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Arkdox Architect & Designer Toolkit
Practical calculators for architects, interior designers and project teams.
Vastu Shastra CompassUpload a floor plan, map room directions and generate a detailed placement and remedies report.Open calculator → Vastu Shastra – Ayadi & Building DimensionsAyadi Shadvarga checks, auspicious dimension finder, Vastu Purusha Mandala, entrance analysis and A4 report.Open calculator → Shed & Sports CalculatorWarehouse and shed sizing, open box cricket, pickleball, badminton, basketball, bowling, skating, shooting and archery facilities: areas, quantities, cost ranges and a printable report.Open calculator → Sun Path & Shadow CalculatorInteractive building mass, solar dome, seasonal paths and shadow study.Open calculator →Interior Studio
Tools to run an interior design practice: clients and invoices, estimates and BOQs, drawing schedules and cost rates. Everything stays in your browser and leaves as a PDF. Subscriber tools open with your licence key; the free demos are open to everyone.
Architect Studio
Tools to run an architecture practice: civil estimates, fee proposals and stage billing, drawing phases and registers, and a vendor directory. Everything stays in your browser and leaves as a PDF. Subscriber tools open with your licence key; the free demos are open to everyone.
Editable documents
Onboarding, QA, MOU and handover templates in five subscriber packs, plus free guides and samples. Search every document free, then open and edit the ones in your plan right on the page. Add your logo, signatures and review stamps, and save as a PDF.
All results are estimates for preliminary use. Cross-check with local standards, regulations and laws, and confirm with a qualified professional before relying on them.
Vastu Shastra Compass
Orient your home. Map every room. Explore traditional placement guidance and practical ways to improve the layout.
Need traditional dimension checks? Open Vastu Shastra – Ayadi & Building Dimensions.
Home compass & plan
North-up referenceDashed rectangle = dwelling extent · cross = center · numbered pins = rooms · shaded disk = illustrative Brahmasthan (central zone). Colored sectors indicate direction only, not favorable or unfavorable areas.
Your room schedule
Detected labels are placed automatically and tagged “Auto-read.” Their text positions approximate room centers; check and re-mark offset labels. OCR confidence measures text recognition, not room-position or Vastu accuracy. Change any room type or direction below. Selecting a direction converts that row to a manual entry; use “Re-mark” to place it on the image again.
| # | Room | Use | Direction | Finding | Actions |
|---|
Automatically read Hindi/Marathi room types are given English labels for reporting. For PDF export, use English/Latin characters in project and manual room labels; this toolkit’s PDF font does not support Devanagari.
Verify the orientation and add at least one room to generate a report.
Explore the 16 directions & 32 sectors
An interactive ARKDOX Vastu compass chart: degree ring, 32 sectors, 16 directions, elements, room zones and the Brahmasthan centre. The wheel stays north-up; the overlay on your plan rotates to its confirmed north. Select a sector or enter an exact bearing to inspect its range and the rooms within it.
This explores the reference. It does not change your plan’s north.
Rooms in this sector
The center is shown as Brahmasthan, not assigned to a radial sector. Color distinguishes directions only; it does not indicate luck, health or room suitability.
Read the sector convention
Each of the 16 directions spans 22.5°. Each of the 32 sectors spans 11.25°. Following the supplied charts, N1 begins at 315°, N4 ends at north (0°), N5 begins at 0°, E1 at 45°, S1 at 135° and W1 at 225°. Ranges include their start and exclude their end. Values close to a boundary need careful north and position verification.
The radial N1–W8 codes are chart references, not a measured division of external wall lengths into doorway padas. This tool continues to assess room preferences using the eight-direction rules; finer sectors are reported without inventing more precise Vastu verdicts. Health, organ, money, relationship, metal and remedy claims from the reference images are not used as diagnostic rules.
Room placement chart for the home
North-up reference. This chart lists common preferences; your marked plan above rotates to the north angle you enter. Fine-sector readings are available in the reference wheel and report; doorway padas and a full Vastu mandala require separate assessment.
Complete room and feature guide
| Room / feature | Preferred | Alternative | Traditional concern | Planning note |
|---|
How directions, findings and remedies are determined
Each marked point is assigned to one of eight equal 45° sectors around the confirmed center, after rotating for north. A central disk with radius 12% of the shorter dwelling dimension is a software convention for screening the central zone; it is not a measured 9×9 mandala. Rooms near a sector edge or extending across multiple sectors need manual review. Auto-read uses recognized label positions as provisional room centers; it does not trace walls or interpret furniture. Low-confidence text is flagged for review. OCR may miss, merge or misclassify labels, especially on rotated text, low-resolution scans or unlabeled plans. Manual directions bypass image geometry.
Preferred = matches this tool’s primary reference; Alternative = listed secondary option; Traditional concern = explicitly flagged by this reference; Review = no single recommendation or a specialist assessment is needed. There is no scientific risk score. “Vastu dosh” here means only a mismatch with a selected traditional rule. Practical changes are design suggestions; no ritual, object, color or remedy is presented as a proven cure.
Entrance location is always referred for detailed review: north/east alone cannot establish a favorable doorway. This tool does not assess padas, dimensions, slopes, adjacent buildings, head direction, stove-facing direction, structural loads or full-room polygons. Assess each floor separately. Confirm distorted scans, missing corners and irregular shapes before relying on the preview.
Core room references: Rana et al., International Journal of Arts Architecture & Design (2025), §3; House Plans as per Vastu Shastra, sample guide. The extended room chart is Arkdox’s simplified planning reference, not a universal traditional standard. Bathroom and toilet entries are intentionally separate; schools disagree on some placements.
Vastu Shastra – Ayadi & Building Dimensions
Check building dimensions against traditional Ayadi Shadvarga formulas, find nearby auspicious dimensions, and generate a mandala, entrance analysis and A4 report. Traditions are never mixed, and unverified rules stay disabled. Open the Vastu Shastra Compass for room placement.
Sun Path & Shadow Calculator
Explore solar movement, building shadows, wind and heat in one architectural study. Upload your own 3D model, pull in the surrounding buildings for your site and see how they change the sun.
From solar geometry to design decisions.
Approximate geometric horizon crossings and potential direct-sun duration. All times are local; terrain, nearby buildings and weather are excluded.
Hourly shadow schedule
Roof-height point projected onto flat ground, 06:00–18:00. A dash means the sun is below the horizon. Export CSV for all 24 hours.
Facade exposure
Potential time each vertical face points toward the sun. Face A is local north at 0° rotation; B/C/D follow clockwise. This is not an energy or indoor daylight metric.
Design observations
Seasonal comparison
Representative dates in the study year, using the same entered UTC offset. Adjust for daylight saving where applicable. These sample times do not establish the annual maximum shadow.
Shadows through the day and the year.
Plan views with north up. Change the times in section 06; the sheets are included in the PDF and print.
What the surroundings do to your sun.
Direct-sun hours on each face and the roof, open site compared with the neighbouring buildings in place.
Faces are sampled at nine points and the roof at nine points, every 10 minutes. Neighbour heights are mapped values or your default; check the key neighbours on site. Trees, terrain and reflections are not included. Turn on “Sun-hours map” to see the ground.
Climate of the site.
Wind roses, monthly temperature and the radiation that reaches each wall and the roof.
What it means for the design
Method, reading the diagram & study limits
Solar position uses the NOAA general solar-position equations. Values are approximate geometric solar-center angles, without atmospheric refraction. Azimuth and wind bearings are clockwise from true north. Seasonal curves use representative dates (March 20, June 21, September 22 and December 21), not calculated astronomical event times. The yellow dome shows directions, not the distance to the sun.
The default model is one rectangular building on a flat site. The ground shadow is the projection of its full mass; the reported length is the horizontal displacement of a point at roof height. An uploaded model (OBJ, STL, GLB, glTF) replaces the box: every triangle is projected onto the ground along the sun direction, and meshes above 6,000 triangles are simplified for speed. The schedule, facade and roof figures then use the model's bounding box. Surrounding buildings are OpenStreetMap footprints extruded to their mapped height, levels × storey height, or your default height; shadows fall on flat ground and do not fall onto your own model. The sun-hours map samples the day every 15 minutes with all shadows in place.
Climate data are Open-Meteo hourly ERA5 reanalysis for the last three full years: wind at 10 m over open terrain (lower between buildings), temperature, and direct plus diffuse radiation converted to each wall and the roof with a simple isotropic sky and 20% ground reflectance. They suit early design decisions, not performance simulation. Wind arrows visualize prevailing directions, not airflow simulation. Use this for concept planning and verify project-critical results in a detailed model.