Custom Seating & Leaning Posts for Marine Applications

We fabricate custom seating frames, leaning posts, and fighting chair pedestals with integrated storage from marine-grade stainless and aluminum. ±0.3–0.8 mm tube bending tolerances with complete assembly accuracy confirmed at quote. Lead times from 7–10 business days. Upload STEP/IGES/DWG — 48h DFM & quote.

Upload Design — 48h Feasibility View Applications

Accepted Formats: STEP · IGES · DWG · SLDPRT · PDF

Custom Design & Engineering Support

From simple leaning post frames to complex integrated seating systems with storage, our engineering team evaluates your requirements for ergonomics, load distribution, and manufacturability.

We work directly with your CAD models to optimize frame geometry, mounting interfaces, and integrated features like rod holders, tackle storage, and drainage systems.

Ergonomic frame design for seated and standing positions
Load path analysis for maximum occupant safety
Storage integration and drainage system planning
Material & finishing selection for marine environments

Engineering Review Process

Our technical team provides detailed DFM feedback covering structural optimization, material selection, and manufacturing strategy.

Workflow: Upload design → 48h feasibility & DFM feedback → Detailed quote → Tooling and production

Precision Tube Fabrication & Welding

Integrated CNC tube bending, laser cutting, welding, and assembly in one facility. Every frame is built to precise tolerances and tested for structural integrity before shipment.

CNC Tube Bending

Mandrel-supported bending for 316 stainless and 6061-T6 aluminum tubes. Typical tolerances ±0.3–0.8 mm depending on diameter and bend complexity.

Welding & Assembly

TIG/MIG welding with fixture-controlled alignment. Assembly tolerances ±0.5–1.0 mm confirmed at quote based on joint configuration.

Laser Tube Cutting

Precision cutting with holes, slots, and miters in one setup. Tolerances ±0.05–0.1 mm for feature accuracy.

Materials & Integrated Features

Material Selection

Choose from marine-grade stainless steel (316/304) or lightweight aluminum (6061-T6/5083) with professional surface finishing for long-term durability in saltwater environments.

316 Stainless Steel — Maximum corrosion resistance for saltwater and offshore use
304 Stainless Steel — Cost-effective option for protected marine environments
6061-T6 Aluminum — Lightweight construction with excellent strength-to-weight ratio
5083 Marine Aluminum — Superior saltwater corrosion resistance for critical applications

Integrated Features

We design mounting points, drilling provisions, and integrated features directly into the frame structure.

Integrated tackle storage compartments with drainage
Rod holder mounting provisions and cleat integration
Live well plumbing interfaces and through-hull connections
Swivel or pedestal base mounting systems for helm seating

All features are optimized for manufacturing efficiency and easy installation on your vessel.

Quality Assurance & Documentation

Every seating frame is built under our ISO 9001 certified quality management system with full dimensional verification and structural testing.

Precision Standards

Tube fabrication:±0.3–0.8 mm (confirmed at quote)
Laser cutting:±0.05–0.1 mm
Welding assembly:±0.5–1.0 mm (joint-dependent)
CNC drilling/tapping:±0.1 mm (hole positioning)

All tolerances confirmed at quote based on specific design and load requirements.

Quality Documentation

We provide First Article Inspection reports, in-process logs, and final dimensional records with full traceability through our quality system.

First Article Inspection (FAI) with dimensional reports
In-process inspection at welding and assembly stages
Final dimensional verification CMM report
Certificate of Conformance (CoC) on request
Material certifications and Certificates of Analysis (CoA)

Application Examples

From tournament fishing boats to luxury yachts, our seating and leaning post assemblies combine strength, storage, and elegant design.

Center Console Leaning Post

Welded 316 stainless frame with integrated 30-gallon livewell, tackle station, and rod holder mounts. Includes drainage plumbing and removable HDPE seat panel.

Helm Seat Frame Assembly

CNC-bent aluminum tube frame with flip-up bolster mechanism and swivel base mounting. Designed for ergonomic operator positioning in standing or seated configurations.

Fighting Chair Pedestal & Frame

Heavy-duty 316 stainless pedestal with reinforced base plate and gimbal mounting interface. Engineered for high-load offshore fishing applications with rod holder integration.

Why Partner with X-KPR

When you need seating structures that are as functional as they are durable, X-KPR delivers integrated engineering, proven manufacturing, and responsive support throughout your project.

Engineering-Driven Partnership

We act as an extension of your design team with DFM feedback, structural optimization, and manufacturing feasibility analysis within 48 hours.

End-to-End Fabrication

Tube bending, laser cutting, CNC machining, welding, and surface finishing — all under one roof to simplify coordination and reduce lead times.

Marine Expertise

Proven performance in marine-grade stainless and aluminum fabrication with corrosion-resistant finishes and compliance documentation.

Frequently Asked Questions

What materials are best for marine seating structures?

316 stainless steel offers maximum corrosion resistance and is ideal for offshore applications. 304 stainless is cost-effective for protected environments. 6061-T6 aluminum with Type III hard anodize finish provides excellent strength-to-weight ratio. Material selection depends on application environment, load requirements, and budget guidance during DFM.

Can you integrate storage compartments into the seating frame?

Yes. We regularly design and fabricate leaning posts with integrated tackle storage, live well plumbing, rod holder mounting, and drainage systems. All features are optimized for manufacturability and easy installation during your DFM review.

Do you offer bolster or seat pad integration?

We fabricate the structural frame and mounting interfaces. Upholstery, foam padding, and removable seat panels are typically supplied separately, but we can design mounting points and alignment features to accommodate your chosen seating components.

What are typical lead times?

From 7–10 business days after design approval. This includes tube bending, laser cutting, welding, surface finishing, and final inspection. Complex assemblies with integrated plumbing may require 2–3 weeks. Expedited timelines available on request.

Can you provide structural FEA or load analysis?

Yes, on request. Our engineering team can perform finite element analysis (FEA) to validate seating frame designs for static and dynamic loads, particularly useful for high-load fishing chair applications. This is discussed and quoted during the DFM phase.

Request a Quote — Upload Your Drawings

Share your seating design, material preferences, and integrated feature requirements. We'll provide detailed DFM feedback and a competitive quote within 48 hours.

Upload Drawings & Get a Quote Contact Engineering