Monotube Here

January 01, 1970

Monotube cold-processed steel piles were originally conceived in the early 1920s and were part of a product line fabricated by an early tubular steel specialty manufacturer. The Monotube Pile Operation was separately reorganized in 1984, and the Monotube Pile Corp. was founded.

Today the company is solely dedicated to manufacturing Monotube piles for exclusive use in the deep foundations industry. With renewed commitment, every Monotube professional is focused on the advancement of foundation engineering, and through this dedication you are ensured of state-of-the-art technical support and timely service.

Spanning eight decades of successful Monotube installations, a wealth of design, test and installation data has been accumulated. This data not only proves the benefits of Monotube Foundation Piles, but also provides supporting documentation to help users successfully design and specify the use of Monotube piles in their own projects.

Monotube Piles are cold-processed tapered steel piles with a fluted cross-section for added rigidity. Supplied in three taper rates and 12-, 14-, 16- and 18-in. diameters, Monotubes install easily with conventional equipment. Most test pile programs have shown the superiority of the tapered design resulting in less driven depths, higher load capacities and thus fewer piles required to meet load designs.
An unusual advantage of the Monotube pile is the ability to nest a tapered section into an extension to produce a compact bundle. This process reduces shipping and storage volume by as much as 40%.

Offering a unique combination of design and construction features, Monotube piles promote the use and economics of shorter driven lengths, using simple and economical installation techniques and conventional equipment.

Cold Processing:

A unique fabrication process which increases the tensile yield strength of steel in the fabricated pile to a guaranteed minimum of 50,000 psi.

Directly Driven:

No mandrel or special devices needed. Readily available standard truck or crawler cranes can be used.

Fluted Cross-Section:

Provides increased rigidity to withstand handling and driving stresses. The combined effect of cold processing and vertical fluting permits the use of lighter gauges. For equal strength a pipe pile must have a proportionally thicker wall.

Concrete Savings:

The tapered shape reduces concrete volume requirements and attendant costs.

Tapered Shape:

The tapered shape develops the necessary load capacity with minimum embedment in the bearing stratum.

Conical Noses:

Forged steel conical noses are factory attached and included in the price of all tapered sections. Heavy wall provides maximum tip protection.

Choice of Tapers:

Three rates of taper, F, J and Y, are available to develop the required capacity in the bearing stratum.


Pile sections are self-aligning for joint welding due to telescopic design and fluted cross-section. Cutoffs can be reused to extend other piles.


Orders can be adjusted as to length of pile and quantity as the job progresses to meet actual requirements.

Monotubes can be installed by any contractor having pile driving competence and experience. Monotube Pile Corp. piling engineers are available to provide advice and assistance, especially on export jobs.