Machine Data

Compressor Weight

lbs

Driver Weight (Motor/Engine)

lbs

Ancillary Equipment (Coolers, Bottles, etc.)

lbs

Compressor Horsepower (for reference)

Machine Footprint

Overall machine + driver envelope

Length (along crankshaft)

Width (perpendicular)

Maintenance Access Clearance (each side)

Foundation Parameters

Target Mass Ratio (Foundation:Machine)

Concrete Density

Concrete Strength (f'c)

Soil Conditions

Allowable Soil Bearing Capacity

psf

Groundwater Depth (if known)

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Foundation types, mass ratios, concrete specs, anchor bolts, and vibration control

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Design Guidelines

Mass ratio: 3:1 to 5:1 (foundation:machine)
f'c minimum: 4,000 psi
Bearing target: <1,500 psf
Bearing max: 2,000 psf
Block mount: >5,000 HP

Typical Block Depths

3-4 ft: Small recip (<1,000 HP)
4-6 ft: Medium recip (1,000-3,000 HP)
6-10 ft: Large recip (>3,000 HP)
10+ ft: High HP, poor soil

Foundation Block Sizing Calculator

Machine Data

Machine Footprint

Foundation Parameters

Soil Conditions

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Foundation Block Results

Mass Analysis

Design Guidelines

Typical Block Depths

Foundation Block Sizing Calculator

Machine Data

Machine Footprint

Foundation Parameters

Soil Conditions

📚 Learn the Theory

Foundation Block Results

Mass Analysis

Design Guidelines

Typical Block Depths

Related Calculators

Mass Ratio Check

Anchor Bolt Sizing

Soil Bearing Pressure

Concrete Volume