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Brickwork & Mortar Quantity Calculator

Calculate total red clay bricks, AAC blocks, cement bags & sand volume (CFT/m³) for 9", 4.5" & 13.5" masonry walls under IS 2212.

Wall Dimensions & Mortar Inputs

Cutout Deductions (Doors & Windows)

Material & Labor Unit Rates

Brickwork & Mortar Quantity Summary

Total Bricks Needed (incl. Wastage) 1,072 Net Exact Bricks: 1,021 pcs
Cement Bags Required (50 kg) 3.8 Bags (190 kg) Mortar Mix Ratio
Sand Volume Required 18.5 CFT (0.84 Tons) Coarse / River Sand
Dry Mortar & Water Vol 18.8 CFT (0.53 m³) Water: 114 Liters | Net Wall: 135 CFT

Material & Labor Cost Breakdown

Item Description Rate Estimated Cost
Red Clay Bricks / Blocks ₹9.00 / pc ₹9,648
OPC / PPC Cement (50kg) ₹380 / bag ₹1,444
Fine River Sand / M-Sand ₹55 / CFT ₹1,018
Masonry Labor Charges ₹35 / CFT ₹4,725
Grand Total Estimated Cost: ₹16,835

Complete Engineering Guide: Brickwork & Mortar Quantity Estimation

IS 2212 & IS 1077 Civil Code Standards

Brickwork & Mortar Calculator: Civil Engineering Quantity Master Guide

In civil engineering and residential construction across India, brick masonry forms the main structural and non-structural envelope of residential houses, commercial buildings, boundary walls, and partition structures. Utilizing an online brickwork & mortar calculator allows civil engineers, contractors, site supervisors, architects, and homeowners to accurately calculate the total number of bricks, cement bags (50 kg), sand volume in CFT and cubic meters, dry mortar volume, and material cost before placing procurement orders.

Knowing how to calculate bricks in a wall prevents material shortages on-site and eliminates financial over-ordering. According to Indian Standard IS 2212 (Code of Practice for Brickwork) and IS 1077 (Common Burnt Clay Building Bricks), accurate brick masonry estimation requires accounting for wall dimensions, brick size with mortar joints (typically 10 mm thick mortar joint), mortar mix ratio (1:3, 1:4, 1:5, 1:6), door/window cutout deductions, and a 5% wastage allowance.

Standard Brick Sizes & Wall Thickness Specifications in India

In Indian construction, two primary types of clay bricks are used: Modular Bricks and Traditional Non-Modular Indian Clay Bricks:

Brick Type Nominal Dimensions (without Mortar) Modular Dimensions (with 10mm Mortar) Standard Bricks per m³
Standard Modular Brick (IS 1077) 190 × 90 × 90 mm 200 × 100 × 100 mm 500 Bricks / m³
Traditional Indian Red Clay Brick 9" × 4.25" × 2.75" (228.6 × 108 × 70 mm) 9.5" × 4.5" × 3.0" (241 × 114 × 76 mm) ~470 to 500 Bricks / m³
Fly Ash Building Brick 230 × 110 × 70 mm 240 × 120 × 80 mm ~434 Bricks / m³
AAC Lightweight Block (4" / 6" / 9") 600 × 100/150/230 × 200 mm 610 × 100/150/230 × 210 mm ~83 Blocks / m³ (for 4")

Step-by-Step Mathematical Calculation Method (IS 2212 Code)

  1. Net Wall Volume ($V_{net}$): Calculate gross volume ($Length \times Height \times Thickness$) in CFT or $m^3$, then subtract all door and window opening volumes.
  2. Number of Bricks: Divide Net Wall Volume by the volume of 1 brick including 10mm mortar joint ($V_{brick+mortar}$).
  3. Wet Mortar Volume ($V_{wet}$): Subtract the raw volume of solid bricks from the total net masonry wall volume ($V_{net} - N \times V_{brick\_raw}$).
  4. Dry Mortar Volume ($V_{dry}$): Multiply wet mortar volume by 1.33 (33% allowance for dry shrinkage voids and joint filling).
  5. Cement Bags: $\text{Cement } (m^3) = V_{dry} \times \frac{\text{Cement Ratio}}{\text{Total Ratio}}$. Convert to bags by dividing by $0.034722 \, m^3$ (50 kg bag volume).
  6. Sand Quantity: $\text{Sand } (CFT) = V_{dry} \times \frac{\text{Sand Ratio}}{\text{Total Ratio}} \times 35.3147$.

Frequently Asked Questions (FAQs)

How many bricks are required in 100 sq.ft of 4.5-inch partition wall?

For a 4.5-inch half-brick partition wall (37.5 CFT volume), approximately 500 to 530 traditional bricks (including 5% wastage) are required.

What is the recommended cement-sand mortar ratio for brickwork?

For 9-inch load-bearing walls, a 1:4 or 1:5 mortar mix (1 part cement to 4 or 5 parts sand) is recommended under IS 2212. For 4.5-inch non-load bearing partition walls, a 1:3 or 1:4 rich mortar mix with wire mesh reinforcement every 3rd layer is specified.

Why is 33% added for dry mortar volume?

When water is added to dry cement and sand, the volume shrinks by ~25% as fine cement particles fill the air voids between sand grains. Additionally, 8% extra allowance is made for joint filling and wastage, resulting in a standard multiplier of 1.33 for dry mortar volume.

© 2026 Engineering Suite. All calculations based on Indian Standard IS 2212 & IS 1077 Code Specifications.

Brickwork & Mortar Calculator: Engineering Theory & Quantity Estimation Guide

Brickwork is the oldest and most widely used form of masonry construction worldwide. From load-bearing walls in single-storey homes to partition walls in multi-storey RCC framed buildings, accurate brickwork estimation is fundamental to material planning and project cost control. This comprehensive guide covers the engineering theory of masonry construction, brick standards, mortar science, and quantity calculation methods as per IS codes.

1. Standard Brick Sizes in India (IS 1077)

IS 1077: Common Burnt Clay Building Bricks specifies two standard sizes: Modular Brick: 190 × 90 × 90 mm (nominal 200 × 100 × 100 mm including 10mm mortar joints); Non-Modular (Traditional): 230 × 115 × 76 mm (nominal 240 × 125 × 86 mm with joints). The choice of brick size affects the number of bricks per sqm significantly — modular bricks give approximately 50 bricks/sqm in a 100mm wall, while non-modular bricks give approximately 48 bricks/sqm in a 115mm wall.

2. Bricks Per Square Metre: Standard Values

Wall TypeBricks/m² (Modular)Bricks/m² (Non-Modular)
Half-brick wall (90 / 115 mm)5048
One-brick wall (190 / 230 mm)10096
One-and-half brick wall150144

3. Mortar Calculation for Brickwork

The volume of mortar in brickwork depends on the brick size and joint thickness (typically 10mm). Mortar volume is approximately 25–30% of the total brickwork volume. For 1 m³ of brickwork in 1:6 mortar: Volume of mortar = 0.30 m³; Dry volume = 0.30 × 1.3 = 0.39 m³; Cement = (1/7) × 0.39 = 0.056 m³ ≈ 1.62 bags; Sand = (6/7) × 0.39 = 0.334 m³.

4. Bond Types in Brickwork

Stretcher Bond: Most common in modern construction; all bricks laid lengthways (stretcher face visible); used for half-brick partition walls; simple and economical.
English Bond: Alternate courses of headers and stretchers; strongest bond; used for load-bearing walls; provides good interlocking across wall thickness.
Flemish Bond: Alternate headers and stretchers in each course; visually attractive; slightly weaker than English bond but suitable for non-load-bearing and decorative applications.

5. Load-Bearing vs RCC Framed Brickwork

In load-bearing masonry, the walls carry the full structural load of floors and roof. Wall thickness is designed per IS 1905 (Code of Practice for Structural use of Unreinforced Masonry). In modern RCC framed buildings, brickwork is used only as infill or partition walls (non-structural). For RCC frames, 115mm (4.5-inch) partition walls are common; for external walls requiring thermal insulation, 230mm (9-inch) or cavity wall construction is preferred.

6. Frequently Asked Questions

Q1: How many bricks in 1 cubic metre?
For modular bricks (190×90×90mm) with 10mm mortar joints: approximately 494 bricks per m³ of brickwork (for 1-brick thick wall). For non-modular bricks: approximately 440–460 bricks per m³.

Q2: What mortar ratio is used for brickwork?
1:6 (cement:sand) is most common for general brickwork. 1:4 is used for waterproof or below-DPC (damp-proof course) brickwork. 1:3 is used for engineering brickwork in aggressive environments.

Q3: What is the IS code for brickwork?
IS 2212: Code of Practice for Brickwork. IS 1077: Specification for common burnt clay building bricks. IS 1905: Code of practice for structural use of unreinforced masonry.

Q4: What is a DPC and why is it important?
DPC (Damp Proof Course) is a waterproof layer (typically 1:2 cement mortar with 2% waterproofing compound, or bituminous felt) laid at plinth level to prevent moisture rising from the ground into walls (rising damp).

Q5: How do I estimate bricks for a room?
Calculate wall area (perimeter × height), deduct openings (doors/windows), multiply by brick density (50 bricks/sqm for half-brick wall, 100 for full-brick). Add 5–8% for breakage wastage.

Q6: What is efflorescence in brickwork?
White salt deposits on the brick surface caused by water-soluble salts (sulphates) in bricks or mortar migrating to the surface as water evaporates. Prevent by using low-sulphate bricks, avoiding salt-contaminated water, and applying waterproof external plaster.

Q7: Can I use fly ash bricks instead of clay bricks?
Yes. Fly ash bricks (IS 12894) are eco-friendly, have higher compressive strength than many clay bricks, better dimensional accuracy, lower water absorption, and are approved for use in load-bearing and framed structures.

Q8: What is the minimum compressive strength for clay bricks?
IS 1077 specifies minimum 3.5 N/mm² for Class 3.5 bricks; 5.0 N/mm² for Class 5; 7.5 N/mm² for Class 7.5; up to 35 N/mm² for engineering bricks. Higher classes are used for load-bearing walls in multi-storey construction.

Q9: What thickness of wall should I use for a single storey house?
For load-bearing construction: minimum 230mm (one-brick) for external walls and 115mm for internal partition walls, as per NBC 2016 and IS 1905. For RCC framed construction, 115mm brick infill is standard for internal partitions, 230mm for external walls requiring thermal performance.

Q10: How do I prevent cracks in brickwork?
Use adequate mortar joint thickness (9–10mm), provide movement joints at long wall lengths (>6m), use proper expansion joints at junctions with RCC members, ensure proper curing of new brickwork, and avoid constructing in freezing conditions.