🇻🇨 Saint Vincent and the Grenadines · Plaster & render · Updated 2026
How much plaster and render do you need to build a house in Saint Vincent and the Grenadines?
A 150 m² single-storey house in Saint Vincent and the Grenadines needs roughly 472 m² of plaster and render — about 3.15 m² per m² of floor area. That is computed from Saint Vincent and the Grenadines construction conventions, including the local wastage allowance.
Plaster & render quantities for a house in Saint Vincent and the Grenadines, 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.
Plaster & render by house size in Saint Vincent and the Grenadines
| Floor area | Plaster & render required | Per m² of floor |
|---|---|---|
| 50 m² | 272 m² | 5.44 |
| 75 m² | 334 m² | 4.45 |
| 100 m² | 385 m² | 3.85 |
| 150 m² | 472 m² | 3.15 |
| 200 m² | 545 m² | 2.73 |
| 250 m² | 609 m² | 2.44 |
| 300 m² | 667 m² | 2.22 |
| 400 m² | 770 m² | 1.93 |
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.
Where it goes — 150 m² house
Plaster / render area External face plus both faces of internal walls | 471.8 m² |
Cement — plaster 15 mm external, 12 mm internal, 1:5 | 38 bags (50 kg) |
What drives the quantity in Saint Vincent and the Grenadines
| Factor | Local value | Effect |
|---|---|---|
| External render thickness | 15 mm | Thicker externally to shed weather and cover blockwork tolerance. |
| Internal plaster thickness | 12 mm | Thin skim over a true wall. Every extra millimetre across a house is a real cement cost. |
| Mix | 1:5 | Richer mixes are stronger but crack more; this is the local convention for a reason. |
| Area rule | External face + both internal faces | Internal walls are plastered twice — the plaster area is far larger than the wall area. |
How to calculate it yourself
- 01
Measure external wall face once and internal wall faces twice; add ceilings if they are plastered rather than boarded.
- 02
Multiply each area by its thickness — 0.015 m external, 0.012 m internal — to get wet volume.
- 03
Apply the dry factor of 1.33 and split by the 1:5 mix.
- 04
Add 10% — plaster wastage is high because material falls off the wall and off the board.
Buying and site notes
- —A well-laid wall needs less plaster. Money spent on masonry accuracy comes back in plaster and paint.
- —Do not plaster onto a dry, dusty substrate. Wet the wall down first or the plaster loses its water to the block and fails to bond.
- —Cure external render like concrete — keep it damp for several days, especially in hot weather.
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 XCD ($).
Take off my drawingsPlaster & render in Saint Vincent and the Grenadines — frequently asked
How much plaster and render does a house need in Saint Vincent and the Grenadines?
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A 150 m² single-storey house in Saint Vincent and the Grenadines needs roughly 472 m² of plaster and render — about 3.15 m² per m² of floor area. That is computed from Saint Vincent and the Grenadines construction conventions, including the local wastage allowance.
How much plaster and render per square metre in Saint Vincent and the Grenadines?
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About 3.15 m² 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 plaster and render needed?
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External render thickness (15 mm) — Thicker externally to shed weather and cover blockwork tolerance. Internal plaster thickness (12 mm) — Thin skim over a true wall. Every extra millimetre across a house is a real cement cost. Mix (1:5) — Richer mixes are stronger but crack more; this is the local convention for a reason.
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 XCD.
Are plaster and render prices included?
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No, deliberately. Material prices in Saint Vincent and the Grenadines 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.