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Bill of Quantities9 items · CPWD DSR Vol 1 (2023)
| # | Code | Description | Unit | Qty | Rate (₹) | Amount (₹) |
|---|---|---|---|---|---|---|
| 1 | 2.8.1 | ExcavationEarth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. — All kinds of soil. | Cum | 51.30 | 260.30 | 13,353.39 |
| 2 | 4.1.8 | Pcc BedProviding and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : — 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources) | Cum | 5.10 | 6,812.00 | 34,741.20 |
| 3 | 5.1.2 | Rcc BaseProviding and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : — 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources) | Cum | 16.80 | 9,045.75 | 1,51,968.60 |
| 4 | 5.2.2 | Rcc StemReinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : — 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources) | Cum | 15.30 | 10,852.95 | 1,66,050.14 |
| 5 | 5.9.1 | Shutter BaseCentering and shuttering including strutting, propping etc. and removal of form for — Foundations, footings, bases of columns, etc. for mass concrete | Sqm | 48.00 | 392.15 | 18,823.20 |
| 6 | 5.9.2 | Shutter StemCentering and shuttering including strutting, propping etc. and removal of form for — Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc. | Sqm | 120.00 | 842.50 | 1,01,100.00 |
| 7 | 5.22.6 | SteelSteel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more. | Kg | 4,815.00 | 107.85 | 5,19,297.75 |
| 8 | 6.6 | Weep HolesExtra for forming cavity 5 cm to 11.5 cm wide in cavity walls with necessary weep and vent holes including use of cores and cost of providing and fixing bitumastic coated M .S. ties 300 mm long of 25x3 mm section at not less than 3 ties per sqm as per approved design. | Sqm | 0.65 | 234.20 | 152.23 |
| 9 | 2.25 | BackfillFilling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 and for all lift. | Cum | 126.00 | 196.00 | 24,696.00 |
| Your inputsWall length 20 m · Stem height 3 m · Stem thk 300 mm · Base slab length 2.4 m · Base slab thk 350 mm · Base top depth 0.5 m · Weep holes | TOTAL | ₹10,30,183 | ||||
12.8.1₹13,353
Excavation
Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. — All kinds of soil.
24.1.8₹34,741
Pcc Bed
Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : — 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)
35.1.2₹1,51,969
Rcc Base
Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : — 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)
45.2.2₹1,66,050
Rcc Stem
Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement : — 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)
55.9.1₹18,823
Shutter Base
Centering and shuttering including strutting, propping etc. and removal of form for — Foundations, footings, bases of columns, etc. for mass concrete
65.9.2₹1,01,100
Shutter Stem
Centering and shuttering including strutting, propping etc. and removal of form for — Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.
75.22.6₹5,19,298
Steel
Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. — Thermo-Mechanically Treated bars of grade Fe-500D or more.
86.6₹152
Weep Holes
Extra for forming cavity 5 cm to 11.5 cm wide in cavity walls with necessary weep and vent holes including use of cores and cost of providing and fixing bitumastic coated M .S. ties 300 mm long of 25x3 mm section at not less than 3 ties per sqm as per approved design.
92.25₹24,696
Backfill
Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 and for all lift.
Wall length 20 m · Stem height 3 m · Stem thk 300 mm · Base slab length 2.4 m · Base slab thk 350 mm · Base top depth 0.5 m · Weep holes
Estimated total
₹10,30,183
Notes & assumptions
- RCC grade defaults to M20 (1:1.5:3, DSR 5.1.2 / 5.2.2). For walls > 4 m height or in zones IV-V seismic, swap to M25 (DSR 4.20.1.4) manually.
- Steel quantity uses 150 kg/m³ — typical for cantilever walls (high reinforcement ratio due to flexural design). For walls > 4 m, push to 180-200 kg/m³ in BOQ override.
- Heel + Toe split: typical IS 14458 sizing puts heel = 0.5×base_length, toe = 0.25×base_length, stem occupies the middle 0.25. Adjust base_l_m if your design requires different proportions.
- Weep holes: 75 mm dia PVC pipes through stem at 1.5 m c/c horizontal + 1.5 m c/c vertical. Filter cloth on backfill side prevents soil ingress.
- Granular backfill (compacted gravel-sand mix behind stem) is more durable than excavated earth fill — increases cost ~15%. Set backfill code to a granular sub-base (e.g., DSR 16.79) manually if specified.
- Excludes: friction key / shear key at base slab heel (only for sliding-stability design check); strip-drain pipes at base (collect water from weep holes); coping on top of stem (small concrete fillet, ~₹500/m); painting / external finish on exposed face; railings on top (if pedestrian access).
**Cantilever retaining walls** are the dominant retaining-wall type in Indian civil engineering — used wherever a soil cut needs vertical retention from 1.5 m to 6 m height. NH / SH slope cuts, hill-station road embankments, multi-storey-basement perimeter walls, plot levelling on sloping ground, sports-ground level changes. The IS 14458 + IS 456 standard configuration: RCC vertical stem + RCC base slab (heel + stem + toe) + drainage backfill + weep holes. This BOQ Builder generates the complete cost per CPWD DSR 2023 for any height + length combination.
Cantilever retaining wall geometry per IS 14458
**Stem height H** = retained earth height above base slab top. **Base slab length** typically = 0.6H to 0.8H — i.e., for a 3 m stem, base slab is 1.8-2.4 m long. **Heel + toe** proportions: in plain soil with normal surcharge, heel = 0.5×base, stem = 0.25×base, toe = 0.25×base. For high surcharge / sloping backfill, heel grows to 0.6-0.7×base. **Stem thickness**: top 200-250 mm, bottom 300-400 mm (tapered upward to save concrete). **Base slab thickness** = H/12 to H/10 — i.e., 350-400 mm for a 3 m wall. **Foundation depth below NGL** = 0.5-1.0 m for normal soils; deeper in expansive / black-cotton soil or where SBC < 100 kN/m².
Why cantilever (vs gravity, gabion, RE wall)
Cantilever is the most efficient retaining-wall type for 1.5-6 m heights in normal soil. Below 1.5 m, a brick or mass-concrete gravity wall is cheaper. Above 6 m, a counterfort retaining wall (with vertical buttresses) or a Reinforced Earth (RE) wall becomes more economical. Special cases: (a) **Gabion wall** for hilly terrain with stone availability + no concrete access — flexible, drains naturally, no curing needed; (b) **RE wall** for highway embankments with very high retained height (6-15 m) + machine-laid construction; (c) **Gravity wall** (mass concrete or stone) for short walls < 2 m with abundant local stone. For the bread-and-butter Indian civil retaining wall (1.5-6 m + soil retention + paved area / road on top), cantilever is the right answer.
Frequently asked questions
**Geometry per IS 14458 + IS 456**: for stem height H = 3 m → base slab length = 1.8-2.4 m, base thickness = 300-400 mm, stem bottom thickness = 300 mm tapered to 200 mm at top. For H = 5 m → base = 3.5-4 m, base thickness = 450-500 mm, stem 400 mm tapered to 250 mm. Foundation depth below NGL = 0.5 m for stable soils, 0.75-1.0 m for expansive or filled soils. The Builder defaults to H = 3 m × 2.4 m base — typical industrial-plot retaining wall configuration.
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Disclaimer: Rates sourced from CPWD DSR Vol 1 (2023). Indicative for estimation only — actual tender quotations are governed by market forces, locality factors and current input prices. Quantities follow IS 1200 measurement. Always verify with a local quote before finalising. © InfraLens — infralens.in