🇸🇮 Slovenia · Elemental cost breakdown · Work section
Internal & external finishes in a Slovenia bill of quantities
In Slovenia, the finishes section of a Bill of Quantities (BoQ) is measured to Elemental cost breakdown (European practice). It covers 6 principal groups of work — plaster and render to walls, internal and external through to painting and decorating, including preparation — and is headed in the bill as "ELEMENT 3 — INTERNAL & EXTERNAL FINISHES".
Internal & external finishes is one of the sections every Bill of Quantities (BoQ) in Slovenia is built from. This page sets out what belongs in it, the unit each item is measured in under Elemental cost breakdown (European practice), the local conventions that change the quantities here, and a worked example for a 150 m² house — plus the errors in this section that actually cost money on site.
What this section covers
- Plaster and render to walls, internal and external
- Floor screeds and levelling
- Floor finishes — tiling, timber, vinyl, sealed concrete
- Wall tiling to wet areas
- Ceiling finishes and cornices
- Painting and decorating, including preparation
How each item is measured
| Item | Unit | Measurement rule |
|---|---|---|
| Plaster / render | m² | Measured on the net surface covered, stating thickness and mix. Internal walls are measured on both faces. |
| Screed | m² | Net floor area, stating thickness and mix. |
| Floor tiling | m² | Net area laid. Cutting and waste are deemed included in the rate, which is why the rate not the quantity carries the wastage. |
| Skirting | m | Measured on the room perimeter, less door openings. |
| Painting | m² | Net area painted, stating the number of coats and the substrate. |
Local conventions in Slovenia
- —Plaster here is conventionally 15 mm externally and 12 mm internally, mixed 1:5.
- —Screed is taken at 40 mm, mixed 1:4.
- —A wastage allowance of about 5% applies to tiles and paint locally.
Worked example — 150 m² house in Slovenia
Quantities for this section on a representative single-storey house, computed from Slovenia construction conventions. Rates are deliberately not shown: they move constantly and are priced against your own drawings.
| Description | Qty | Unit |
|---|---|---|
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) |
Floor screed cement 40 mm screed at 1:4 | 46 | bags (50 kg) |
Floor tiles / finish Floor area × 1.05 wastage | 157.5 | m² |
Paint Two coats at 10 m² per litre per coat | 94 | litres |
What goes wrong in this section
- —Finishes is where specification, not quantity, drives cost. The same 150 m² of floor can vary threefold between a sealed screed and imported stone — always state the specification in the item, not just the area.
- —Internal wall plaster is measured on both faces. Measuring it once halves the section.
- —Preparation is most of the painting cost on new plaster. A rate for 'two coats emulsion' with no preparation item is an argument waiting to happen.
Get every section measured, not just this one
Upload your dimensioned drawings and get a complete bill of quantities (boq) in the Elemental cost breakdown format, priced in EUR (€), with every rate source-cited.
Generate my Slovenia BoQInternal & external finishes — frequently asked
What goes into the finishes section of a bill of quantities in Slovenia?
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Plaster and render to walls, internal and external; Floor screeds and levelling; Floor finishes — tiling, timber, vinyl, sealed concrete; Wall tiling to wet areas; and 2 further groups of work. Under Elemental cost breakdown each is described, measured in its own unit, and priced separately so the total is auditable line by line.
What units is internal & external finishes measured in?
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Plaster / render in m², Screed in m², Floor tiling in m², Skirting in m. Getting the unit right matters more than getting the quantity precisely right — a contractor can adjust a quantity, but cannot price an item measured in the wrong unit at all.
How is internal & external finishes different in Slovenia from elsewhere?
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Plaster here is conventionally 15 mm externally and 12 mm internally, mixed 1:5.
What is the most common costly mistake in this section?
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Finishes is where specification, not quantity, drives cost. The same 150 m² of floor can vary threefold between a sealed screed and imported stone — always state the specification in the item, not just the area.
How do I get this section measured for my own project?
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Upload your dimensioned drawings to Enormous Buildings. The bill is produced in the Elemental cost breakdown format, grouped by section with internal & external finishes priced in EUR (€), and every unit rate carries a source so a Slovenia quantity surveyor can check it.