Rib-and-block (hollow pot) suspended slab 225mm incl. topping & rib rebar (excl. propping): cost per m² in Nigeria
Net unit rate in Abuja, excluding overheads, profit and VAT
₦38,670per m²
Tender rate about ₦51,615 per m² with overheads, contingency, profit and VAT.
Price a BoQ with this rateAs at 15 October 2026, the net unit rate for rib-and-block (hollow pot) suspended slab 225mm incl. topping & rib rebar (excl. propping) is ₦38,670 per m² in Abuja: ₦34,739 materials, ₦3,562 labour and ₦370 plant. With overheads (7.5%), contingency (5%), profit (10%) and VAT (7.5%) the tender rate is about ₦51,615 per m².
Rate build-up (Abuja, Oct 2026)
| Resource type | Resource | Quantity per unit | Waste | Rate | Cost |
|---|---|---|---|---|---|
| Material | Hollow pot for rib-and-block slab, 225mm | 8 unit | 5% | ₦1,300 | ₦10,920 |
| Material | OPC 42.5 cement, 50kg bag - adopted market average | 0.55 bag | 3% | ₦12,000 | ₦6,798 |
| Material | Sharp sand, per tonne | 0.06 tonne | 8% | ₦6,500 | ₦421 |
| Material | Granite 3/4", per tonne | 0.11 tonne | 5% | ₦18,000 | ₦2,079 |
| Material | High-yield rebar 12-16mm, per tonne | 0.009 tonne | 5% | ₦1,050,000 | ₦9,922 |
| Material | BRC mesh A142, per m2 | 1.1 m² | 10% | ₦3,800 | ₦4,598 |
| Plant (days) | Concrete mixer, 1-bag (petrol) | 0.0085 day | - | ₦43,546 | ₦370 |
| Labour (hours) | Mason / bricklayer | 0.5 h | - | ₦2,456 | ₦1,228 |
| Labour (hours) | Iron bender / steel fixer | 0.25 h | - | ₦2,456 | ₦614 |
| Labour (hours) | Unskilled labourer | 1.5 h | - | ₦1,146 | ₦1,719 |
| Materials | ₦34,739 | ||||
| Labour | ₦3,562 | ||||
| Plant | ₦370 | ||||
| Net unit rate per m² | ₦38,670 |
Rate by location
Materials, labour and plant are adjusted separately with Buildocrat's location factors.
| Location | Net rate per m² | Tender rate incl. OH&P and VAT |
|---|---|---|
| Abuja (FCT) | ₦38,670 | ₦51,615 |
| Lagos | ₦41,058 | ₦54,802 |
| Port Harcourt | ₦41,301 | ₦55,126 |
| Ibadan | ₦36,203 | ₦48,321 |
| Osogbo (Osun) | ₦36,379 | ₦48,557 |
| Kano | ₦35,330 | ₦47,156 |
| Kaduna | ₦35,784 | ₦47,763 |
| Enugu | ₦37,256 | ₦49,727 |
| Benin City | ₦37,682 | ₦50,296 |
| Uyo | ₦39,189 | ₦52,308 |
| Jos | ₦36,139 | ₦48,236 |
| Riverine / creek site | ₦49,596 | ₦66,198 |
Related concrete rates
- B01 Plain concrete 1:3:6 in blinding (site-mixed)₦98,716 per m³
- B02 Reinforced concrete 1:2:4 in foundations / bases / ground beams₦127,723 per m³
- B03 Reinforced concrete 1:2:4 in suspended slabs, beams & columns₦135,819 per m³
- B04 Reinforced concrete 1:1.5:3 (~C25) in suspended slabs & beams₦155,521 per m³
- B05 Ready-mix C25/30 placed by pump in suspended slab₦181,224 per m³
- B15 Ready-mix C30/37 placed by pump in columns & walls₦198,104 per m³
- B18 Ready-mix C35/45 placed by boom pump in raft/transfer slab₦204,739 per m³
- B06 High-yield reinforcement 12-16mm, cut, bent & fixed₦1,208,315 per tonne
- B11 High-yield reinforcement 20-25mm, cut, bent & fixed₦1,202,012 per tonne
- B12 Reinforcement 8-10mm links/stirrups, cut, bent & fixed₦1,306,845 per tonne
- B10 BRC mesh A142 in ground slab incl. laps₦5,113 per m²
- B07 Formwork (plank) to sides of foundations & ground beams₦7,457 per m²
- B08 Formwork (marine board) to soffit of suspended slab incl. propping n.e. 3.5m₦11,395 per m²
- B09 Formwork (marine board) to columns and beams₦11,003 per m²
- B13 Formwork (marine board) to walls₦10,639 per m²
- B14 Formwork to staircase soffits, strings & risers₦16,935 per m²
- B19 Formwork to slab using steel props (props hired)₦10,545 per m²
- B16 Power-floated finish to concrete slab₦377 per m²
Frequently asked questions
How much does rib-and-block (hollow pot) suspended slab 225mm incl. topping & rib rebar (excl. propping) cost per m² in Nigeria?
About ₦38,670 per m² net in Abuja as at 15 October 2026, or about ₦51,615 per m² as a tender rate including overheads, contingency, profit and VAT (Buildocrat Nigeria Construction Rate Book).
What is the rate in Lagos?
Applying Buildocrat's Lagos location factors, the net rate is about ₦41,058 per m² and the tender rate about ₦54,802 per m².
What does the rate include?
Materials (BRC mesh A142, Granite 3/4", High-yield rebar 12-16mm, Hollow pot for rib-and-block slab, OPC 42.5 cement, Sharp sand) with waste allowances; labour (Iron bender / steel fixer, Mason / bricklayer, Unskilled labourer) at all-in rates including feeding, transport, idle time and statutory costs; and plant (Concrete mixer, 1-bag (petrol)) including fuel and operator. Overheads, profit and VAT are excluded from the net rate.
How to cite: Buildocrat, Nigeria Construction Rate Book, https://rates.buildocrat.store/rates/b20-rib-and-block-hollow-pot-suspended-slab-225mm-incl-toppi/, prices as at 15 October 2026.