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The Lonsdale Straight Stair

The Defining Elements of the Lonsdale Straight Staircase

The slim outline and in-depth engineering in each component and piece of hardware in this stair gives it a futuristic appeal perfect for generating a theme of cutting-edge in any home.

quality-the-lonsdale-straight-stairView Options

Review all configurable options for the Premium Double Stringer Straight product line!

Quality Wood Components

Because we have an in-house wood shop and do all carpentry on-site to order, you’re guaranteed the most beautiful in tread, handrail, and other wood components for your stair.

Make The Lonsdale Your Own

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Or call 1-888-939-3778 to get started!

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Configure your custom options online!


Cut to Fit

As each stringer is custom cut and welded for each project, your Lonsdale stair is sure to be an exact match to the dimensions of your space.

double stringer indoor straight stairs

Sleek Railing

Keeping in line with the theme of slim minimalism built into the aesthetic of this stair, we also provide you with two trim railing options that both keep the open look in tact while providing the safety you need.


Open Design

To give that sense wide open spaces perfect for homes looking to achieve that modern look, The Lonsdale has an advanced, nearly invisible support system designed using cutting-edge engineering.

Free Consultation

Our stair experts craft the perfect stair for your space.

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Build Your Own

Make The Lonsdale your own

Start Building

Get Accurate Pricing

Not sure where to start? Our friendly SMA-certified stair designers can help you find the perfect stair solution and take the guess work out of your project. You’ll get:

  • One-On-One Web Meeting
  • Friendly, SMA Certified Stair Designers

Schedule your Free Consultation


Your Safety is Our Priority

Your stair will be one that has gone through several tests conducted by our extensive and experienced in-house engineering team.
On top of this, we offer customized add-ons to equip your stair with extra safety specific to your needs. Standard features include:

  • Non-slip treads
  • Code compliant railing
  • Handrails

View Your Options Info


Code Compliant Designs

Our expert designers will walk you through every code concern to make sure you satisfy all requirements in your area.

Staircase Building Code Info


Engineered for Beauty & Strength

The Lonsdale is built with the idea of simplicity for both a clean look and reliable structure that will last.

That reliability also rests in the engineered hardware and skilled cutting and welding of the stringers. This stair provides a solid feeling you won’t beat with other stair lines.

Exclusive In-House Engineering

How To Buy

This step by step guide takes you through each part of Paragon’s unique design and buying process.

Go To How To Buy

Shopping Made Simple

  • Browse or Build
    Browse our stair products for inspiration, or just create your own with our online builder tool.
  • Get Price & 3D Model
    When you’re ready get pricing and a 3D model of your stair during your FREE consultation.
  • Receive & Install
    Get your custom-crafted stair shipped locally in a boxed kit, ready for easy installation.

A Ready-to-Install Kit

with the Uniqueness of a Customized Stair


Easy Assembly Shipped to Your Door

Installation Instructions


Made in the U.S.A.

We Ship Across
North America

See How Paragon Delivers a Best in Class Experience

Customized To Your Budget

Our friendly stair designers can work with you to customize your stair solution to fit your budget.

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Limited Lifetime Guarantee

We back our stairs with the only lifetime warranty on metal fabrication in the stair industry.

See Lifetime Warranty Details

Complimentary Consultation

Our friendly designers can meet with you virtually to get you a FREE 3D model and accurate pricing.

Learn About Our Consultation Process

Over 50,000 Satisfied Customers

See how we have improved the homes and lives of our clients.

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Schedule Your Free Consultation - Inline

  • Our expert designers can design the perfect stair solution based on your requirements and budget. You'll get quick and accurate pricing from SMA certified designers! Learn more about how it works.

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