மனையடி சாஸ்திரம்

Manaiyadi Sastram is a traditional Tamil practice that links certain house/plot dimensions (in feet—‘adi’) with likely outcomes such as prosperity, comfort, fame, or obstacles. Families still consult a simple “adi list” like the one in your image while finalizing a plan with the engineer or architect. Think of it as a cultural checklist that sits alongside Vastu/layout, structural safety, and municipal rules.

What the chart means
Each row in the chart associates a specific length (e.g., 6, 8, 16, 17, 20, 21, 26, 27, 30, 31, 33, 35, 36, 39, 41, 42, 50…) with a short result phrase (நன்மை, செல்வம், லட்சுமி கடாட்சம், ராஜயோகம், இன்ன பிற). In plain terms, some lengths are traditionally read as very favorable for wealth, happiness, growth, royal luck, divine grace, etc., while a few are treated as neutral/avoid depending on the list your family follows. The idea is simple: if you can tune one key dimension to a “good” number, do it.

Which dimension to measure?
Customs differ, so pick one consistent method with your priest/architect:
Built-up length of the house (outer wall to outer wall), or
Frontage (east–west) or depth (north–south) of the plot, or
In apartments, sometimes the primary hall/flat length is considered.
Always measure in feet (adi); if you have decimals, convert to inches and discuss whether to round up or adjust the plan slightly to reach the desired whole number.

How people actually apply it
Freeze the budget & FSI first. Manaiyadi Sastram is never a substitute for engineering.
Choose a favorable ‘adi’. From the chart, families often try to land on numbers that cite nallmai/selvam/Lakshmi kataksham/raja-yogam.
Nudge the plan. Architects may tweak wall thickness, set-back, or room size by a few inches so the final built-up length matches the chosen adi.
Cross-check with Vastu. Orientation, slope, water source, kitchen/pooja/bed placement, stair direction, and door position matter more than a single lucky number.
Perform a simple griha-pravesham/bhoomi poojai when you start or move in; many believe good rituals amplify good numbers.

Practical tips
If a perfect number is impossible (setbacks or by-laws), don’t force unsafe changes—pick the safest structure and compensate with muhurtham, cleanliness, ventilation, light, and generous north-east (eesanya) clarity.
Keep the house dry, well-lit, and uncluttered; tradition holds that order invites prosperity.
Treat manaiyadi as a supporting cue—final success still depends on planning, workmanship, and wise financial choices.

A gentle reminder
Manaiyadi Sastram is part of our cultural heritage. Use the adi chart as an aid, not as a rigid rule. Align it with professional design, local regulations, and your family’s Vastu guidance to create a home that is safe, comfortable, and auspicious.