Shaft Area Profile Evaluator (SHAPE®)

A cost effective QA testing device providing a visual representation of a drilled foundation excavation prior to concrete pour in either wet or dry conditions.

  • Wireless acquisition calculations of a drilled excavation to determine shaft verticality, radius,  and volume, with 360 degree, 2D and 3D profile views
  • Data acquisition at a rate of approximately one scan per second with eight channels scanned simultaneously
  • Quick connection to Kelly bar or can be used with a top mount winch system

Comparable to SoniCaliper or Sonar Caliper and comparable to the Koden Test

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  • Description
  • Technical Specifications
  • Reference Materials
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SHAPE® is a cost-effective quality assurance testing device used for deep foundations such as drilled shafts, slurry walls, barrettes and more to determine the excavation verticality and profile. It provides superior performance over testing limitations experienced with a sonic caliper due to density of slurry walls.

Drilled shafts are rarely ideal cylinders and irregularities can affect capacity and design. SHAPE® better characterizes the three-dimensional
shape of drilled shafts, bored piles and other excavated deep foundation elements. SHAPE® provides a fast, economical visual representation of the foundation verticality prior to placing concrete in wet or dry excavations. The results of SHAPE measurement provide more details compared to other sonic caliper tools.


SHAPE® offers:
• Three systems to fit your excavation needs – SHAPE for wet pours; SHAPE-AIR for dry shafts; SHAPE Cabled for real-time data collection
• Quick connection to Kelly bar or can be used with an optional winch system
• Multi-channel ultrasonic device to scan the sidewall condition of wet pour drilled shafts (SHAPE – standard and cabled)
• Multi-channel Lidar sensor device to scan the sidewalls of a dry excavation (SHAPE-AIR)
• Wireless acquisition calculations of shaft profile to determine shaft verticality, radius, and volume
• Data acquisition at a rate of approximately one (1) scan per second
• Eight (8) channels scanned simultaneously SHAPE’s drilling stem advancement rate is approximately one (1) foot per second,
offering 360˚, 2D and 3D profile views.


Patent No. 10330823

The SHAPE® conforms to ASTM Standard D8232 – Standard Test Procedures for Measuring the Inclination of Deep Foundations.


SHAPE® Technical Specifications


PDF Format

SHAPE Sensor Unit

Size: 254 x 660 mm (10 x 26 in); without Kelly bar adapter
Weight: 30 Kg (65 lbs.); without Kelly bar adapter
Material: Stainless Steel and Aluminum
Standard Kelly Bar Connection Sizes: 101.6 mm (4 in), 152.4 mm (6 in), 203.2 mm (8 in)
Temperature Range: Operating -20° to 55°C (-4° to 131° F); Storage: -40° to 85°C (-40° to 185° F)
Power: 6-hour continuous usage with external 12V battery
Sampling Rate: 1 MHz Sampling Frequency
2 Pressure Transducers for continuous real time fluid density and depth measurement
2 – 85 kHz Ultrasonic Transducers for continuous real time wave-speed measurement
8 – 85 kHz Ultrasonic Transducers for continuous Shaft Radial measurement
Radial Measurement Accuracy down to 1.58 mm (0.0625 in)

SHAPE Main Unit

Size: 320 X 250 X 68 mm (12.6 x 9.8 x 2.7 in)
Weight: 5 Kg (11 lbs.)
Temperature range: Operating 0° to 40°C (32° to 104° F; Storage: -20° to 65°C (-4° to 149° F)
Display: 26.4cm (10.4 in), sunlight readable, resolution 1024 X 768; capacitive touch screen
Video Outputs: HDMI
Battery Power: 4-hour continuous data collection 12V battery + back-up battery standard
Charging time: 6-hour max; 120/240 charger input voltage
Operating System: Microsoft Windows® 10 IoT Enterprise LTSC
Data storage and ports: 128 GB or larger SSD internal drive; Ethernet port; 4 USB ports

Shaft Criteria

Minimum Shaft Diameter: 660 mm (26 in)
Maximum Shaft Diameter: 6300 mm (247 in)
Maximum Shaft Length: 150 m (492 ft)
Data Collection in Water, Polymer Slurry, and Bentonite Slurry
Maximum sand content during data collection: 10%


Optional external accessories: USB keyboard and mouse
Remote Operation: SHAPE Main Unit is equipped for high-speed internet access and remote operation
Technical support: SHAPE Main Unit is equipped for remote error checking and updating
Units of operation: Traditional US, SI, or Metric
Full one-year warranty on parts and labor
Technical manual provided in PDF form on a USB