L-Shaped Stairs Also Known as Quarter Turn Stairs

Navigating a staircase that twists mid-step can be more than a design quirk—it can be a safety risk or a style frustration. L-shaped stairs also known as quarter turn stairs are staircases that include a 90-degree turn with a landing, creating a change in direction between floors. They’re common in homes aiming to save space while adding architectural interest.

In this guide, you’ll learn what makes these stairs different, why they’re chosen, and how to solve their most common issues. We’ll also show you how carpet stair treads can improve both safety and design without a full renovation. Let’s walk through practical upgrades that work for real families—without the stress.

What Are L-Shaped (Quarter Turn) Stairs?  

L-shaped stairs—also referred to as quarter-turn stairs—are a common architectural feature in many two-story homes. These stairs make a single 90-degree turn, typically through a flat landing between two straight runs.

This staircase type is often used when:

• Space is limited

• A more elegant design is desired

• There's a need to redirect foot traffic between floors

These stairs are popular in both traditional and modern homes for their ability to conserve space and add character.

Benefits of L-Shaped Stairs  

• Space Efficient: They fit better into compact layouts than long, straight staircases.

• Visually Interesting: The 90-degree angle adds depth and architectural appeal.

• Safer by Design: The landing creates a built-in pause point, reducing the risk of falling from top to bottom.

Where L-Shaped Stairs Are Most Commonly Found  

You’ll often see these stairs in:

• Split-level homes

• Narrow multi-story houses or townhomes

• Homes with open-concept entryways

• Renovated older homes with custom layouts

They're ideal for homeowners who want to break up a staircase visually without doing a complete spiral.

Common Materials Used in L-Shaped Stair Construction  

Most L-shaped stairs use:

• Wood: Oak, maple, or pine for classic appeal

• Metal stringers: For modern, open-frame designs

• Carpet: For full-coverage warmth and traction

• Glass railing panels: For a sleek, airy aesthetic

You can also add custom stair treads for even more safety and comfort. Oak Valley stair treads, for instance, offer soft landings, better grip, and style—all without damaging your stairs.

How Quarter Turn Stairs Affect Home Flow and Traffic  

L-shaped stairs don’t just look good—they improve how people move through the house.

• They slow down foot traffic, making them safer for pets, kids, and older adults.

• They offer natural breaks between floors—helpful for open floor plans.

• They can visually separate private spaces (like bedrooms) from public ones (like living rooms).

All of this adds up to a more comfortable, functional layout for everyday living.

Cost of Building or Renovating L-Shaped Stairs  

Here’s a ballpark breakdown:

• New L-shaped stair construction: $3,000 to $8,000+

• Replacing a straight stair with an L-shaped design: $5,000 to $10,000+

• Adding stair treads: ~$269 (compared to $299+ on Amazon)

If you want the look and safety of a renovation without the cost, Oak Valley’s DIY stair treads offer a smart upgrade. No tools, no damage—just peel, stick, and step.

Code & Safety Requirements for L-Shaped Stairs  

In the U.S., most residential building codes require:

• Riser height: 7–7.75 inches

• Tread depth: 10–11 inches

• Landing minimum depth: 36 inches

• Handrails on one or both sides depending on width

L-shaped stairs are often more compliant with safety codes than straight stairs because the landing interrupts long falls.

Comparing L-Shaped Stairs to Other Types of Stairs  

Let’s look at how L-shaped stairs stack up to other common designs:

L-shaped stairs strike a perfect balance between functionality and visual impact compared to other types of stairs.

Enhancing L-Shaped Stairs with Stair Treads  

L-shaped stairs often have slippery finishes like hardwood or engineered flooring.

Adding carpet stair treads is one of the simplest ways to:

• Prevent slips and falls

• Protect your stair surface

• Add warmth and softness

• Reduce noise from kids, pets, and guests

Oak Valley Designs offers tailored treads that can be cut to fit any turn or landing, including custom orders for tricky stair configurations.

Creative Styling Tips for L-Shaped Staircases  

These stairs already have personality. Now bring it to life with simple updates:

• Pair two-tone wood + light-colored treads for contrast.

• Add wall-mounted gallery art around the landing.

• Use a runner rug on the landing to carry the style through.

• Install recessed LED lights or under-step lighting for added mood (and safety).

Homeowners like Ashley (our ideal customer!) love projects that give that “HGTV reveal” feeling without breaking the bank.

How L-Shaped Stairs Help with Aging in Place  

As we age, falling becomes a bigger concern. L-shaped stairs:

• Offer natural resting points on the landing

• Shorten the number of continuous steps

• Allow room for assistance like a walker or handrail extension

Pair this with soft, non-slip stair treads and you’ve got a smart solution for aging gracefully at home.

Stepping It Up  

L-shaped stairs—aka quarter turn stairs—may look complicated, but they’re a practical and stylish choice for real homes. Whether you’re navigating busy mornings with kids and pets or just want something that looks custom without costing custom, this stair layout works.

And when it comes to keeping your family safe and your space beautiful, Oak Valley Designs stair treads make the difference. They're the better way to style and protect your stairs, made with heart and shipped with care.

Upgrade Your Quarter Turn Stairs the Smarter Way  

L-shaped stairs may be tricky to navigate, but styling them doesn’t have to be. With Oak Valley's custom stair treads, you can add warmth, safety, and charm to every turn—without tools, glue, or stress. Whether your stairs take a sharp left or wrap around a corner, we’ve got you (and your family) covered.

• Website: https://oakvalleydesigns.com/

• Phone: 706.331.0315

• Email: info@oakvalleydesigns.com

• Address: 30 River Ct SW Bldg E Cartersville, Ga 30120