This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
In comparing the cost of timber piles and concrete or reinforced-concrete piles, the former are found to be much cheaper per linear foot than the latter. As already stated, however, there are many cases where the economy of the concrete pile as compared with the wooden pile is worth considering. In general, the requirements of the work to be done should be carefully noted before the type of pile is selected.
The cost of wooden piles varies, depending on the size and length of the piles, and on the section of the country in which the piles can be bought. Usually piles can be bought of lumber dealers at 10 to 20 cents per linear foot for all ordinary lengths; but very long piles will cost more. The cost of driving piles is variable, ranging from 2 or 3 cents to 12 or 15 cents per linear foot. A great many piles have been driven for which the contract price ranged from 20 cents to 30 cents per linear foot of pile driven. The length of the pile driven is the full length of the pile left in the work after cutting off the pile at the desired level of the cap.
The contract price for concrete piles, about 16 inches in diameter and 25 to 30 feet long, is approximately $1.00 per linear foot. When a price of $1.00 per linear foot is given for a pile of this size and length, the price will generally be somewhat reduced for a longer pile of the same diameter. Concrete piles have been driven for 70 cents per linear foot, and perhaps less; and again, they have cost much more than the approximate price of $1.00 per linear foot.