ARCHITECTURE  /  AUTOCAD  /  CIVIL ENGINEERING

From Concept to Complete Design

Spireix helps you design, draft and visualize modern buildings with precision and creativity. Turn your AutoCAD blueprint concepts into detailed structural engineering plans — faster, smarter, simpler.

From Concept to Complete Design: Architectural Blueprint to Reality
01 / 3D BIM

3D Visualization

Experience architectural AutoCAD plans in realistic, high-fidelity 3D modeling before physical construction breaks ground.

02 / CAD DWG

Architectural Drafting

Draft and inspect precise AutoCAD floor plans, building cross-sections, structural schedules, and elevation detail views.

03 / SUITE

Smart Civil Tools

Compute rebar BBS, IS 456 RCC beams, footing designs, and concrete mix proportions in-browser with zero latency.

04 / BOQ

Project Management

Organize structural bills of quantities, steel tonnage takeoffs, and job-site drawing revisions seamlessly.

TRUSTED BY ARCHITECTS, STRUCTURAL ENGINEERS & SITE BUILDERS
RESIDENTIAL·COMMERCIAL·INTERIOR·INFRASTRUCTURE
LIVE INTERACTIVE WORKBENCH

AutoCAD & Civil Engineering Simulation Console

Inspect real-time structural calculations, rebar bending dimensions, and codified Indian Standards directly in your browser without installs.

Explore all 12 Civil Suites→

RCC Singly Reinforced Rectangular Beam

IS 456:2000 Cl 38.1
N.A.b = 250 mmD = 500 mmCROSS-SECTION DETAIL
Moment Capacity (Mu)
146.85 kNm
Factor of Safety γm = 1.5
Limiting NA Depth (xu,max)
207.0 mm
Section State
Under-Reinforced
Minimum Tension Steel: Ast,min = 217 mm² (Satisfied)

Build architectural blueprints on software that thinks in millimeters

spireix_floorplan_l2.dwg
1:100 Scale● Snapping Active
CAD
Residential Villa Level 02
Structural grid: A1 to E4 · 350 m² Gross Area
3D WireframeDWG Export
6,000 mm5,400 mm3,800 mmLIVING ROOM36.0 m²KITCHENMASTER SUITEBALCONY
Coords: X: 482.50 Y: 120.30 Z: 0.00Grid snap: 100mm | Ortho: ON

Architects and structural engineers draft over 250,000 m² of building blueprints on Spireix.

From initial conceptual floor plans to approved council submissions, Spireix eliminates CAD friction with automated dimension strings, layers, and instant DWG vectors.

Capabilities
  • Parametric Section Cuts & Elevations
  • AutoCAD DWG Line Convention Standards
  • Architectural Drawing Book Archives
  • Vector Snapping & 1:1 Scale Verification

Design structural RCC elements that withstand extreme loads effortlessly

Civil consultants and job-site teams calculate certified Bar Bending Schedules and beam capacities in seconds.

Every engine is built strictly in accordance with Bureau of Indian Standards (IS 456, IS 2502, IS 1904) to provide verified moment resistance, shear reinforcement spacing, and steel tonnage takeoffs.

Capabilities
  • IS 456:2000 Limit State Flexure & Shear
  • Automated Hook & 45°/90° Bend Deductions
  • D²/162 Metric Steel Tonnage Matrix
  • Pad Footing Punching Shear Check
is456_structural_core.calc
VERIFIED BIS
Moment Mu
146.85 kNm
Neutral Axis xu
138.4 mm
Steel Area Ast
804 mm²
Section State
Under-Reinf
Rebar Cutting & Bending TakeoffBar Mark: B-101
Diameter:4 Nos × 16mm φ
Cutting Length:4,726 mm
Total Weight:29.84 kg

Calculate concrete batches and commercial costs with zero ads

concrete_mix_is10262.batch
Grade: M25W/C: 0.45
1.0 m³ Batch Material TakeoffIS 10262:2019 Codified Mix Proportions
Target: 31.6 MPa
Cement
412 kg
8.24 Bags
Sand (Fine)
718 kg
Zone II Sand
Coarse Agg
1,180 kg
20mm Graded
Water
186 Litres
Potable
Concrete Ratio Proportion (1 : 1.74 : 2.86)Total Density: ~2,496 kg/m³

Commercial contractors, material suppliers, and surveyors compute site batches daily.

Eliminate costly mix errors and excess aggregate procurement. Every batch calculation is performed 100% locally in your browser with zero data harvesting and zero delay.

Capabilities
  • IS 10262 Target Strength & Standard Deviation
  • Dry Volume Swelling Factor (1.54×)
  • Brickwork & Plaster Mortar Estimating
  • GST Tax & Kirana Price Conversion
IS CODES & SPECIFICATIONS

Complete Civil Engineering Toolkits

Engineered strictly according to Bureau of Indian Standards (BIS) and Indian Roads Congress (IRC) with verified calculations.

All 12 Suites Overview→
CAD / DWGDrafting Archive

AutoCAD & Blueprint Detailing

Standardized architectural drafting manuals, structural reinforcement layouts, section cuts, and blueprint reading guides.

Plans · Sections · ElevationsLaunch →
IS 2502 / SP 34Rebar Schedule

Bar Bending Schedule (BBS)

Automated rebar cutting length calculation with hook deductions (45°, 90°, 135°), unit weight D²/162, and steel tonnage.

Cutting Lengths · Steel TonnageLaunch →
IS 456:2000Flexure & Shear

RCC Beam Design & Checker

Limit state moment of resistance (Mu,lim), neutral axis depth (xu/d), tensile steel (Ast), and shear stirrup spacing.

Mu,lim · Ast Req · Shear LinksLaunch →
IS 456:2000 Cl 39Axial & Biaxial

RCC Column Design & P-M Curve

Short and slender column axial capacity (Pu), minimum eccentricity checks, longitudinal rebar percentage, and lateral ties.

Pu Capacity · Lateral TiesLaunch →
IS 456 / IS 1904Substructure

Isolated & Combined Footings

Pad footing area from soil bearing capacity, one-way shear, two-way punching shear check, and bending moment reinforcement.

Punching Shear · Base RebarLaunch →
IS 6403:1981Geotechnical

Soil Bearing Capacity (SBC)

Terzaghi and IS bearing capacity factors (Nc, Nq, Nγ) with water table corrections, strip, square, and circular footings.

Safe Bearing Capacity (kN/m²)Launch →
IS 10262:2019Material Mix

Concrete Mix Design

M20 to M50 standard and high-strength mix design, target mean strength, w/c ratio curves, and batch dry proportions.

Target f'ck · Batch QuantitiesLaunch →
IS 456 Cl 26.2Bond & Splice

Rebar Lap & Development Length

Tension and compression development length (Ld), anchorage bond stress (τbd), and contact lap splicing for Fe500/Fe550.

Ld in Tension / CompressionLaunch →
Quantity SurveyMasonry Takeoff

Brickwork & Plaster Estimator

Standard modular and traditional brick count, cement bags (50kg), dry sand volume in m³ & cft, with wastage allowances.

Brick Count · Mortar BagsLaunch →
Survey / RevenueLand Survey

Land Survey & Area Unit Converter

Precision conversion across Indian revenue units: Bigha, Katha, Guntha, Ground, Acre, Hectare, Sq Ft, and Gaj.

Bigha · Acre · Guntha · Sq FtLaunch →
IRC 37:2018Highway & Pavement

Flexible Pavement Design

California Bearing Ratio (CBR), Cumulative Standard Axles (msa), bitumen layer thicknesses (BC, DBM), and granular sub-base.

Layer Depths (mm) · CBRLaunch →
BIS StandardsCodes Library

IS Codes Reference Explorer

Complete digital index and clause summary of Indian Standards for concrete, steel, earthquake design, and loading standards.

IS 456 · IS 1893 · IS 875Launch →