Formwork
Economical marine-plywood formwork to suspended slab soffit
Suspended slab formwork with reusable 18 mm plywood, 2x2/2x3 framing, 2x6 secondary bearers, Peri/H20 primary beams, nails, release agent and erection/striking labour.
Methodology
Suspended slab formwork with reusable 18 mm plywood, timber framing, H20/Peri support and explicit Acrow-prop rental. The prop quantity currently uses a published 175mm slab / 3.0m-height schedule as a working benchmark and must be redesigned for the actual slab.
Source basis
FMC reuse methodology + residential/KMSTEEL timber take-offs + current Abuja Peri/timber working observations. Sep 2026 Abuja audit checked plywood, timber, H20/Peri and labour market references; structural/shuttering quantities remain to be validated against a formwork layout. User-approved V2 rule: economical/cheap marine board = 3 casting cycles.
Quantity basis
See exactly what makes up the rate
The rate is analysed for 1 m² of work. Enter the quantity you actually want to execute and every material, labour and plant quantity below will scale without changing the public Charismak reference rate.
What you need to buy
Material quantities
Quantities shown are for one unit of the measured work. The right-hand quantity scales automatically to the work quantity you enter.
| Resource | Type | Qty / 1 m² | Resource unit | Qty / 1 m² | Unit price | Cost / m² |
|---|---|---|---|---|---|---|
| 18 mm economical marine plywood facing — 3 casting cycles4×8 sheet = 2.9768m²; charged over 3 casting cycles. Abuja construction-board working reference ₦27,500/sheet; editable. | Material | 0.112 | sheet | 0.112 | ₦27,500 | ₦3,079 |
| 2x3 joists / runners | Material | 0.3 | length | 0.3 | ₦1,300 | ₦390 |
| 2x2 noggins / bracing | Material | 0.25 | length | 0.25 | ₦1,000 | ₦250 |
| 2x6 secondary bearers | Material | 0.25 | length | 0.25 | ₦2,500 | ₦625 |
| Peri / Doka H20 primary beam allocationSep 2026 Abuja H20 working purchase reference: ₦16,900; allocation/reuse remains under validation. | Material | 0.08 | No. | 0.08 | ₦16,900 | ₦1,352 |
| 2–3 inch nails | Consumable | 0.01 | bag | 0.01 | ₦27,000 | ₦270 |
| Release agent / tie sundries | Consumable | 1 | m² | 1 | ₦250 | ₦250 |
Workmanship
Labour build-up
Labour is shown as the crew, trade, gang-day, day or piecework quantity used to produce one unit of the measured work.
| Resource | Type | Qty / 1 m² | Resource unit | Qty / 1 m² | Unit price | Cost / m² |
|---|---|---|---|---|---|---|
| Formwork carpenter | Labour | 0.22 | day | 0.22 | ₦15,000 | ₦3,300 |
| Carpenter helper / labourer | Labour | 0.22 | day | 0.22 | ₦8,000 | ₦1,760 |
Equipment and movement
Plant & logistics
Plant, hire, fuel, support equipment and logistics are kept separate so they are not hidden inside the material or labour rate.
| Resource | Type | Qty / 1 m² | Resource unit | Qty / 1 m² | Unit price | Cost / m² |
|---|---|---|---|---|---|---|
| Acrow prop rental allocation — 21-day working cycleWorking basis: 487 props / 350m² = 1.391 props/m²; × 21 days. Current Abuja rental reference ₦200/prop/day, excluding delivery/VAT. Edit to suit slab design and cycle. | Plant | 29.22 | prop-day | 29.22 | ₦200 | ₦5,844 |
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