Terraforma Drilling

Standard Penetration Testing (SPT) Services in Sydney & NSW

TerraForma Drilling offers Standard Penetration Testing (SPT) services across Greater Sydney and regional NSW. We support geotechnical investigations, site classifications, and foundation assessments with calibrated equipment and a custom ute-mounted drilling platform designed for tight-access sites.

Our Process
What is Standard Penetration Testing (SPT)?

The Standard Penetration Test (SPT) is a common on-site method for testing soil. It measures soil resistance by counting the number of hammer blows required to drive a sampler into the ground. The resulting SPT N-values help engineers assess foundation design, site classification, and ground conditions.

Standard Penetration Testing

While both Standard Penetration Testing (SPT) and Cone Penetration Testing (CPT) are used for geotechnical site investigations, SPT is commonly selected where borehole drilling, soil sampling, and direct subsurface information are required. Geotechnical engineers choose the appropriate testing method based on ground conditions, investigation objectives, and project requirements. Standard Penetration Testing is often used in Sydney and NSW before residential, commercial, infrastructure, or environmental projects begin. TerraForma uses calibrated equipment and a small drilling platform to reach places where larger rigs cannot.

Rig Tech Specifications

SPT Testing Equipment & Field Capability

Solid Flight
Auger Drilling

Details

Testing Method

Standard Penetration Testing (SPT)

Equipment

Calibrated SPT hammer and associated testing equipment

Testing Output

SPT N-value data and field records

Testing Scope

Completed at consultant-specified depths and intervals

Drilling Platform

Ute-mounted tight-access geotechnical drilling rig

Site Access

Suitable for constrained urban and restricted-access sites

Safety Systems

Full hydraulic interlocks and safety systems

Maintenance

Documented maintenance programme and service records available on request

Certifications

ISO 9001, ISO 14001, ISO 45001 certified systems

Mobilisation

Within 24 hours across Greater Sydney

Quote Turnaround

Same business day

Calibration Records

Available on request

Where SPT Testing Supports Your Projects.

SPT testing supports a wide range of geotechnical investigation programmes across Greater Sydney and NSW.

We carry out Standard Penetration Testing in Sydney and NSW for commercial buildings, industrial sites, residential developments, and mixed-use construction projects.

Commercial Development
Sampling & Testing Methods

SPT Data & Testing Capabilities

SPT N-Value Data
SPT N-Value Data

Our calibrated Standard Penetration Testing gives N-value data that engineers use to assess soil strength, density, and subsurface conditions.

Field Records & Borehole Information
Field Records & Borehole Information

We provide SPT N-value data, borehole records, and field observations in a clear and organised format to support engineering assessment and project documentation.

Testing to Your Investigation Requirements
Testing to Your Investigation Requirements

We conduct SPT testing at the depths and intervals you specify, in accordance with your project requirements and bore plans.

Tight-Access SPT Investigations
Tight-Access SPT Investigations

Our small ute-mounted drilling platform allows Standard Penetration Testing in Sydney locations where larger rigs cannot reach.

How It Works

From Scope to Site Mobilisation

01
Submit Your Scope

Send us your bore plan, required SPT test intervals, investigation depths, and site access details so we can accurately scope your project.

02
Receive a Quote

We review your investigation requirements, provide a clear commercial proposal, and complete Dial Before You Dig (DBYD) enquiries before mobilisation as part of our commitment to safe field operations.

03
Mobilisation & SPT Field Testing

Our drilling team mobilises to your Sydney or NSW site and performs Standard Penetration Testing in accordance with your investigation plan and testing requirements.

WHY CHOOSE US

Why Choose TerraForma Drilling?

Calibrated SPT Equipment
Calibrated SPT Equipment

Our calibrated SPT testing equipment provides reliable field data for geotechnical investigations across Greater Sydney and regional NSW. Calibration records are available on request before the first engagement.

Tight-Access SPT Capability
Tight-Access SPT Capability

Our custom ute-mounted drilling platform allows SPT testing on Sydney sites where standard rigs cannot operate, including narrow residential lots, low-clearance structures, and confined corridors across Greater Sydney.

Drilling by Engineers, for Engineers
Drilling by Engineers, for Engineers

We know how important Standard Penetration Test data is for engineering decisions. That’s why we align our testing with your investigation goals and project needs.

Fast Sydney Mobilisation
Fast Sydney Mobilisation

We can mobilise within 24 hours across Greater Sydney and offer quick support throughout NSW to help keep your investigation projects on track.

Certified Quality & Safety Systems
Certified Quality & Safety Systems

We use ISO-certified management systems, follow maintenance schedules, and provide WHS documentation to support compliant project delivery across Greater Sydney and regional NSW.

Transparent Field Records
Transparent Field Records

Every SPT test is documented with depth, blow count, N-value, and soil description recorded at the time of testing. Field records are handed directly to your nominated engineer or consultant on completion — no delays, no chasing.

Case Study Snippet

TerraForma Drilling On-Site Success

22 Boreholes Delivered in 4 Days: We Coordinated Geotechnical Drilling Across 5 Greater Sydney Sites

22 boreholes across 5 Greater Sydney sites in 4 days. Progressive bore logs issued as each site completed. One drilling subcontractor, consistent field procedures throughout.

Read More
How We (TerraForma Drilling) Solved a Tight-Access Site Investigation Without Compromising the Bore Plan

4 boreholes at a narrow Inner West Sydney site in 1 day. Ute-mounted SFA rig through a sub-3m driveway. Full bore plan completed without relocating a single borehole.

Read More

Image Gallery — SPT Testing in Action

Calibrated SPT hammer and testing equipment setup
Demonstrating SPT testing performed during a geotechnical investigation
Field crew recording SPT N-value data and borehole information
Ute-mounted drilling rig completing SPT testing on a tight-access site
Close-up of drilling, sampling, and testing operations
Drilling team operating safely on a Sydney or NSW project site

Need Reliable SPT Testing for Your Next Investigation?

Contact TerraForma Drilling to discuss calibrated Standard Penetration Testing, in-situ soil testing, and tight-access geotechnical investigations that support your next project in Sydney and NSW.

Or, Call: (02) 7239 8878

FAQs

Common Questions

A Standard Penetration Test is an in-situ soil testing method used to measure soil resistance and density. The resulting SPT N-value data helps geotechnical engineers assess ground conditions for foundation design, site classifications, and engineering assessments.

Yes. TerraForma provides SPT testing in Sydney and regional NSW using calibrated equipment and a tight-access drilling platform for residential, commercial, infrastructure, and environmental investigations.

Yes. Our ute-mounted drilling rig enables Standard Penetration Testing on constrained sites, including narrow residential lots, low-clearance areas, and developed urban environments.

For most projects within Greater Sydney, TerraForma can mobilise within 24 hours of confirmation. Regional NSW mobilisation schedules are confirmed during the quoting process based on project requirements and location.