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Home Services Custom Stair Design

Custom Stair Design

Floating Monostringers, Curved Helical Balustrades & Architectural Centerpieces

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A custom architectural staircase is more than functional vertical circulationβ€”it is the sculptural centerpiece of a luxury home. From floating steel monostringers with cantilevered oak box treads to sweeping helical hardwood balustrades, custom staircase design demands master-level engineering, structural calculations, and artisan craftsmanship.

For over 45 years, LLocal Stairs & Railings has collaborated with Southern California's premier architects, luxury interior designers, and custom home builders. Led by founder Allen Jukovic, we turn bold architectural concepts into code-compliant, vibration-free staircases that define the character of high-end residences in Beverly Hills, Manhattan Beach, and Newport Coast.

Architectural Styles We Engineer & Build

  • Floating Monostringer Stairs: A single central heavy-gauge structural steel spine supporting thick 3.5" to 4" solid hardwood treads with open risers and frameless glass guards.
  • Sweeping Curved & Helical Stairs: Continuous laminated hardwood stringers and continuous handrails bent to exact radius geometry with zero visible joints.
  • Cantilevered Floating Stairs: Treads anchored into concealed steel tube frames embedded inside structural shear walls, creating the illusion of steps emerging directly from drywall.
  • Double Steel Stringer Stairs: Twin laser-cut steel side plates with industrial-chic exposed fasteners, integrated under-tread LED channel lighting, and glass infill.

Key Specifications & Engineered Details:

  • βœ” Custom 3D CAD modeling, structural engineering calculations, and permit support
  • βœ” Heavy-gauge steel monostringers and concealed cantilevered wall anchors
  • βœ” Thick 3.5" to 4" solid hardwood box treads engineered for zero deflection
  • βœ” Continuous curved handrails hand-laminated to custom radius geometry
  • βœ” Integrated recessed LED lighting channels beneath stair tread nosings
  • βœ” Full compliance with CBC 4-inch open-riser sphere rules and seismic load criteria
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Custom Stair Design
SAME-CALL ESTIMATES

Direct Phone Line

Speak directly with master builder Allen Jukovic. No call center or middlemen.

πŸ“ž 949-402-8800
Master Execution

Our 4-Step Installation Process

01

Direct Consultation & On-Site Laser Templating

Allen Jukovic assesses your stair geometry, subfloor framing, and local municipal building codes.

02

Precision Shop Fabrication

All glass panels, timber stringers, or marine-grade stainless posts are custom milled to millimeter tolerances.

03

Single-Day Master Installation

Our specialized installation team executes clean demolition, structural anchoring, and finish installation in 1 to 2 days.

04

CBC Compliance Sign-Off

Every rail meets strict 42" landing guard, 34"–38" handrail, and 4" baluster spacing requirements for hassle-free city inspection.

VISUALIZE BEFORE YOU BUILD

Design Your Custom Staircase in 3D

Preview materials, balustrade systems, and wood finishes in our proprietary interactive 3D Design Studio.

Open 3D Design Studio →
CALIFORNIA BUILDING CODE COMPLIANCE

Worried About Staircase Code Violations or Escrow Inspections?

California Building Code (CBC) requires strict 42" landing guardrail heights, 4" baluster sphere rules, and graspable handrails. We ensure every custom installation passes city inspection without delay.

Learn About Our Code Compliance Retrofits →
Common Questions

Frequently Asked Questions

How does a floating staircase meet California Building Code open-riser rules? +

CBC Section 1011.5.5 permits open risers provided that a 4-inch sphere cannot pass between treads. We achieve this by either fabricating thick 3.5"–4" solid hardwood treads that reduce the vertical gap to under 4 inches or installing subtle transparent low-profile safety baffles.

Do floating staircases vibrate or bounce when walked on? +

Not when engineered by LLocal Stairs. We use heavy-gauge structural steel tubes (typically 8"x8"x1/2" wall thickness) and heavy welded gusset plates securely anchored into foundation footings and upper floor double rim joists to ensure maximum structural stiffness with zero bounce.

Request An Estimate

Get a Same-Call Estimate

Describe your staircase project, railing dimensions, or code requirements below. Allen Jukovic will contact you directly with an accurate estimate.

πŸ›‘οΈ Same-Call Estimates ⚑ Direct to Master Builder πŸ”¨ California Lic #424564 πŸ›οΈ CBC Code Compliant
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