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Gera Fungsi Utama: Kerusi by Alessandra Delgado

Gera Fungsi Utama: Kerusi by Alessandra Delgado is a highly esteemed winner of the very prestigious 2026 A' Design Award Emas in Reka Bentuk Perabot Competition Category.


EmasPerabot· 2026

Gera Fungsi Utama: Kerusi

by Alessandra Delgado

Client: Alessandra Delgado Design

A' Design Award Emas Winner in Perabot Category

50,776

Verified Award Winner

Verify Award Status for #173664

Colors

The Design

About Gera Fungsi Utama: Kerusi

Teks Buku: Gera ialah reka bentuk kayu yang diilhamkan oleh perabot moden Brazil dan kejelasan struktur yang terdapat dalam karya Geraldo de Barros. Dihasilkan daripada kayu jequitiba Brazil yang diperakui dan kulit semula jadi, ia tidak mengandungi sebarang komponen logam atau pengikat yang kelihatan. Sambungan kayu tersembunyi mengekalkan kesinambungan visual, manakala permukaan kulit yang ditegangkan bertindak balas terhadap tubuh. Melalui pengurangan bahan, sumber yang bertanggungjawab, dan ketepatan struktur, karya ini menyuarakan satu penyiasatan tentang ergonomik dan ketahanan yang mampan.

The Recognition

About the A' Design Award Emas

Gera Fungsi Utama: Kerusi ialah pemenang A' Design Award Emas, pengiktirafan yang amat berprestij yang dianugerahkan kepada reka bentuk kelas pertama, menakjubkan dan cemerlang. Pemenang Emas ialah ciptaan yang sangat inovatif, berwawasan dan berkilau memukau yang mencerminkan kegeniusan, kebijaksanaan dan kepakaran pereka bentuknya. Gera Fungsi Utama: Kerusi diharapkan menjadi ciptaan yang sangat dipuji, perintis aliran dan monumental yang memberikan nilai tanpa tandingan. Reka bentuk pemenang A' Design Award Emas ini ialah projek yang menakjubkan dan disegani yang memberi manfaat besar kepada dan memajukan batas seni, sains, reka bentuk dan teknologi. Gera Fungsi Utama: Kerusi mencetuskan perasaan keinginan yang kuat, membangkitkan semangat, menggalakkan kreativiti dan memukau kita.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties
Gera Chair redefines solid wood seating through structural minimization. Developed exclusively with wood and leather as load-bearing systems, it eliminates metal reinforcement and visible fasteners. The tensioned leather seat operates as a structural membrane, while concealed joinery ensures load transfer and rigidity. Weighing 4 kg, the chair achieves resistance through geometry and material behavior rather than mechanical devices.
Dimensions & Packaging
Dimensions W 525 mm x D 570 mm x H 830 mm.
Weight 4.0 kg.

The geometry was defined through ergonomic studies to ensure lumbar support and seating stability. The curved back rail follows the natural contour of the spine, while the structural proportions allow high resistance with reduced mass. The low overall weight facilitates transport, handling and spatial flexibility without compromising durability.
Tags
Chair, Gera Chair, Wood, Dinning Chair, Wooden Chair, Sustainable materials
Production Technology
The chair was developed through structural reduction and load optimization studies. Certified Brazilian jequitiba was selected for its favorable density to weight ratio, fiber stability and bending resistance, allowing minimized cross sections without metal reinforcement. Mortise and tenon joints ensure axial load transfer and torsional rigidity. The seat, composed of two bonded natural leather layers, operates as a tensioned membrane fixed beneath the frame, distributing loads dynamically while maintaining a total mass of 4 kg.
Design Challenge
The primary challenge was achieving structural integrity through material behavior rather than reinforcement. Identifying a wood capable of sustaining reduced sections without compromising resistance led to the selection of certified jequitiba. Designing a suspended leather seat functioning as a structural membrane required extensive prototyping and geometric refinement. Achieving a 4 kg solid wood chair demanded continuous structural recalibration and concealed joinery precision.
Research
This is applied design research focused on structural efficiency through material minimization. The objective was to develop a lightweight, durable chair using only wood and leather as load-bearing systems. Methodology included iterative prototyping, ergonomic validation and material performance testing. Results demonstrate that geometry and tensioned leather behavior can replace mechanical components, achieving structural stability at 4 kg. The research advances sustainable, repairable furniture production through reduction-based design logic.
Inspiration
Gera Chair originates from an investigation into structural reduction in Brazilian modernism, particularly the constructive clarity found in the work of Geraldo de Barros. The project explores how geometry, proportion and material logic can generate resistance and comfort without auxiliary mechanisms. Rather than referencing form, the design references structural intelligence, translating modernist principles into a contemporary reduction-based seating system.
Project Duration
The project started in September 2024 in Sao Paulo, Brazil. It was presented as a prototype at Salone del Mobile in Milan in April 2025. Industrial development and final production adjustments were completed in May 2026 in Uba, Brazil.
Operation Flow
Gera Chair offers intuitive interaction. Weighing only 4 kg, it can be easily moved and repositioned. As the user sits, the leather gently adapts to body weight, enhancing comfort without adjustments or mechanisms. The curved wooden structure supports the back naturally. Comfort is achieved through the behavior of materials and form rather than mechanical systems, resulting in a simple and immediate user experience.
Patents
pendind patent number
Image Credits
Photografer Alessandra Delgado Design, 2025

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