Sub-base Preparation Checklist

Ensure a solid foundation for your construction project! Download our free Sub-base Preparation Checklist - your guide to proper compaction, grading, and drainage. Avoid costly mistakes & build strong. #construction #subbase #checklist #foundation #building

This Template was installed 5 times.

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Site Clearance & Excavation

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Ensuring the site is clear of obstructions and excavated to the correct level for sub-base installation.

Existing Site Conditions Description

Excavation Depth (meters)

Excavation Depth Variance Allowed (meters)

Obstructions Removed (Select all that apply)

Details of Utility Location and Protection (if applicable)

Site Clearance Photos (Before)

Topsoil Stripping & Stockpiling - Method

Grading & Leveling

2 of 8

Establishing the correct slope and level of the excavated area prior to sub-base placement.

Design Grade Elevation (m)

Existing Ground Level (m) - Average

Cut/Fill Depth (m) - Maximum

Leveling Method Used

Description of Leveling Procedure & Challenges Encountered

Grade Variance (m) - Maximum Acceptable

Surface Finish Required

GPS Coordinates of Leveling Points (Representative)

Geotextile Installation (if applicable)

3 of 8

Proper installation of geotextile fabric for separation and filtration purposes.

Geotextile Type Specified?

Geotextile Material Specification (e.g., Manufacturer, Grade)

Geotextile Overlap Width (meters)

Overlap Orientation (as per specification)

Installation Method Used (e.g., Unrolled, Laid)

Check for Damage/Defects

Upload Photograph of Geotextile Installation

Area of Geotextile Installed (m²)

Sub-base Material Delivery & Storage

4 of 8

Confirmation of correct material type, quantity, and proper on-site storage to prevent contamination.

Material Type Confirmation

Specify Material Type (if 'Other')

Delivery Quantity (in tons/cubic meters)

Delivery Ticket/Receipt

Material Condition Upon Delivery

Notes on Material Condition

Storage Location

Storage Protection Measures

Sub-base Material Placement

5 of 8

Ensuring consistent material thickness and compaction during placement.

Sub-base Layer Thickness (inches)

Area of Sub-base Installation (sq ft)

Material Type Verification

Notes on Material Placement (e.g., specific issues, adjustments made)

Material Spread Consistency

Photo Evidence of Material Placement

Material Volume Placed (cu yd)

Date of Material Placement

Sub-base Compaction

6 of 8

Achieving the required compaction levels according to project specifications.

Initial Compaction Test Result (Density)

Target Compaction Density (%)

Number of Passes with Compaction Equipment

Compaction Equipment Type

Notes on Compaction Process (e.g., moisture control, problem areas)

Moisture Content (%) at Time of Compaction

Did compaction achieve target density?

Attach Compaction Test Reports

Compaction Supervisor Signature

Quality Control & Testing

7 of 8

Performing necessary tests to verify material properties and compaction levels.

Moisture Content (%)

Compaction Test Result (density ratio)

Particle Size Distribution - % Passing 75µm (Sieve)

Material Type Verified?

Grading Certificate Received?

Testing Date

Comments/Observations

Attach Test Report (PDF)

Final Inspection & Sign-off

8 of 8

Verifying all requirements are met and obtaining sign-off for sub-base preparation.

Final Compaction Test Results (Proctor)

Final Level Variation (Maximum allowed)

Material Type Verified as per Specification?

Any Observed Issues or Deviations?

Inspection Date

Inspection Time

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12:30 AM
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Inspector Signature

Sub-base preparation meets project requirements?

More about this Template Construction Management

Frequently Asked Questions

Can I customize this template after installing it?

Absolutely. Once installed, you can add, remove, or reorder tasks, add custom fields, and adjust deadlines to fit your specific workflow.


Can I add images or photos to these checklist items?

Yes. Our platform allows you to attach photos, signatures, and notes to any checklist item for better verification and proof of completion.


Can I create a custom checklist from scratch instead of using a template?

Yes. You can use our "Create your own checklist" feature to build a unique workflow tailored exactly to your operational requirements.


Can I add dependencies between tasks?

Yes, you can set up conditional logic and dependencies to ensure your team follows the correct sequence of operations.


Can I assign specific checklist items to different team members?

Yes. You can assign individual tasks to specific employees, ensuring clear accountability across your entire team.


Can I use these checklists on mobile devices in the field?

Yes. Our platform is fully responsive, allowing your team to complete, update, and upload photos to checklists directly from any smartphone or tablet.


How do I notify my manager when a checklist is completed?

You can set up automated notifications (via email, push notification, or in-app alerts) to trigger whenever a checklist is finished or if an item fails inspection.


Can multiple people work on the same checklist simultaneously?

Yes, the platform supports real-time updates, allowing multiple users to contribute to a single live checklist.


Where is the data from completed checklists stored?

All completed checklists are stored securely in your Work OS dashboard, creating a permanent, searchable audit trail of your operations.


Can I generate reports based on my checklist results?

Yes. You can track completion rates, identify recurring issues, and monitor team performance through our integrated reporting and analytics tools.


How can I use these checklists for compliance or auditing purposes?

Because our checklists capture timestamps, photos, and digital signatures, they serve as a robust digital paper trail for regulatory compliance and internal audits.


Can I export my completed checklist data for use in other tools?

Yes. You can export your data in various formats (CSV, Excel, etc.) to integrate your operational insights with your other business software.


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