Building Tolerances
Typical tolerances for floors, walls, columns and more.
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Typical building tolerances are indicated below:
Floors, Flatness
Measured over a 3 m long straight edge:
- Concrete, in situ : 5 mm
- Floor screed : 5 mm
Wall Vertical
- Brickwork : 10 mm
- Blockwork : 10 mm
- Concrete, in situ : 17 mm
- Concrete, precast : 11mm
Column Vertical
- Steel : 6 mm
- Timber : 10 mm
- Concrete, in situ : 12 mm
- Concrete, precast : 10 mm
Space between Walls
- Brickwork : 20 mm
- Blockwork : 21 mm
- Timber : 30 mm
- Concrete, in situ : 24 mm
- Concrete, precast : 18 mm
Space between Columns
- Steel : 12 mm
- Timber : 12 mm
- Concrete, in situ : 18 mm
- Concrete, precast : 13 mm
Beams, Vertical Position
- Steel : 20 mm
- Timber : 20 mm
- Concrete, in situ : 22 mm
- Concrete, precast : 23 mm
Floors, Vertical Position
- Concrete, in situ : 15 mm
- Concrete, precast : 15 mm
Plan Position
- Brickwork : 10 mm
- Steel : 10 mm
- Timber : 10 mm
- Concrete, in situ : 12 mm
- Concrete, precast : 10 mm
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