Selecting your finial
Your choice of finial should reflect the era of your home. A traditional period property may suit an acorn or urn finial, while a contemporary space often looks best with spheres or simple, minimalist end caps.
How much runner do I need?
For a 13-step flight (10 in / 25 cm treads, 7.5 in / 19 cm risers), you will need 23.5 ft (7.09 m) of runner. Finials attach to the ends of the rods and should be chosen to match the finish of your rod.
| Measurement | US (in/ft) | UK (cm/m) |
|---|---|---|
| Tread run | 10 in | 25 cm |
| Riser height | 7.5 in | 19 cm |
| Per-step total | 18.25 in | 45.9 cm |
| Total (13 steps) | 19.77 ft | 5.97 m |
| With 8% waste | 23.5 ft | 7.09 m |
Know your numbers in 30 seconds
Enter your step count, tread depth and riser height — the stair runner calculator gives you the exact length to order, in metres and feet, with waste included.
Open the stair runner calculatorStyling note
Keep the finial style consistent across the entire flight for a professional, cohesive look.
- Acorn: Traditional and classic
- Sphere: Modern and versatile
- Pyramid: Sharp and contemporary
- Urn: Elegant and sophisticated
Whatever you decide, get the numbers first: the stair runner calculator doubles as a stair runner length calculator, adding nosing wrap, landings, winders, pattern repeat and waste so you order the right length the first time.
Still deciding on material, width or pattern? Our hub on stair runners compares weaves, widths, backings and fitting styles side by side, then hands the numbers straight to the calculator.
Frequently asked questions
Can I change my finials later?
Yes, they are usually detachable and can be swapped for a new style.
Are finials standardized?
Sizes and fitments vary, so ensure your new finials are compatible with your current rod diameter.
Which finial is best for a modern home?
Simple geometric shapes like spheres or cylinders are ideal for a modern aesthetic.
Are finials included with the rod?
They are typically included, but check your order details.
Do finials require maintenance?
Just an occasional wipe to keep them clean; they don't need special care.
What if my finials get damaged?
Most suppliers offer individual finial replacements.
Can I use different finials on each step?
It is not recommended, as it will look cluttered and unprofessional.
Are there heavy-duty finials?
Finials are primarily decorative and don't need to be heavy-duty as they don't take any structural load.
Know your numbers in 30 seconds
Enter your step count, tread depth and riser height — the stair runner calculator gives you the exact length to order, in metres and feet, with waste included.
Visualize your rod style with our stair runner calculatorEvery guide is written from hands-on measuring and fitting experience, checked against the calculator’s own maths, and re-reviewed whenever prices or methods change. Read our editorial standards.