Advanced Stair Runner Calculator
Precisely calculate the perfect runner length for any staircase with our comprehensive tool
Measurement Preferences
Select your preferred unit system for all measurements
Staircase Visualization
Visual representation of your staircase configuration
Staircase diagram will appear here as you enter measurements
Advanced Configuration
Staircase Configuration
Enter the basic measurements of your staircase
Winder Steps
Winder steps are pie-shaped steps that change direction, common in spiral or curved staircases
Mid-Landings
Square platforms that make a 90° turn in your staircase (common in L-shaped staircases)
Half-Landings
Larger platforms that make a 180° turn in your staircase (common in U-shaped staircases)
Your Stair Runner Calculation Results
Recommended Purchase Quantities
Note: These calculations account for your specified waste factor of 10%. For patterned runners, additional length may be needed for pattern matching. Complex staircases with multiple turns may require professional measurement. Always verify measurements before purchasing.
Helpful Resources
Additional information to help with your stair runner project
Measurement Guides
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How to Measure Your Stairs
How to Measure Your Stairs
To accurately measure your stairs for a runner, follow these steps:
- Count the number of steps - Include all steps including winders and landings, but don't count the top floor as a step.
- Measure the rise - Measure vertically from the top of one step to the top of the next step (typically 17-20cm or 6.7-7.9in).
- Measure the run - Measure horizontally from the front edge to the back edge of the step (typically 22-30cm or 8.7-11.8in).
- Measure the width - Measure the width of your staircase where the runner will be placed.
- Note any special features - Mark any winders, landings, or unusual features in your staircase.
For best results, measure twice and record all measurements in a diagram.
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Measuring Winder Stairs
Measuring Winder Stairs
Winder stairs require special measurement techniques:
- Identify winder steps - These are the pie-shaped steps that change direction.
- Measure the widest point - For each winder, measure from the narrowest point to the widest point at the outside of the curve.
- Count the winders - Note how many steps in your staircase are winders.
- Measure the angle - If possible, determine the angle of the turn (typically 30° or 45° per winder).
Winder stairs typically require 10-20% more material than straight stairs due to the curvature.
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Common Measurement Mistakes
Common Measurement Mistakes
Avoid these frequent measurement errors:
- Incorrect step count - Forgetting to count landings or counting the top floor as a step.
- Inconsistent measurements - Not measuring each step (some older stairs may have variations).
- Ignoring pattern repeats - For patterned runners, forgetting to account for pattern matching.
- Underestimating waste - Not adding enough extra material for installation and adjustments.
- Measuring only one side - Stairs may not be perfectly symmetrical, especially in older homes.
Always double-check your measurements and consider having a second person verify them.
Installation Tips
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DIY Installation Guide
DIY Installation Guide
For those installing their own stair runner, follow these steps:
- Prepare the stairs - Clean thoroughly and repair any damage.
- Install padding - Cut to size and secure with staples or adhesive.
- Measure and mark - Center the runner on each step.
- Start at the top - Secure the top end first, then work downward.
- Staple or tack - Use heavy-duty staples or tacks every 4-6 inches.
- Stretch properly - Keep tension even to avoid wrinkles or gaps.
- Finish the ends - Secure the bottom end firmly and trim excess.
Allow extra time for your first installation and have a helper available.
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Waterfall vs. Upholstered Installation
Waterfall vs. Upholstered Installation
Waterfall Installation:
- Runner hangs over the stair nosing
- Easier to install
- Requires less material
- More casual look
- Easier to replace or remove
Upholstered Installation:
- Runner wraps around the stair nosing
- More professional appearance
- Requires more material (add 5-10%)
- More durable and secure
- Better for high-traffic areas
Combination installations are also possible, with upholstered on visible steps and waterfall on less visible ones.
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Finding a Professional Installer
Finding a Professional Installer
When looking for a professional stair runner installer:
- Check credentials - Look for certified floor covering installers.
- Ask for references - Request photos of previous work.
- Get multiple quotes - Prices can vary significantly.
- Verify insurance - Ensure they have liability coverage.
- Ask about experience - Specifically with your stair type.
- Check reviews - Look at online reviews and ratings.
Professional installation typically costs $200-$500 depending on stair complexity and location.