Space PlanningFree Utility Tool

Intelligent Furniture Fit & Clearance Engine

Spatial decision studio for multi-piece arrangements. Evaluates ADA 36-inch walking corridors, 90° stairwell pivots, collision boundaries, and transparent Fit Scores.

Architectural Room Studio

18' × 14' • 216" × 168"

Snap to 6"

ℹ️ Entry Logistics: 32" standard doorway transit analyzed

Comfortable (≥ 36")Collision / Overflow

Click any piece to reposition • 1 grid = 12" (1 ft)

Room Dimensions & Transit Logistics

Room Length (ft)

Room Width (ft)

Doorway Clear Width (in)Standard residential entry: 32"–36"

Stairwell Pivot Width (in)Standard building stair landing: 36"

Verify 90° Staircase Pivot Transit Physics (√(Depth² + Height²))

Architectural Engine

Spatial Fit Score

Optimal Architectural Fit

4 pieces • 17% floor density

Max Baseline: 100
36" Primary Target

Dimensions

25 / 25

Clearance

35 / 35

Circulation

25 / 25

Transit

5 / 15

Deductions Breakdown:

Delivery transit issue detected through standard doorways or stairwells−10 pts

Furniture Schedule (4 pieces)

Configure dimensions, rotation & positioning

Load Architectural Room Suites:

Collision & Boundary Check✓ Clear

✓ No overlapping furniture items or wall overflows. All footprints are contained within the 18' × 14' room boundary.

Circulation CorridorsADA 36" Standard

Primary Architectural Thoroughfare✓ 44" / 36"

Meets ILikeDecor 36-inch primary circulation target (planning guideline) for unobstructed clear walkway.

Sofa-to-Coffee Table Knee Reach✓ 16" / 14"

Optimal conversational reach distance: 16" (standard is 14"–18").

Delivery Transit FeasibilityDoor & Stairs

Primary 3-Seater Sofa⚠️ Warning

Cross-section: 34" (Door: 32") • Diagonal: 49.5"

Coffee Table✓ Transit OK

Cross-section: 18" (Door: 32") • Diagonal: 28.4"

Media Console✓ Transit OK

Cross-section: 18" (Door: 32") • Diagonal: 30"

Reading Armchair⚠️ Warning

Cross-section: 32" (Door: 32") • Diagonal: 46"

Phase 3 Spatial Bridge Active

Render this spatial configuration in photorealistic 4K AI

Send your verified 18' × 14' dimensions and 4-piece furniture layout into our Real AI Room Designer for instant photo-real architectural visualization.

✨ Launch AI Designer →

Architectural Calculation Standard & Methodology

Our Methodology → →

📐 NKBA & IBC StandardsBased on 36" egress clearances & universal spatial codes

🛡️ Zero Retailer Bias100% independent formulas with zero sponsored overrides

⚡ Instant Contractor SpecPrintable and copyable specs for painter and flooring crews

🔒 100% Free & PrivateNo signup, no email gates, calculations run client-side

Clearance Standards & Physics

How Architectural Clearance & Spatial Fit Engine Works

Interior space planning involves two engineering dimensions: delivery transit feasibility (clearing tight door hinges and 90-degree stair landings) and everyday ergonomic circulation (living with multi-piece suites without colliding):

1. Transit Doorway Clearance: Smallest Cross-Section (min of Depth vs Height) ≤ Doorway Width − 1.5"

2. 90° Pivot & Stairwell Clearance: Diagonal Cross-Depth √(Depth² + Height²) ≤ Staircase/Elevator Width − 1.0"

3. Primary Circulation Corridors: Minimum 36" (91 cm) clear path from entryways to key living zones

4. Conversational Gaps: 14" to 18" between sofa cushion edge and coffee table rim

5. Dining Pull-Out Clearance: 36" minimum behind dining tables for occupied chairs; 42" if serving as a walkway

Guidance & Clarifications

Frequently Asked Questions

Architectural and ADA accessibility guidelines establish a 36-inch (91 cm) clear corridor for primary room pathways, 24 to 30 inches for secondary aisles, and 14 to 18 inches between sofa cushions and coffee tables for natural knee reach.

Delivery crews tilt furniture on its end into an "L" hook rotation. The critical constraint is the 3D Diagonal Depth (sqrt(Depth² + Height²)), which must be less than your narrowest hallway or staircase turn width minus 1.0 inch for banister margins.

Yes! Click "⚡ Run What-If Simulation" to test dimension reductions in real-time. The engine immediately recalculates your clearance aisles and Fit Score without losing your current layout.

The Fit Score (0–100) is evaluated across 4 deterministic architectural pillars: Dimension Fit (25%), Perimeter Clearance (35%), Circulation Corridors (25%), and Access/Transit Logistics (15%). Points are deducted for collisions, wall overflows, blocked doors, and tight aisles.

Spatial Planning & Blueprints