Since quantity of bricks depends upon *Size of bricks, Thickness of wall & Thickness of mortar*, I’m considering 2 cases with 2 different dimensions of bricks and for 4.5″ & 9″ thick wall.

### CASE 1:

Assumptions:-

**Size of brick= 8”x4”x4”**

Thickness of mortar = 0.4″

Thickness of wall = 9”

*No. of bricks = Volume of brickwork/ volume of 1 brick with mortar*

Volume of 1 Brick with mortar = 8.4”x4.4”x4.4” =162.624 inch^3.

*Volume of brickwork = Thickness of wall x Area of brickwork*

Volume of brickwork = 9”x 144”=1296 inch^3 (∵1sq.ft=144”)

∴ No. of bricks in 1 sq.ft = 1296/162.624 = 7.969 ≊ 8 No’s (without wastage)

**Bricks required for 10 sq.ft = 79.69 (say 80 numbers) (without wastage)**

Consider the wastage percentage as 10 %

Then,

No. of bricks** with wastage = 88 No’s**

If, **THICKNESS OF WALL = 4.5” (Partition wall)**

Then,

No. of bricks** without wastage = 40 No’s**

No. of bricks** with wastage = 44 No’s **

### CASE 2:

Assumptions:-

**Size of brick —>9”x4.5”x3”**

Thickness of mortar = 0.4 “

Thickness of wall = 9”

**No. of bricks = Volume of brickwork/ volume of 1 brick with mortar**

Volume of 1 Brick with mortar = 9.4”x4.9”x3.4” = 156.604 inch^3.

Volume of brickwork = 9”x 144”=1296 inch^3 (∵1sq.ft=144”)

∴ No. of bricks in 1sq.ft = 1296/156.604 = 8.27 ≊ 8.3 No’s (without wastage)

**Bricks required for 10 sq.ft = 82.7 (say 83 numbers) (without wastage)**

Consider the wastage percentage as 10 %

Then,

**No. of bricks with wastage = 91.3 No’s**

If, THICKNESS OF WALL = 4.5”

Then,

No. of bricks** without wastage = 41.4 No’s **

No. of bricks** with wastage= 46 No’s **

**Watch the video given in the link below, for better understanding and detailed explanation**