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The OK505GC stackable interlocking plastic conference chair is a versatile, commercial-grade seating solution engineered to meet the rigorous demands of high-usage public and private spaces. Developed as a universal seating option for educational institutions, corporate conference centers, religious venues, event rental companies and government facilities, this chair balances exceptional durability, user comfort, space efficiency and customizable functionality to adapt to diverse application scenarios.
At the core of the OK505GC’s design is its integrated injection-molded polypropylene (PP) seat-and-back shell, a one-piece construction that delivers superior impact resistance, long-term structural stability and effortless daily maintenance. The smooth, non-porous PP surface is easy to wipe clean and sanitize, making it ideal for high-traffic environments where hygiene and quick turnaround between events are critical. The ergonomic contour of the seat and backrest provides optimal support for extended periods of sitting, reducing user fatigue during long training sessions, conferences or events.
Complementing the durable PP shell is a robust four-leg steel frame, available in two high-quality tube specifications: Ø22×1.1mm standard tube or Ø19×1.0mm optional tube, allowing customers to select the perfect balance of weight, strength and cost for their specific project needs. The frame is available in three finish options: durable electrostatic powder coating in black or gray, polished chrome plating for a sleek, modern aesthetic, and genuine stainless steel for exceptional corrosion resistance in outdoor or humid indoor environments.
One of the OK505GC’s most valuable and unique features is its integrated welded hook connectors on the chair frame. Unlike ordinary conference chairs that require separate, detachable connectors to form rows, the OK505GC’s hooks are permanently welded to the frame, allowing adjacent chairs to be quickly and securely linked together in straight or curved rows without the need for special tools. This design eliminates the hassle of loose or lost connectors, and ensures a uniform, professional appearance in auditoriums, churches, conference halls and performance venues.
Another key feature of the OK505GC is its space-saving stackable design, which supports vertical stacking of up to 15 chairs. This capability drastically reduces the storage footprint required when the chairs are not in use, and simplifies rapid setup, breakdown and transportation for event rental companies, multi-purpose venues and training facilities that frequently reconfigure their seating layouts. The hooks are positioned to fit seamlessly within the stacking structure, though scratch protection is recommended during packing and handling to preserve the frame finish.
To further enhance its versatility for educational and training environments, the OK505GC is compatible with a range of optional accessories. These include a clip-on writing tablet, perfect for note-taking during training sessions, seminars or exams, as well as fixed or hanging book baskets for storing textbooks, notebooks and personal items. These accessories transform the basic conference chair into a fully functional training chair, making it an ideal all-in-one solution for schools, universities, corporate training centers and tutoring facilities.
The OK505GC is not only designed for performance and functionality, but also for compliance with global safety and quality standards. It has passed rigorous SGS static load testing of up to 600 lbs (approximately 272 kg), demonstrating its exceptional structural integrity and ability to withstand heavy, continuous use. Additional compliance certifications are available upon request, including CE, ISO 9001, EN 16139, EN 12520, REACH SVHC, California Proposition 65, and BS 5852 fire retardant testing, ensuring the product meets the regulatory requirements of markets worldwide.
Available in a wide range of frame colors and customizable PP shell finishes, the OK505GC can be tailored to match the aesthetic of any venue, from modern corporate conference rooms to traditional church sanctuaries, educational campuses and outdoor event spaces. Custom logo printing is also available on the back or underside of the PP shell, allowing brands, venues and educational institutions to personalize the chairs with their own branding and messaging.
Whether you are furnishing a 1000-seat auditorium, a 50-person training room, a church sanctuary, a corporate conference center or an event rental fleet, the OK505GC stackable interlocking plastic conference chair offers a reliable, cost-effective and versatile seating solution that combines commercial-grade durability, user comfort, space efficiency and customizable functionality to meet the unique needs of your project.
Specification Item | Standard Value | English Notes |
|---|---|---|
Overall Dimensions | 49 W × 50 D × 80 H cm | Approximate overall size of the assembled chair |
Seat Height | 44 cm | Height from floor to the front edge of the seat |
Seat Dimensions | 43 W × 38 D cm | Width and depth of the seating surface |
Backrest Dimensions | 43 W × 39 H cm | Width and height of the backrest |
Seat & Back Material | Integrated injection-molded polypropylene (PP) | One-piece PP shell for durability and easy cleaning |
Frame Tube Options | Ø22 × 1.1 mm / Ø19 × 1.0 mm steel tube | Two optional steel tube specifications for different load demands |
Frame Finish Options | Powder coated steel / Chrome-plated steel / Genuine stainless steel | Multiple finishes for indoor and outdoor use |
Static Load Test | SGS certified 600 lbs (≈272 kg) | Maximum static load capacity tested by SGS |
Maximum Recommended Stack | 15 chairs | Maximum vertical stacking quantity for storage |
Optional Accessories | Writing tablet, Fixed/hanging book basket, Custom logo printing | Customizable accessories for different scenarios |
Standard MOQ | 300 chairs per color | Minimum order quantity per color |
Production Lead Time | 3–4 weeks | Production lead time after order confirmation |
Integrated Welded Hook Connectors for Fast Row Setup
The OK505GC’s permanently welded frame hooks eliminate the need for separate, detachable connectors, allowing chairs to be quickly linked into stable, uniform rows without tools. This design saves valuable setup time for event rental companies and multi-purpose venues, and ensures a neat, professional appearance in any space.
Commercial-Grade Durability with SGS 600 LBS Load Certification
The chair has passed rigorous SGS static load testing of up to 600 lbs, demonstrating exceptional structural integrity. The one-piece PP shell and robust steel frame deliver long-lasting performance in high-traffic commercial environments, reducing replacement and maintenance costs over time.
Space-Saving Stackable Design for Efficient Storage
Supporting vertical stacking of up to 15 chairs, the OK505GC drastically reduces the storage space required for unused seating. This is particularly valuable for event rental companies, training facilities and multi-purpose venues that need to store large numbers of chairs when not in use, and simplifies transportation between event locations.
Ergonomic Comfort for Extended Sitting
The ergonomically contoured PP seat and backrest provide optimal lumbar and thigh support, reducing user fatigue during long conferences, training sessions or events. The smooth, non-porous surface is easy to clean and sanitize, making it ideal for high-traffic environments where hygiene is a priority.
Highly Customizable for Diverse Applications
The chair offers a wide range of customization options, including three frame finishes, two tube specifications, optional writing tablets and book baskets, and custom logo printing. This versatility allows it to be tailored to the specific needs of educational, corporate, religious and event rental clients.
Wide Range of Compliance Certifications
The OK505GC meets global safety and quality standards, with SGS load testing and optional CE, ISO 9001, EN 16139, REACH, CA65 and BS 5852 certifications. This ensures the product is suitable for sale and use in markets worldwide, providing peace of mind for international clients.
Suitable for Both Indoor and Outdoor Use
With optional genuine stainless steel frame for corrosion resistance, the chair can be used in both indoor venues and outdoor event spaces, such as open-air concerts, festivals and sports events. This flexibility expands the range of applications for event rental companies and venue operators.
Proven Industry Performance with Real-World Case Studies
The OK505GC has been widely adopted by educational institutions, corporate clients, churches and event rental companies around the world, with a proven track record of reliable performance in high-usage environments. This real-world experience ensures the product meets the practical needs of commercial clients.
Pallet Packaging: Chairs are stacked on pallets with protective padding around the integrated hooks, 80 chairs per pallet. This is the standard packaging option for large bulk orders and event rental fleets.
Assembled Bulk Packaging: Fully assembled chairs are stacked upright in bulk, with hook protection to prevent scratches during shipping. This option maximizes container loading capacity for large orders.
Knock-Down Carton Packaging: Disassembled chairs are packed 4 units per 60×60×60 cm carton, ideal for small orders, retail distribution and e-commerce fulfillment.
Standard MOQ: 300 chairs per color for bulk orders
20GP Container Order: Minimum 800 chairs for full 20GP container loads
Mixed Color Orders: Multiple colors can be mixed in a single container, subject to confirmation of quantity per color and total order volume
Sample Orders: Small sample orders are available for quality testing and venue layout evaluation, contact us for sample pricing and availability
Container Type | Loading Quantity | Packaging Method |
|---|---|---|
40HQ Container | 1,440 chairs | Palletized packaging (80 chairs per pallet, 18 pallets total) |
40HQ Container | 2,200 chairs | Assembled chairs stacked upright in bulk |
40HQ Container | 2,650 chairs | Assembled chairs stacked horizontally in bulk |
20GP Container | 800+ chairs | Standard bulk palletized packaging |
Standard Production Lead Time: 3–4 weeks after receipt of deposit payment and final confirmation of all order details, including color, hook orientation, accessories, logo printing and packaging requirements
Rush Orders: Expedited production is available for urgent projects, contact us to confirm rush lead time and pricing
Sample Lead Time: 7–10 working days for standard sample orders
We offer flexible shipping options to meet the needs of our worldwide customers, including:
EXW Factory: Ex-works shipping from our manufacturing facility, ideal for customers with their own freight forwarders
FOB Port: Free on board shipping from the nearest Chinese port, including all local port handling and documentation fees
CIF Destination Port: Cost, insurance and freight included shipping to the customer’s destination port
DDP Delivery: Delivered duty paid shipping directly to the customer’s warehouse or project site, including all customs clearance, duties and taxes
We work with reputable global freight forwarders to ensure timely, safe and cost-effective delivery of your order, and provide full tracking information for all shipments.
We offer comprehensive OEM and ODM services to meet the unique needs of our customers, including:
Custom color matching for PP shells and frame finishes
Custom logo printing on the back or underside of the PP seat shell
Custom accessory development and integration
Custom packaging and labeling solutions
Custom frame tube specifications and material options for special projects
Our experienced engineering and design team will work closely with you from concept to production to ensure your custom project is completed to your exact specifications, on time and on budget.
What is the difference between OK505GC and the standard OK505?
The OK505GC has integrated welded hook connectors on the frame for faster row connection.
Is the connector installed separately?
The main OK505GC version uses welded built-in hooks, while detachable external connector options can also be supplied.
How are the chairs connected into rows?
Adjacent chairs are linked by engaging the integrated hooks with the corresponding frame section, without special tools.
Where can the interlocking chair be used?
It is suitable for churches, auditoriums, conference halls, concerts, performance venues and public events.
Is the OK505GC stackable?
Yes. The recommended maximum stack is 15 chairs.
Do the hooks affect stacking?
The hooks are positioned for the stacking structure, but scratch protection is recommended during packing and handling.
What are the dimensions?
Approximately 49 W × 50 D × 80 H cm, with a seat height of 44 cm.
What are the seat and backrest dimensions?
Seat width is 43 cm, seat depth is 38 cm, backrest width is 43 cm and backrest height is 39 cm.
What plastic material is used?
It uses an integrated injection-molded polypropylene PP seat-and-back shell.
What frame tube options are available?
Ø22 × 1.1 mm or Ø19 × 1.0 mm steel tube options are available.
Are chrome-plated and stainless steel frames available?
Yes. Chrome-plated steel is recommended for indoor use, while genuine stainless steel is suitable for outdoor or humid environments.
What is the load test result?
The chair has been tested by SGS for a static load of up to 600 lbs, approximately 272 kg.
Can a writing tablet be added?
Yes. A writing tablet is available for schools, training rooms and conferences.
Can a book basket be added?
Yes. Fixed and removable or hanging book basket options are available.
Can a logo be printed?
Yes. A custom logo can be printed on the back or underside of the PP shell.
What packing methods are available?
Pallet, assembled bulk and knock-down carton packaging are available, with protection around the hooks.
How many chairs fit in a 40HQ?
Reference loading quantities are approximately 1,440 pallet-packed, 2,200 upright bulk-loaded or 2,650 horizontally bulk-loaded chairs, subject to final hook and packing configuration.
What is the MOQ?
The standard MOQ is 300 chairs per color. A normal 20GP order starts from approximately 800 chairs.
What is the lead time?
Approximately 3–4 weeks after payment and final confirmation of hook orientation, colors, accessories, logo and packaging.
What compliance documents are available?
Applicable documentation can include CE, ISO 9001, EN 16139, EN 12520, REACH SVHC, California Proposition 65, BS 5852 and SGS load testing.
