Huizhou Ramson Technology Co., Ltd. is a professional ISO-certified large size fabric living room sofa factory in China, providing modern furniture solutions for commercial and residential contract projects. As a direct manufacturing partner for buyers searching for modular sofa manufacturers and suppliers in China, we offer factory-direct wholesale pricing, complete OEM/ODM customization, strict quality control, and reliable support for global projects.

We Build This Sofa

Big, soft, and made for gathering - a large-size modular sectional that anchors your living room and seats the whole family in comfort.

Below is exactly how our factory builds it - the raw materials, the internal construction, and the QC steps we run before it ever leaves the workshop.

Ideal for: large living rooms, open-plan great rooms, family rooms, home theaters, and any space that needs generous, flexible seating for the whole household.

Frame

A rock-solid solid wood frame built from kiln-dried eucalyptus hardwood and first-grade plywood - the kind of construction that stays silent and stable for years.

Eucalyptus hardwood (density 0.39 T/m3) in precision-cut dimensions: 1.9x3.4 cm, 2.5x4.5 cm, 3.9x3.9 cm, and 2.2x7 cm - used for the seat base rails, armrest frames, and structural cross-bracing, with pine timber (2x4 cm) reinforcing key seat members.

First-grade plywood (11mm, 14mm, 17mm) and poplar plywood (1.7mm) for base panels, armrest panels, and shape retention.

All joints are corner-blocked, glued with white wood adhesive, and secured with industrial staples and four-prong T-nuts for a frame that will not wobble or creak - even across a wide multi-module sectional.

Spring System & Base Support

A layered support system that delivers a balanced, supportive sit - soft on top, firm underneath, and engineered to resist sagging across the full width of the sofa.

Petrochemical Solutions

Pocket Spring Packs - individually wrapped coil packs in two sizes: 3"x20"x25" (1.9mm wire) and 3"x20"x30" (1.9mm wire), with a special-shaped pack for the corner module. Each coil is wrapped in non-woven fabric to minimize motion transfer and deliver targeted, personalized support.

Metallurgical Solutions

Sinuous Springs - 3.8mm gauge 82B steel zigzag springs in multiple bow counts (13, 14, and 17.5 bows, 17mm inner spacing, ~10g/bow) reinforce the seat base for even weight distribution and long-term resilience across every module.

Chemical Solutions

Elastic Webbing - 4.5cm wide green elastic webbing (303 grade) stretches across the seat frames for flexible, breathable base support that complements the spring system.

Petrochemical Solutions

Steel positioning wire (2.0mm diameter) and metal bed-net clips lock the entire spring array in place, preventing shift and extending the sofa's service life.

This multi-layer support spreads pressure evenly, reduces long-term fatigue, and keeps the seat feeling plush - not flat - even after years of daily family use.

Foam Configuration

Multi-density, high-resilience foam is strategically layered by zone-firm where you need structural support, soft where you want comfort.

High-Resilience Foam (23 kg/m3) - the core structural foam used across seat rails, seat fronts, armrest surfaces, and headrest panels in thicknesses from 0.5" to 3". High resilience means it bounces back quickly .
Extra-Firm Foam (28 kg/m3) - 1" thick top layer on the seat surface for a supportive, non-sagging sit that holds up to daily use.
Medium-Soft Foam (18 kg/m3) - 1.5" and 2" layers on the headrest and armrest areas for a plush, cradling feel.
Headrest construction - multi-layer padding (1.5" medium-soft foam base + 1" and 2" soft layers on the headrest face, top, and sides) cradles your head and neck for comfortable support in any seated position.
Seat perimeter rails: 3" foam for edge support that keeps the seat shape crisp and prevents "roll-off" at the edges.

Every foam batch undergoes incoming inspection at our factory-we verify density and thickness before cutting, so you get the specified firmness on every single unit.

Fabric

A premium upholstery fabric that combines softness, durability, and easy care for real-life family use.

Soft, Durable Texture - smooth to the touch yet built to withstand the daily wear of a busy family living room, including kids and pets.

Breathable & Comfortable - the fabric allows air circulation, keeping you comfortable during extended sitting or lounging sessions.

Fabric is swappable for project orders-contact us for a swatch card and custom color options.

Legs

Elevated legs lift the large sectional for a clean, modern silhouette while keeping every module stable and secure.

Height: 5 cm (2.0") - provides a comfortable visual lift and clearance, creating a lighter look on a large sofa while keeping it grounded and stable.

Reinforced leg mounts on every module keep the sectional steady across its full length-no wobble or shifting between connected modules.

Floor protection pads prevent scratches on hardwood, laminate, and tile floors.

Materials & Craftsmanship

Performance Upholstery:

High-abrasion diamond-quilted fabric blend. The quilting pattern serves as a "fill-lock," preventing foam/fiber migration and maintaining consistent cushion loft across large production runs.

Cold-Rolled Steel Mechanisms:

Higher tensile strength than hot-rolled alternatives. Powder-coated for corrosion resistance. Gas-assisted struts ensure smooth, controlled recline motion.

Polymer Bushings:

Replace metal bearings at pivot points for silent, maintenance-free operation.

Kiln-Dried Hardwood Frame:

Moisture-controlled (<12%) hardwood with reinforced stress points. Ensures structural consistency across 5 to 500+ unit orders.

Application Scenarios

Project Type	Application Benefit
Luxury Villas & Great Rooms	Anchors open-plan spaces. Large scale creates intentional zoning without appearing undersized.
Boutique Hotel & Resort Suites	Eliminates motor noise and electrical faults. Built-in comfort features enhance guest experience and review scores.
Penthouse Condominiums	Modular packaging solves elevator delivery constraints. Reduces accessory furniture count for faster room turnover.
Executive Retreats & Clubhouses	Separates group conversation (standard seats) from individual downtime (reclining chaise). Maintains focused atmosphere.

Selling Points

1. Oversized L-shaped chaise lounge combination with an enclosed, spacious seating area
2. grid dot-pattern quilting locks the cotton to prevent displacement and has a strong three-dimensional effect
3. Height-adjustable independent headrest pillow with ergonomic head-and-neck support
4. Soft beige fabric that brightens the living room space
5. Modular, detachable units for easy cross-border packing and extendable sizing
6. High-density foam with balanced softness and firmness - resists sagging even after long hours of sitting
7. Built-in chaise lounge for multi-functional sitting, lying, and reclining
8. Ideal for large flat layouts, villas, and project procurement
9. Armrest with built-in storage

Our 6-Step Process

Consult:

Share project brief, configuration, and quantity.

Propose:

Receive layout options, material specs, and cost estimate within 48 hours.

Sample:

Prototype produced in 7-15 days with mechanism testing.

Approve:

On-site or video review, mechanism validation, and order confirmation.

Produce:

8-10 weeks mass production with per-unit mechanism QC.

Deliver:

Final QC, modular packaging, and worldwide logistics.

Key Specifications

Module	Length (W)	Depth (D)	Height (H)	Seat Height (SH)	Seat Depth (SD)	Leg Height
End Seat	102 cm / 40.2"	91 cm / 35.8"	95 cm / 37.4"	46 cm / 18.1"	55 cm / 21.7"	5 cm / 2.0"
Chaise	148 cm / 58.3"	96 cm / 37.8"	95 cm / 37.4"	46 cm / 18.1"	55 cm / 21.7"	5 cm / 2.0"
Corner	107 cm / 42.1"	107 cm / 42.1"	77 cm / 30.3"	46 cm / 18.1"	69 cm / 27.2"	5 cm / 2.0"
Middle	82 cm / 32.3"	91 cm / 35.8"	95 cm / 37.4"	46 cm / 18.1"	55 cm / 21.7"	5 cm / 2.0"

Armrest Height (FH): 62 cm / 24.4" (end seat) | Back Frame Height: 51 cm / 20.1" (end seat), 36 cm / 14.2" (corner) | Headrest: plush multi-layer design on all modules

Module	Carton (L x W x H)	N.W. (kg)	CBM(m³)	Loading (sets/40HQ)
End Seat	106 x 93 x 68 cm	53 kg	0.715	95
Chaise	150 x 97 x 74 cm	34.5 kg	0.871	78
Corner	109 x 109 x 74 cm	28 kg	0.85	80
Middle	84 x 93 x 68 cm	23 kg	0.527	129

Each module ships individually with full protection - bubble wrap, non-woven fabric, corner guards, and desiccant packs included. Modules connect easily on site with no special tools.

Certifications & Who Builds It

Fabric passes SGS abrasion-resistance testing.

Foam meets the GB 8410 A-0 fire-retardant standard.

Product R&D and in-house QC are led by our founder, Gigi Xie, with 17 years of sofa manufacturing and foreign trade project experience.

FAQ

Q: What modules are included in the JF-3079 system?

A: The JF-3079 includes four module types - end seat (102 cm), chaise (148 cm), corner (107 cm), and middle (82 cm). You can mix and match these modules to create the exact sectional layout your living room requires.

Q: Can I reconfigure the modules after purchase?

A: Yes. All modules are independent and connect easily without special tools, so you can reconfigure the layout anytime - from an L-shaped sectional to a wide straight layout, or a corner-hugging arrangement.

Q: Is this sofa suitable for large living rooms?

A: Absolutely. It is specifically designed as a large-size living room sofa. Combined, the modules create a spacious sectional that anchors open-plan great rooms and large family spaces. You can also use fewer modules for smaller rooms.

Q: How comfortable is the headrest?

A: Very comfortable. Each module features a plush, multi-layer headrest with a soft medium-density foam core and cushioned face, top, and side panels. It cradles your head and neck for comfortable support while sitting upright or leaning back.

Q: Can I customize the fabric color?

A: Yes. Fabric color can be customized to match your interior design. Contact our team to request a fabric swatch card and discuss your specific requirements.

Q: What is the minimum order and lead time?

A: MOQ is 1 x 40HQ container. Standard lead time is 30-45 days from deposit confirmation, depending on order quantity and customization level.