slim outline and full recyclability. The dyed fabric has a lightfastness of 6-8 on the Wool scale (maximum value: 8). A non-slip coating has been applied to the interior surfaces of seats and back supports, while their exterior surfaces have a smooth and high-gloss finish, optionally with seat cushion according to BRUNE ® collection.
Plastic colours
Standard colours UNICUS bar stool plastic seat shell:
White, Slate-grey, Sky-blue, Reed green, Pure orange, Black
Upholstery
Support plate for seat cushion made from approx. 4 mm thick laminated beech wood, featuring several layers of glue, attached to the seat shell with 4 M5 threaded captive nuts and screws. Cover fabric applied with the C-Gex technique, with no use of glue between wood, foam and fabric.
Seat cushion: | SG/CH 35/50 | approx. 15 mm thick |
SG = specific gravity CH = compression hardness
Gliders
Standard version: | Plastic gliders | |
Optionally: | Felt gliders |
Dimensions | 1358 without armrests
Dimensions: | B | 56 cm | ||
T | 56 cm | |||
H | 96 cm | |||
SH | 77 cm | |||
Weights: | 7,0 kg | |||
7,5 kg (incl. seat cushion) |
Stackability
Stacking type: | front stacking, 5 stackable chairs | |
Required floor space: | Length: 70 cm | |
Width: 55 cm Height: 120 cm |

Prof. Matthias Rexforth
Matthias Rexforth (born 1963) studied product design at the University of Kassel and received his diploma in 1994. In 1995, he founded his atelier x_products and since then he has designed furniture for national and international companies. Since 2003, he holds a chair for Interior Design at the FH Aachen. His work for BRUNE were, among others, awarded with the Red Dot Award.
Matthias Rexforth is lives and works in Krefeld.