Structural Engineering Drawing
Foundation Layout Plan
Mayank's House  ·  G+1 Residential  ·  Isolated Footing System
11000 × 7600 mm
12 Footings
Depth: 1500 mm BGL
Isolated + Tie Beam
PCC M10 Below Footing
Date: 01.03.2026

Foundation Plan — Top View

ISOLATED FOOTINGS AT ALL 12 COLUMN POSITIONS  |  TIE BEAMS ALONG GRID LINES  |  ALL DIM IN mm
1200² 1400² 1200² 1200² 1400² 1200² 1200² 1400² 1200² 1200² 1400² 1200² TB 300×450 TB 300×450 TB 300×450 TB 300×450 A1 B1 C1 A2 B2 C2 A3 B3 C3 A4 B4 C4 Kitchen / Bedroom Zone Bedroom Zone Living / Dining Zone Parking / Entrance Zone A B C 1 2 3 4 3800 3800 3500 3500 4000★ ← 7600 mm → ← 11000 mm → N X–X X–X

Section X–X — Foundation Detail

THROUGH GRID LINE 3  |  SHOWING FOOTING DEPTH, PCC, TIE BEAM, PLINTH  |  NOT TO SCALE
NGL ±0 PCC M10 PCC M10 PCC M10 TIE BEAM 300 × 450 mm @ Plinth Level Plinth / Floor Level +450mm FFL +450 GF Slab 125mm 450mm 1250mm 450mm 100mm F1 · 1200×1200×450 F2 · 1400×1400×450 F1 · 1200×1200×450 A B C Total Depth from NGL = 1800mm (1.5m BGL min. + 0.3m PCC) TOTAL EXCAVATION 1800mm
Legend
Isolated Footing (RCC)
PCC Bed (M10, 100mm)
Tie Beam (300×450mm)
RCC Column (300×300mm)
Plinth Wall / Boundary
Soil / Excavation Zone
Footing Schedule
MarkSize (mm)DepthQtyAt
F1 1200×1200 450mm 8 A&C rows
F2 1400×1400 450mm 4 B spine
PCC Ftg+300 100mm 12 All ftgs

F2 (central spine) is larger
as B-columns carry higher load
from both adjacent bays.

Depth Schedule
Excavation Depth (BGL)1800 mm
PCC Thickness (M10)100 mm
Footing Thickness450 mm
Footing Top → NGL1250 mm
Plinth Height (NGL)+450 mm
Tie Beam Size300 × 450
GF Slab Thickness125 mm
Col. Stub (BGL)1250 mm
Column Size300 × 300
Clear Cover (Ftg)50 mm
Clear Cover (Beam)40 mm
Material Specs
PCC GradeM10
Footing GradeM20
Tie Beam GradeM20
Column GradeM20
Steel (Ftg)Fe 415
Steel (Beam/Col)Fe 500
SBC Assumed150 kN/m²
Quick Stats
12
Footings
1.8m
Depth BGL
M20
Concrete
F1+F2
Footing Types
+450
Plinth mm
G+2
Future Ready
Engineering Notes
· SBC 150 kN/m² assumed for normal soil
· Increase depth to 2.0m if black cotton soil
· Anti-termite treatment before PCC
· Waterproofing coat on footing sides
· B-column footings (F2) sized for central spine load
· Tie beams prevent differential settlement
· All dims to be verified by structural engineer