About Inline Design

Inline Design is a Seattle-based supplier of modern stainless steel railing systems for residential, commercial, and coastal projects.

We specialize in cable railing, glass railing, bar railing, handrail brackets, stainless steel tubing, glass clamps, adapters, and installation hardware. Our goal is simple: make premium railing systems easier to design, order, and install.

Whether you are a homeowner, contractor, builder, architect, or installer, we help you move from measurements and layout questions to a complete railing system that fits your project.

Designed for Clean, Modern Projects

Our railing systems are built for projects where appearance, strength, and long-term durability matter. We focus on clean lines, high-quality stainless steel components, and practical installation details that make the final result look intentional and professional.

Our products are used on decks, balconies, stairs, patios, pool areas, waterfront homes, commercial spaces, and modern interior projects.

More Than an Online Parts Store

Inline Design is not just a catalog of railing parts. Our team understands the full process, from layout and product selection to fabrication details, shipping, and installation support.

For custom railing projects, we can help with post layout, railing height, stair conditions, mounting options, glass requirements, cable spacing, and hardware selection. When needed, we provide CAD drawings so customers and installers can review the project before production.

Built Around Practical Support

A railing project has a lot of details, and small mistakes can become expensive on site. That is why we focus on clear communication, accurate quoting, and helping customers choose the right system before they order.

Our team regularly works with homeowners, contractors, and builders to answer questions about:

Cable railing systems
Glass railing systems
Stair railing layouts
Floor mount and side mount posts
316 stainless steel and black powder-coated finishes
Glass thickness and hardware options
Custom post spacing and layout drawings
Shipping long railing components safely

Quality Products, Clear Process

We work to provide railing components that are strong, clean, and ready for real job-site conditions. Many of our stainless steel systems are designed with coastal and outdoor environments in mind, where corrosion resistance and long-term performance are important.

From standard parts to custom layouts, our focus is always the same: provide a clean modern railing system, ship it correctly, and support the customer through the process.

Our Promise

We know railing projects are not always simple. Every deck, stair, balcony, and glass layout is a little different. Our job is to help make the process easier.

At Inline Design, we combine modern railing products, practical design support, and responsive customer service so you can complete your project with confidence.

Clean design. Quality materials. Practical support. That is Inline Design.