Septic Tank Cost to Install | Estimation of Septic Tank for House2 min read

Septic Tank Cost to Install:

Before we go to the construction cost of the septic tank I assume that this septic tank is designed for Capacity – 6 to 8 users ( generally normal house ).

Let Cleaning Period – 50years.

Always Remember Things About Septic Tank:
i). The Minimum Lenght of the Septic Tank should not be less than 9 feet.
ii). There are always 3 chambers partitioned in a septic tank.
ii). An manhole must be provided in each chamber and manhole diameter should not be less than 2 feet for maintenance and repair work.

Total Estimation of Septic Tank:

1). Excavation:

– Length(L) x Width(W) x Height(H)

Always Consider OFFsets for excavation

– 10’6″(l) x 7’6”(W) x 6’6”(H) = 511.87 or 512Cft.

Generally, the Rate of excavation is Rs.10 to 12/-Cft.

So, Amount of Excavation = 512 X 12 = Rs.6144/-

2). PCC:

– Length(L) x Width(W) x Thickness(T)

Consider the minimum thickness of Pcc 100mm.

– 10’6″(1) x 7’6″(W) x 4″(t) = 26.24Cft.

Generally, the Rate of Pcc is Rs.105 to 110/-Cft.

So, Amount of PCC = 26.24 x 110 = Rs.2,886.4/-

3). (A) Brickwork:

For 9″ outer wall Along the length

= (9’6″) x (6′) x (2) =              114 sqft.
(L)      (H)  (No.of walls)

Generally, the Rate of 9″ brickwork without plastering is Rs.108 to 135/-sqft.

So, Amount of 9″ brickwork = 114 X 130 = Rs.14,820/-

3). (B) Brickwork:

For 9″ outer wall Along Width

= (6’6″) x (6′) x (2) = 78sqft.

Generally, the Rate of 9″ brickwork without plastering is Rs.108 to 135/-sqft.

So, Amount of 9″ brickwork = 78 x 130 = Rs.10,140/-

3). (C) Brickwork:

For 4″ inside partition wall
=
= (4’6″) x (6′) x (2) = 54sqft.

Generally, the Rate of 4″ brickwork without plastering is Rs.65 to 85/-sqft.

So, Amount of 4″ brickwork = 54 X 80 = Rs.4,320/-

4). (A) Plastering:

1st wall Plaster Along the length

= (9’6″) x (6′) x (2) = 114 sqft.

Generally, the Rate of Plaster with labour & materials is Rs.25 to 40/-sqft.

So, Amount of Plastering = 114 X 40 = Rs.4,560/-

4). (B) Plastering:

2nd wall Plaster Along the width

= (6’6”) x (6′) x (2) = 78sqft.

Generally, the Rate of Plaster with labour & materials is Rs.25 to 40/-sqft.

So, Amount of Plastering = 78 x 40 = Rs.3,120/-

5). Partition Walls:

For 4″ inside partition wall

= (4’6″) x (6′) x (4) 110sqft.

Generally, the Rate of Plaster with labour & materials is Rs.25 to 40/-sqft.

So, Amount of Plastering = 110 X 40 = Rs.4,400/-

Slab Size same as Septic Tank

(9’6″) x (6’6″) = 61.75Sqft

Generally Rate of Rcc Slab with labourer, shuttering & Materials are Rs.180 to 200/-sqft.

So, Amount of RCC Slab = 61.75 X 200 = Rs.12,350/-

Total Septic Tank Cost to Install:

Excavation Cost + PCC Cost + Brickwork Cost + Plastering Cost

6,144 + 2,886.4 + (14,820 + 10,140 + 4,320) + (4,560 + 3,120 + 4,400) + 12,350 = Rs62,741/-