🇸🇻 El Salvador · Reinforcement steel · Updated 2026
How much reinforcement steel do you need to build a house in El Salvador?
A 150 m² single-storey house in El Salvador needs roughly 1,420 kg of reinforcement steel — about 9.47 kg per m² of floor area. That is computed from El Salvador construction conventions, including the local wastage allowance.
Reinforcement steel quantities for a house in El Salvador, computed from how buildings are actually put up here rather than from a global average. The tables below run from a small 50 m² dwelling to a 400 m² family home, and the method section shows how to reproduce every figure by hand so you can adapt it to your own plan.
Reinforcement steel by house size in El Salvador
| Floor area | Reinforcement steel required | Per m² of floor |
|---|---|---|
| 50 m² | 527 kg | 10.5 |
| 75 m² | 756 kg | 10.1 |
| 100 m² | 980 kg | 9.80 |
| 150 m² | 1,420 kg | 9.47 |
| 200 m² | 1,854 kg | 9.27 |
| 250 m² | 2,284 kg | 9.14 |
| 300 m² | 2,711 kg | 9.04 |
| 400 m² | 3,559 kg | 8.90 |
Single-storey. The per-m² rate falls as the house grows — a small house has more wall and roof per square metre of floor than a large one, which is why these are computed size by size rather than scaled from a single rate.
What drives the quantity in El Salvador
| Factor | Local value | Effect |
|---|---|---|
| Slab reinforcement | 80 kg/m³ | Slabs are lightly reinforced by volume but there is a lot of slab. |
| Beam reinforcement | 130 kg/m³ | Beams carry bending, so steel density rises sharply. |
| Column reinforcement | 180 kg/m³ | The densest steel on the job — and the most expensive to get wrong. |
| Ring beam | 110 kg/m³ | Ties the walls together at wall-plate level; standard practice in loadbearing masonry. |
How to calculate it yourself
- 01
Take the concrete volume of each element type separately — slab, beam, column, ring beam.
- 02
Multiply each by its steel density in kg/m³ from the table above.
- 03
Add 5% for laps, and about 3% for cutting waste on bar schedules.
- 04
Convert to bar lengths only once an engineer has issued a bar bending schedule — these figures budget the steel, they do not design it.
Buying and site notes
- —These are planning densities, not a design. Reinforcement is the one material where a rule of thumb can put a building down; an engineer's schedule governs.
- —Steel prices move faster than any other construction material. A quantity fixed today is safe; a price fixed today is not.
- —Store clear of the ground and cover it. Loose surface rust is acceptable; pitting and flaking is not.
Get every material measured off your own plan
This page works from a representative footprint. Upload your dimensioned drawings and get the full schedule — every material, measured from your real geometry and priced in USD ($).
Take off my drawingsReinforcement steel in El Salvador — frequently asked
How much reinforcement steel does a house need in El Salvador?
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A 150 m² single-storey house in El Salvador needs roughly 1,420 kg of reinforcement steel — about 9.47 kg per m² of floor area. That is computed from El Salvador construction conventions, including the local wastage allowance.
How much reinforcement steel per square metre in El Salvador?
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About 9.47 kg per m² of floor area for a single-storey house. The figure is not linear across sizes — a small house has proportionally more wall and roof per m² of floor than a large one, which is why the table above is computed size by size rather than scaled from one rate.
What changes the quantity of reinforcement steel needed?
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Slab reinforcement (80 kg/m³) — Slabs are lightly reinforced by volume but there is a lot of slab. Beam reinforcement (130 kg/m³) — Beams carry bending, so steel density rises sharply. Column reinforcement (180 kg/m³) — The densest steel on the job — and the most expensive to get wrong.
Is wastage included?
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Where it applies, yes — a 5% allowance is carried on the perishable materials (walling units, tiles, paint). Bulk materials like sand and stone carry handling loss instead. Ordering the theoretical quantity with no allowance reliably means a second delivery at a worse price.
How accurate is this for my own house?
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It is a planning quantity derived from a representative rectangular footprint, so it is the right order of magnitude and internally consistent — good for budgeting and for checking a supplier's list. It is not a measured takeoff of your plan. Upload your dimensioned drawings to get quantities measured off your real geometry and priced in USD.
Are reinforcement steel prices included?
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No, deliberately. Material prices in El Salvador move week to week and vary by region, so a price printed on a static page would be wrong within a month. This page gives you the quantity — take that to two or three local suppliers and the price will be current and competitive.