Converting Winder Stairs To A Landing Space Planning And Design
Many homeowners looking to improve the safety and functionality of their interior spaces eventually consider remodeling their staircases. Older homes often feature winder stairways, which utilize pie shaped steps to turn a corner in a highly confined space. While these designs are efficient in terms of floor space, they can be difficult to navigate and present tripping hazards. Converting a winder stairway into a traditional stairway with a flat landing is a highly sought after remodeling project, but it requires careful spatial planning and structural consideration.
The Spatial Challenge Of Stair Conversions
The primary hurdle in removing winder treads is understanding the mathematical realities of stair footprints. A standard winder configuration typically utilizes three angled steps to complete a 90 degree turn. When you remove those three angled treads to install a single flat landing, you are suddenly missing the elevation that two of those steps provided.
To maintain the required floor to floor height, those two missing steps must be relocated to another part of the stairway. Because the upper section of the stairs is usually fixed to the upper floor framing, the additional steps must be added to the bottom of the staircase. This means the overall footprint of the stairs will need to extend further out into the lower level room.
Layout Options For Landing Additions
When planning this architectural change, homeowners have a few distinct design paths depending on the available square footage at the base of the stairs. If the adjacent room is spacious, the easiest method is to push the bottom of the stairway outward in a straight line, adding the necessary treads directly past the new landing.
If extending the stairs straight outward interferes with walkways, doors, or structural supports, the bottom steps can be redesigned to turn off the landing in a different direction. By adjusting the orientation of the final steps, the staircase can be manipulated to fit the existing room dimensions without requiring the demolition of surrounding walls.
Evaluating Your Remodeling Feasibility
Before purchasing materials or beginning demolition, carefully measure the area at the base of your existing staircase. Visualize exactly where the new landing will sit and measure the distance required for the additional standard treads. If the new extended footprint collides with a hallway, an entryway, or a load bearing wall, a simple conversion will not be possible without a major structural remodel. Proper planning ensures that the proposed stairway redesign will fit safely and functionally within your home.
Three Key Construction Tips
Account for the extended horizontal run. Replacing three space saving winder treads with one flat landing means you must add two regular steps to the bottom of the flight to reach the floor. This permanently lengthens the footprint of your staircase.
Evaluate all adjacent floor clearances. Because the stairway must expand outward into the lower level, rigorously measure the surrounding room to ensure the new steps will not block doorways, hallways, or essential traffic paths.
Consider altering the directional path of travel. If a straight extension is not possible due to a nearby wall, you can design the final steps to drop off the side of the new landing, creating an L shaped configuration that fits your existing room dimensions.
Bonus Questions And Answers
To further assist you with your structural planning, here are answers to additional building code and architectural questions you may encounter during a stairway conversion.
What Are The Minimum Dimensions Required For A New Stair Landing
When planning your layout modification, it is critical to understand that residential building codes dictate exact sizing for flat transitions. According to standard International Residential Code guidelines, a stair landing must be at least as wide as the stairway itself, and it must have a minimum depth of 36 inches measured in the direction of travel. Replacing space saving winders with a code compliant landing requires significant room, which is why extending the bottom of the staircase footprint is almost always mandatory. Local jurisdictions may have stricter amendments, so always verify with your municipal building department.
Will Changing The Stair Layout Affect Minimum Headroom Clearances
As you shift the position of your steps to accommodate a new flat landing, you must also consider the vertical space directly above the new layout. Structural building codes require a minimum headroom clearance of 6 feet and 8 inches measured vertically from the sloped plane adjoining the tread nosings or from the finished floor of the landing. Because you are extending the staircase further out into the lower level, you must ensure the ceiling framing or headers above this new extension do not dip below this safety threshold.
How Does Converting To A Landing Impact Handrail Requirements
Modifying the path of travel and removing winder treads will inherently change how your handrails are constructed and mounted. Standard residential building codes state that handrails must be placed between 34 and 38 inches above the tread nosing and must remain continuous for the full length of the flight. When you install a flat landing, the handrail can safely transition across this level area, but you must plan for proper wooden blocking inside the adjacent walls to firmly anchor the new handrail brackets at the exact height required by code.
