As a civil engineer or construction professional, having a solid grasp of thumb rule – how to calculate the number of bricks per square meter (m2) can make a significant difference in your project outcomes. This detailed article covers all the key aspects that every site engineer and civil engineering student should be familiar with.
In this article, we explained about thumb rule calculation for brickwork and bricks needed for Square meter – Sq/m, before we are going to calculation we have to know the size of the brick to proceed further
SIZE OF THE BRICK
Generally, four standard-sized bricks are used in India.
Modular Brick / Metric Bricks – 190 x 90 x 90 mm or 7.48” x 3.54” x 3.54” These are machine-made bricks
Non-Modular Bricks – 230 mm x 110 mm x 70 mm or 9″ x 4.33″ x 2.75″
Conventional Bricks – 230 x 110 x 110 mm or 9″ x 4.33″ x 4.33″
English Size Bricks – 230 x 115 x 75 mm or 9″ x 4.5″ x 3″. (It is usually used in India.)
There are other dimensions depending on the country. The brick weight must not exceed 3 kg.
In this calculation, we will use the English Bricks size
Let’s start,
Thumb Rule for Brick Calculation Per Square Meter/Sqm
How to calculate the number of Bricks per Square meter (m2)
4″ brick wall or single layer or half brick
Size → 230mmx110mmx75 mm (0.230×0.110×0.075 m)
Thickness of mortar = 10 to15mm (0.01m)
By adding the thickness of the mortar
Length of Bricks in meter (L) = 230mm + 10mm = 240mm – 0.240m
Width of Bricks in meter (W) = 110mm + 10mm = 120mm – 0.110m
Thickness of Bricks in meter (T) =75 mm + 10mm = 85mm – 0.085m
Size of the brick with mortar → 240mmx120mmx85 mm (0.240×0.120×0.085) mm
No. of bricks in 1sq.m = Area of brickwork/ Area of one brick with mortar.
No. of bricks in 1sq.m = Volume of brickwork/ Volume of one brick with mortar.
Area of a brick = Length of brick x Width of brick
Area of each Brick in square meter = L x W = 0.240 x 0.085 = 0.0204 sqm
No. of bricks in 1 sq.m = 1/0.0204 = 49.019 – 50nos
Consider the wastage percentage as 10% of bricks we will add 5 nos with the total
No. of bricks in 1sq.m = 50 + 5 = 55nos/sqm
No. of bricks with wastage per square meter = 55nos/m2
Thus, thumb rule formula:
How many bricks are in sqm?
No. of bricks in 4″ (half brick wall, single brick) wall per m2 = (Area in sqm × 55).
9″ brick wall or double layer
No. of bricks with wastage per square meter for 4” wall= 55nos/m2
How many bricks are in 1sqm?
No. of bricks with wastage per square meter for 9” wall= 55nos/m2 = 2 x 55 = 110nos (as the 9” twice the thickness of the 4” wall)
How to Use This Thumb Rule?
Let’s explain
Given data:
Size of the 4” brick wall = 3x3m
Area of the brick wall = 3×3 = 9sqm
No. of bricks in 4” wall per m2 = (Area in sqm × 55).
No. of bricks in 4″ wall of 9m2 = 9 x 55 = 495nos
Also read: Thumb rule – How many bricks are in 1m3?–
If you find
This information is helpful, please share it.
Thanks! For reading the article…
#renovation #bricklaying #builder #london #roofing #bricklayer #architecturephotography #interiordesign #stonemason #bricklove #landscaping #builders #brickarchitecture #brickhouse #bricktastic #blockwork #brickpersquaremeter #bricksquantitysurvey #quantitysurveyor #construction #civilengineer #engineer #quantitysurveying #quantitysurveyors #engineering #ukconstruction #indianengineer #israelconstruction #iraqconstruction #cnstrucaocivil #constructioninlondon #usaconstruction #engineertips #civilengineertips #civilengineersurvey #faq #indianconstruction #australiaconstruction #omanengineering #constructionworld #srilankaengineering #indiaclicks #chinaconstruction #omanconstruction #civilengineerinterviewquestion #enigneeringjobs #dailyupdates
Conclusion
Understanding thumb rule – how to calculate the number of bricks per square meter (m2) is a fundamental part of becoming a competent civil engineer. We have tried to cover every important aspect in this article so you can confidently apply this knowledge in real-world construction scenarios. Stay tuned to CivilNotess for more valuable content tailored for civil engineering professionals.
❓ Frequently Asked Questions (FAQ)
What is the standard size of a brick?
The standard size of a brick as per IS specifications is 190mm x 90mm x 90mm (with mortar) or 230mm x 115mm x 75mm (nominal size). The actual size may vary slightly depending on the region and manufacturer.
How many bricks are required per square meter of wall?
Approximately 55 to 60 bricks are needed per square meter for a half-brick wall (4.5 inches thick), and about 110 to 120 bricks for a full-brick wall (9 inches thick), including mortar joints.