Specialist cost update: Structures | Features

Sample of recent tender return costs
Pile type	Pile length (m)	Diameter (mm)	Pile cost (£)
Independent cast insitu reinforced concrete, bored	15	300	200–250
	15	350	275–300
	15	450	475–525
	20	350	375–425
	20	450	625–700
	30	750	1550-1750
	35	1000	7000–7500
Secant reinforced concrete wall, bored	20	800	1900–2100
	20	600	1750–2000
Precast concrete driven piles	15	340	210–330
	15	380	325–350
	15	430	475–500
Costs assume the placement of more than 100 piles
Costs exclude general preliminaries and main contractors’ preliminaries, overhead and profit and contingencies. Cost current at first quarter 2006.