Introduction for construction students on setting out a building from setting out to checking for square

1. THE SITE IS CLEAREDTHE SITE IS CLEARED

2. MARKING OUT THE SITEMARKING OUT THE SITE
Once the topsoil has been
removed (and levels reduced if
necessary), the foundation can be
set-out by surveyors or engineers.
The graphic on the left shows the
foundation plan superimposed over
the site.
The line of the foundations
can be highlighted using
hydrated lime - here the
trench centre line is being
marked. On some sites
you will find both sides of
the trench marked. Digger
buckets are available in
various widths to suit
specific trenches.

3. ESTABLISH AND TRANSFER SITE DATUMESTABLISH AND TRANSFER SITE DATUM
Normally found on numerous
public buildings, usually incised
into walls.
Ordnance Survey
Bench Mark
(O.B.M.) (T.B.M)

4. TRANSFERRING LEVELSTRANSFERRING LEVELS
Always reverse straight edge and level
together

5. SETTING OUTSETTING OUT

6. CHECKING FOR SQUARECHECKING FOR SQUARE

8. POSITION PROFILESPOSITION PROFILES
Boning
Rods Datum
Temporary Bench Mark

9. POSITION CORNER PROFILESPOSITION CORNER PROFILES

10. CHECK THE DIAGONALSCHECK THE DIAGONALS

11. SETTING OUT WALLINGSETTING OUT WALLING

12. GAUGING THE BRICKWORKGAUGING THE BRICKWORK