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Indian Brick Standard Size and Dimension

If bricks are heavy then it is very tough to burn them properly. They become very tough to place with a single hand. On the other hand, if bricks are small, more mortar quantity is required. Hence, a standard dimension determines for various brickworks.

Brick Size

The actual Size of Brick/Nominal Size of a Brick:

The brick dimension without mortar thickness is the actual size of modular brick. That is 190mm× 90mm× 90mm.

Nominal size is the actual size plus the mortar joint width. We are taking mortar thickness 10mm, so nominal size of modular brick is 190mm× 90mm× 90mm. Most bricks manufacture that the nominal sizes fit into a grid of 4 inches, which comply with the modules of other building materials such as doors, windows, and wood components.

Standard & Nominal Brick Size in India

There are two sizes of brick used in India standard brick and nominal brick size. BIS recommendation of the Standard brick size is 190 mm x 90 mm x 90 mm. The brick dimension with mortar thickness becomes 200 mm x 100 mm x 100 mm, which is also known as the nominal size of the modular brick.

Modular brick means brick along with cement mortar joints, standard modular brick size is 200mm ×100mm ×100 mm, the Volume of one Standard modular brick is 0.2m×0.1m×0.1m =0.002m3. That means the Volume is 0.002m3 for one Standard modular brick.

Conventional/Traditional Brick Size

Conventional size of brick specification determined as Length × breadth × height. The length is 20-25 cm, width varies is 10-13 cm, thickness is 5-7.5 cm. Traditional/ conventional brick nominal size is 23 cm x 11.4 cm x 7.6 cm.

Conventional/Traditional Size of Brick in Inches

conventional size of brick specification (Length × breadth × height), the length varies from 8″ -10″ width varies from 4″ to 5″ and thickness varies from 2-3″. The universally adopted nominal size conventional/ traditional brick is 9”x4 ½ “x3” approximately.

Conventional/ traditional size of brick in mm.

Conventional/Traditional Size of Brick in mm

Conventional size of brick specification (Length × breadth × height), the length varies from 200 to 250 mm, width varies 100 to 130 mm, thickness varies from 50- 75 mm. 230 mm x 114 mm x 76 mm is the nominal size of conventional or traditional brick.

The Brick Standard Size of India is two types

1. Modular Brick
2. Non-modular Brick.

The Standard modular size of building brick specification (length × breadth × height) used in India shall be 190mm × 90mm × 90mm and 190mm × 90mm × 40mm.Non-modular size of bricks is 230mm × 110mm × 70mm & 230mm × 110mm × 30mm.

Brick shall be hand molded or machine molded and shall make from suitable soil. It will free from cracks, flaws-dust, and nodules of free lime.

The Standard brick size is hand molded or machine molded should have length 190mm, breadth 90mm and depth 90 mm.

Standard brick size are following:

1) modular brick size (l × b × h) – 19cm × 9cm × 9cm and 19cm × 9cm × 4cm

2) Non–modular brick size is 23cm × 11cm × 7cm & 23cm × 11cm × 3cm.

The brick Standard size in mm are following:- 1) modular brick size (l × b × h) – 190mm × 90mm × 90mm and 190mm × 90mm × 40mm and 2) non – modular size of bricks like 230mm × 110mm × 70mm & 230mm × 110mm × 30mm may also be used.

The brick standard size in inches is following:

1) Modular brick size (l × b × h) – 7.5″ × 3.5″ × 3.5″ and 7.5″ × 3.5″ × 1.5″
2) Non – modular brick size is 9″ × 4.3″ × 2.75″ & 9″ × 4.3″ × 1.18″.

The modular brick standard size is following:

1) 190mm × 90mm × 90mm. 90mm height brick provided with 10mm to 20mm.
2) 190mm × 90mm × 40mm

The brick Nominal size – We add a brick joint or cement mortar thickness in the brick-actual size. That is the brick-nominal size. Nominal size of brick = Actual size of brick + thickness of cement mortar, the actual size of modular brick is 190mm × 90mm × 90mm, when we add 10mm thickness in which dimension we get the nominal size of brick in mm as 200mm × 100mm × 100mm, in cm as 20cm × 10cm × 10cm and in inches as 9″ × 4″ × 4″.

The common burnt clay bricks shall be judged on the average compressive strength basis into their different designation of class like 35, 30, 25, 20, 17.5, 15, 12.5, 10, 7.5, 5 and 3.5 with compressive strength are 35 N/mm2, 30 N/mm2, 25 N/mm2, 20 N/mm2, 17.5 N/mm2, 15 N/mm2, 12.5 N/mm2, 10 N/mm2, 7.5 N/mm2, 5 N/mm2 and 3.5 N/mm2 respectively.

Standard Brick Size and Weight

The weight of the standard size of brick is kept between 3- 3.5 kg in India, depending upon the class of brick, so that a mason can lift it with one hand and work a full day. The breadth has to range between 4 to 5 inches. Mason can hold the brick using his fingers and thumb.

Popular size of Brick used in India

  • Modular Brick: nominal size 20 x 10 x 10 cm is common in MP and only in some other places where machine-made bricks are available.
  • English size: The English size of brick is 23 x 11.5 x 7.5 cm or 9″ x 4.5″ x 3″. It is the most popular size available in most parts of India.
  • Bengal size: The Bengal size of brick is 25 x 12.5 x 7.5 cm size or 10″ x 5″ x 3″ is popular in West Bengal and some parts adjoining West Bengal and North East.

The weight of the brick should not be more than 3 Kg so that a mason can lift it with one hand and work a full day. The breadth has to range between 4 to 5 inches. Mason can hold the brick using his fingers and thumb.

The ratios of length: breadth: Thickness chooses that the bricks laid in masonry make a pattern (or Bond) so that vertical joints do not come one above the other in alternate courses.

Indian Brick Standard Size and Dimension