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Home / Stair Guides

Curved Stairs

Gradual arc with consistent width, gentle curve

Trusted across thousands of fit checks · updated daily
400 questions answered

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Quick answer

Can I move furniture up curved stairs?

May require tilting or specific angles for larger items. Curved Stairs have a minimum clearance of 36 inches. The undefined° turn may limit large items.

Moving Difficulty: Moderate

Standard Dimensions

Standard curved stairs dimensions (in)
DimensionMeasurement
Width42"
Minimum Clearance (critical)36"
Headroom80"
Total Rise105"
Tread Depth11"
Riser Height7.5"
Number of Risers14
Standard stair dimensions aren't the whole story — check whether your exact item clears this staircase, including the turn and headroom.Check stair fit →

Turn Configuration

undefined° gradual curve turn — no reorientation possible, so furniture must maintain its angle. Critical clearance at the turn: 36".

Building Code Compliance

  • IRC Residential: Compliant
  • IBC Commercial: Compliant
  • ADA Accessible: Compliant

Moving Tips for Curved Stairs

  • Measure your furniture and the stair clearance before moving
  • Remove doors at top and bottom of stairs for extra clearance
  • Use furniture sliders or moving blankets to protect walls
  • Have at least 2 people for heavy items

Measure smart

What to measure.

Four numbers decide nearly every fit check. Get these right and the rest follows.

  1. 01Minimum clearance — the narrowest point along the entire flight
  2. 02Stair width between walls or railings
  3. 03Headroom and the diagonal at any turn or landing
  4. 04Your furniture's smallest dimension in every orientation

Don't make these

Common mistakes.

Most “it didn't fit” stories trace back to one of these oversights.

  1. ⚠Measuring the step width but missing a tighter pinch at a turn or overhang
  2. ⚠Forgetting headroom — a low ceiling or soffit can stop a tall item
  3. ⚠Assuming a landing lets you reorient when a winder turn does not
  4. ⚠Underestimating how much a handrail narrows the usable width

Go deeper

Related guides & calculators

More Stair Guides

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  • Quarter Winder StairsGuide
  • Half Winder StairsGuide
  • Floating StairsGuide
  • Cantilevered StairsGuide
  • Butterfly StairsGuide
  • Imperial StairsGuide
  • Geometric StairsGuide
  • Alternating Tread StairsGuide
  • Ship Ladder StairsGuide
  • Split Level StairsGuide
  • Fire Escape StairsGuide
  • Folding StairsGuide
  • Retractable StairsGuide
  • Scissor StairsGuide

Calculators & related

  • Elevator AlternativeCalculator
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Frequently asked

Questions we keep getting.

  • What are the standard dimensions of Curved Stairs?

    Standard curved stairs have a width of 42 inches, tread depth of 11 inches, and riser height of 7.5 inches. The total rise is 105 inches with 14 risers.

    01
  • Can a sofa fit up curved stairs?

    It depends on the sofa dimensions. Curved Stairs with 36" clearance may accommodate smaller sofas (under 72" wide), but larger sectionals typically won't fit.

    02
  • What is the minimum clearance for moving furniture up curved stairs?

    The minimum clearance on curved stairs is 36 inches. This is the narrowest point furniture must pass through. For safe passage, furniture's smallest dimension should be at least 2-3 inches less than this clearance.

    03

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