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Postech

RESIDENTIAL SOLUTIONS

SCREW PILE FOUNDATIONS FOR SHEDS & OUTBUILDINGS

Your shed or outbuilding needs a foundation that handles frost, uneven ground, and heavy loads. Postech screw piles are installed below the frost line in a matter of hours, with no excavation and no damage to your property.

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THE PROBLEM

Sheds Sink, Shift, and Settle. Here’s Why.

Most sheds fail at the foundation. Wood posts rot underground. Concrete pads crack when frost pushes soil upward. Gravel footings shift on uneven terrain. After one or two winters, your shed doors no longer close, your floor tilts, and the structure starts to pull apart.

The underlying cause is frost heave.

In Canada, soil freezes and thaws repeatedly every year, exerting enough vertical force to lift and displace any foundation that isn't anchored below the frost line. A shed sitting on surface-level supports doesn't stand a chance over the long term.

The depth required to get below the frost line varies by region, but in most of Canada, it ranges from 1.2 to 2.4 metres. That's deeper than any concrete pad or surface block can reach, and excavating to that depth for a simple shed is expensive and disruptive.

THE SOLUTION

Anchored Below the Frost Line. Installed in Hours.

Postech screw piles are steel helical piles screwed directly into the ground by a certified installer using a hydraulic drive head.

They reach below the frost line in any soil condition, including soft ground, rocky terrain, and sloped lots where conventional excavation is impractical or impossible.

Installation is fast. Most shed foundations require 4 to 8 piles. A certified Postech installer can complete the job in a half-day. No concrete curing time. No excavation. No soil removal to haul away. Your shed structure can go up the same day.

The piles are hot-dip galvanized steel, rated for a lifespan of a minimum of 75 years in the harshest environments.

They're engineered to carry the load of your shed structure permanently, without movement caused by frost or settling.

And if you already have a shed that's shifted or sunk, Postech piles can be installed under an existing structure to stabilize it, without tearing it down.

BUILT-IN ADVANTAGES

Why Shed & Outbuilding Owners Choose Postech

Installed in a Single Day

A complete shed or outbuilding foundation, ready for framing the same afternoon. No curing delays, no weather windows to hit.

No Disruption to Your Yard

No excavation, no concrete trucks, no compacted soil. Your landscaping stays intact from first pile to last.

Lifetime Warranty

Every Postech installation is backed by a written lifetime warranty. Not a marketing claim. A document you keep.

Installs Year-Round

Screw piles don't require warm temperatures. Start your project in early spring or late fall without compromise.

Eco-Friendly Process

No concrete means no heavy emissions, no water runoff, and no soil disruption beyond the pile itself. A cleaner install, start to finish.

Cost-Effective

Postech screw pile foundations typically cost 20-40% less than poured concrete, with no excavation crew, no concrete pump, and no days lost to curing.

PROVEN IN THE FIELD

Projects We've Built On

From garden sheds to multi-door workshops, Postech screw piles support outbuildings of every size and use across Canada and the United States.

Wooden shed for ATV

Multi-door shed

Detached outbuilding

Workshop on screw piles

Storage shed on screw piles

FAQ

Common Questions About Foundations for Sheds & Outbuildings

Everything you need to know about screw pile foundations for sheds and outbuildings.

Most residential sheds need between 4 and 8 Postech screw piles, depending on the size and load of the structure. A small 8x10 storage shed typically requires 4 piles. A larger workshop or multi-door outbuilding may need 6 to 8.

Your certified Postech installer will assess your project and recommend the right number and pile size for your specific application.

Yes. This is one of the most common reasons homeowners choose screw piles over concrete for sheds.

On sloped terrain, concrete pads require significant grading and leveling work. Postech piles are driven to the correct depth below the frost line regardless of ground slope, and pile height is adjusted at the surface to create a level bearing point for your structure. No grading required.

Yes. Postech piles can be driven under an existing shed to lift and stabilize the structure permanently. This avoids the cost and disruption of demolition and rebuilding.

A certified installer will assess the structure, determine the number of piles required, and install them through or alongside the existing floor system.

Postech screw piles are engineered for a wide range of soil conditions, including soft soil, clay, sandy ground, and rocky terrain.

The installer uses a torque-monitoring system during installation to verify the pile has reached the required bearing capacity. If the first pile position encounters rock or an obstacle, the location is adjusted.

Most Canadian residential soil conditions are well within the range of Postech pile specifications.

Installation for a standard residential shed takes between 2 and 4 hours.

The installer arrives with the equipment, drives the piles to the required depth, levels the bearing points, and the job is done. No concrete curing time means your builder can begin framing the same day.

Yes. Postech piles are driven past the frost line depth for your specific region, which ranges from approximately 1.2 to 2.4 metres across Canada.

The galvanized steel construction is not affected by freeze-thaw cycles once the pile is seated at the required depth. This is precisely why screw piles outperform surface-level concrete pads and wood posts in Canadian climates.

Yes. Postech's warranty covers screw pile foundations regardless of the structure type, including sheds, garages, and outbuildings.

The warranty guarantees the piles against movement caused by frost heave for the useful life of the pile (a minimum of 75 years in the harshest environments) when installed by a certified Postech installer following Postech's installation standards.

GET STARTED

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150+ certified Postech installers across Canada and the United States, ready to assess your site and schedule your installation fast. Enter your location to find the one serving your area, get a free quote and get your shed project started.

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EXPLORE MORE

Other Projects We Support

View All Solutions

Decks & Patios

Build your deck on a foundation that won't move. Postech screw piles are the most common deck foundation choice for homeowners across Canada.

Home Additions

Adding a sunroom, mudroom, or secondary suite? Screw piles support residential additions without major excavation.

Cottages & Cabins

Remote lots, rocky ground, seasonal use. Postech screw piles are built for cottage country conditions.

How Screw Piles Work

Not sure if screw piles are right for your project? Start here. We explain the technology, the installation process, and what to expect.

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