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How to use the Boundary Wall Estimator

The Boundary Wall Estimator works out the materials and cost of a brick compound wall with RCC columns and plinth beam the way it is done on Indian sites: excavation, PCC, footings, columns, beams, brickwork, plaster, cement, sand, aggregate and a steel schedule.

Open the Boundary Wall Estimator ›

Quick start

  1. Choose your units in the bar at the top (feet/inch or metre/mm).
  2. Fill 1 Plot & wall: plot length and width, wall height, gate width and column spacing.
  3. Check 2 Foundation and 3 Column, beam & masonry; open 4 and 5 only to change masonry, plaster and steel details.
  4. Read the Quantities, Materials, Steel schedule and Abstract on the right. Print or save as PDF.

Units bar

FieldWhat to enterTypical valueTip
Length inputfeet or metre — for plot size, height, spacing, depth, footing size.feet
Section inputinch or mm — for thicknesses and member sizes.inche.g. 10 × 10 in column, 5 in wall.
Volume outputcft / sqft or cum / sqm.cft
Steel outputlength + weight, or weight only.length + weight

Buttons: Print / save PDF, Expand all / Collapse all the input cards, Reset to defaults.

1 · Plot & wall

FieldWhat to enterTypical valueTip
Plot length / Plot widthOuter size of the plot along the wall line.e.g. 30 × 40 ftPerimeter = 2 × (L + B).
Wall height above groundHeight of the wall above ground level.5 – 7 ft
Gate / gap width (deducted)Total width of gates and openings.10 – 12 ft for a car gateDeducted from the perimeter.
Spacing between columnsCentre-to-centre spacing of RCC columns.8 – 10 ft (2.5 – 3 m)Number of columns = perimeter ÷ spacing, rounded up.
Open run, not a closed loopTick if the wall does not close on itself (e.g. one side only).UntickedAdds one end column.

2 · Foundation

FieldWhat to enterTypical valueTip
Excavation depth below GLDepth of the foundation pit.3 – 4 ft
Footing size L × BPlan size of each column footing.3 × 3 to 4 × 4 ft
Footing thicknessIn the section unit.9 – 12 in
PCC thicknessLean concrete under the footing.4 – 6 in
PCC mix1:3:6, 1:4:8 or 1:2:4.1:4:8

3 · Column, beam & masonry

FieldWhat to enterTypical valueTip
Column size b × DRCC column size.9 × 9 or 10 × 10 in
Plinth beam b × DBeam size.9 × 12 in
Number of beam levelsPlinth beam only = 1; with a top tie beam = 2.1 – 2
Wall thicknessBrick wall thickness.5 in (half brick) or 10 in
Concrete gradeM15 – M35.M20
Deduct columns from brickworkRemoves the column volume from the wall.Ticked

4 · Masonry & plaster

FieldWhat to enterTypical valueTip
Bricks per cum of masonryNumber of bricks in 1 m³ with joints.450 – 500 (modular)
Mortar as % of masonry volumeWet mortar volume.25 – 30 %
Masonry mortar ratioCement : sand.1:6
Plaster thickness (mm)12 – 20
Plaster faces1 or 2.2
Plaster mortar ratio1:4 – 1:6
Dry volume factor for mortarWet to dry volume.1.27 – 1.33
Wastage on materials (%)Added to all materials.2 – 5

5 · Reinforcement

FieldWhat to enterTypical valueTip
Footing bars: dia & spacingMesh in each footing.10 mm @ 150
Column main bars: nos & dia4 – 12 mm
Column ties: dia & spacing8 mm @ 150
Beam through bars: top & bottom nos, diaContinuous bars.2 + 2, 12 mm
Extra bars: nos & dia, run over % of lengthExtra bars at supports or mid-span.2 – 12 mm over 30 %
Beam ties: dia & spacing8 mm @ 150
Cover: footing / column / beam50 / 40 / 25 mm
Tie hook allowanceHook length per tie.20 × dia
Column bar bend into footingL-bend length.200 mm
Lap / wastage on steel (%)3 – 5

Results

The right side shows Quantities (excavation, PCC, RCC by member, brickwork, plaster), Materials (cement bags separately for concrete, mortar and plaster, then totalled; sand; aggregate; bricks), the Steel schedule (bar-wise length and weight) and an Abstract. One cement bag is taken as 50 kg = 0.0347 m³.

Questions people ask

How many columns does my wall need?

The tool divides the wall length (perimeter minus the gate) by the column spacing and rounds up; an open run adds one more column. Keep the spacing around 8–10 ft.

Can I use metres instead of feet?

Yes. Change Length input to metre and Section input to mm in the units bar.

Does it give the cost?

It gives the material quantities and abstract; multiply by your local rates, or use RCC Estimator Pro for a full building.

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