Aggregate and Sub-Base Worksheet
Compacted volume to loose volume to tons, with a lift plan for the compaction itself.
Aggregate is measured as compacted depth but delivered loose and billed by weight, so there are two conversions between your tape measure and the invoice. This sheet does them in order and adds a lift plan, because ordering the right tonnage and then placing it in one thick layer still gives you a base that settles.
How to fill it in
- Work in compacted depth first — that is the thickness the finished base must be.
- Compacted volume in cubic feet = length × width × (depth ÷ 12); divide by 27 for cubic yards.
- Add the compaction allowance, typically 20 to 25% for crushed stone, to get loose volume.
- Convert to tons using your supplier's own figure, not a generic one.
- Plan the lifts before delivery: 3 to 4 inches per lift, compacted before the next goes down.
Aggregate and Sub-Base Worksheet
probuildercalc.com — free printable takeoff worksheet
Sheet ___ of ___
Prepared by ______________
Project details
| Project | Date | Materialbase / bedding | Tons per cu ydsupplier figure | Compaction allowance% |
|---|---|---|---|---|
Area schedule
Compacted volume first, then loose volume, then tons.
| Area | Lengthft | Widthft | Depthin compacted | Compactedcu yd | Loosecu yd | Tons |
|---|---|---|---|---|---|---|
Lift plan
One row per lift. Compact each lift fully before placing the next.
| Lift no. | Depthin | Compactor type | Passes | Moisture / notes |
|---|---|---|---|---|
Delivery record
| Supplier | Tons per load | Loads | Total tons delivered | Ticket nos. |
|---|---|---|---|---|
Figures on this sheet are estimates for planning and ordering. Confirm structural requirements and code compliance with your local building department. Free to print and reuse — probuildercalc.com/worksheets
Run the numbers
Once the sheet is filled in, these tools do the conversions.
Read the method
The guide that explains the maths this sheet is built around.
Gravel vs. Sand: Calculating Sub-Base