A 20x40 concrete driveway tear-out and replacement is one of the most common residential jobs: the homeowner has an old cracked driveway measuring 20 feet by 40 feet, and they want a full tear-out and replacement with a standard 4-inch broom finish. The apron to the street stays in place, but the main driveway gets removed, hauled off, re-based, and repoured.
This is exactly the kind of job where contractors lose money by quoting from a rough square-foot number. Demo is heavy, disposal adds up fast, base conditions matter, and the customer often assumes everything from saw cuts to cleanup is already included.
If you want the broader framework behind this estimate, start with Concrete Estimate Template: How to Estimate Concrete Work Accurately. This article is a worked example with real numbers for one specific driveway scope.
You can also compare the format against the sample concrete estimate PDF, which is the kind of downloadable example many homeowners expect when they review a driveway proposal.
The job scenario
Here are the assumptions:
- Driveway size: 20 x 40
- Area: 800 sq ft
- Existing driveway: deteriorated concrete, approximately 4 inches thick
- New driveway thickness: 4 inches
- Finish: broom finish
- Reinforcement: fiber mesh
- Access: direct truck access from the street
- Base: standard regrade plus 4 tons of additional stone in low areas
- Saw cuts: included
- Permit: excluded
- Apron and sidewalk: excluded
This is a straightforward replacement job, not a stamped driveway and not a deep commercial slab.
Step 1: Calculate demo and disposal
Demo is often the difference between a profitable driveway quote and a bad one.
At 800 sq ft, many contractors will price demo by square foot because it combines breaking, loading, and hauling into a simpler estimating unit. For this example, use:
- Demo labor and machine production target: $1.85 per sq ft
- Disposal and dump allocation: $0.65 per sq ft
Demo math:
800 x $1.85 = $1,480
800 x $0.65 = $520
Demo and disposal total = $2,000
If the slab is thicker than expected or reinforced with rebar instead of light mesh, that number changes. That is why the estimate should say it assumes a typical residential driveway thickness unless otherwise visible.
Step 2: Calculate concrete yardage
The new driveway is 800 sq ft at 4 inches thick.
Cubic Yards = (20 x 40 x 0.333) / 27
= 9.87 cubic yards
Add 6% waste:
9.87 x 1.06 = 10.46 cubic yards
A practical order is 10.5 yards or 11 yards depending on supplier increments and comfort level.
Assume ready-mix pricing like this:
- Concrete: $178 per yard
- Quantity ordered: 10.5 yards
- Fuel and environmental fees: $48 total
10.5 x $178 = $1,869
$1,869 + $48 = $1,917
Step 3: Estimate base prep and forming
Replacement driveways often reveal low spots or soft areas after tear-out. In this example, the subgrade is mostly good, but you need extra stone in several places.
Use these assumptions:
- Regrading and compaction: 800 sq ft
- Additional stone: 4 tons at $54 each delivered
- Perimeter forming: approximately 120 linear feet
- Stakes and consumables: included in form pricing
Math:
Stone = 4 x $54 = $216
For sell pricing, use line items rather than raw cost only:
- Base prep and compaction: $1.15 per sq ft
- Forming: $5.35 per linear ft
Step 4: Build labor honestly
A replacement driveway is usually a two-day or two-visit job even with solid access.
Use a four-person crew:
- Demo and tear-out day: 7.5 hours
- Base, forms, and final prep: 5.5 crew hours additional
- Pour and finish day: 7.0 hours
- Combined loading, travel, and cleanup: 4 labor hours
Total labor:
(4 x 7.5) + (4 x 5.5) + (4 x 7.0) + 4 = 84 labor hours
Loaded hourly rate: $54
84 x $54 = $4,536
That number explains why copying a neighbor's price or quoting from memory is dangerous. Labor is the single biggest line in many driveway jobs.
Step 5: Assemble the line items
Here is a clear estimate structure the customer can understand.
| Line item | Quantity | Unit | Unit price | Total |
|---|---|---|---|---|
| Remove and haul off existing driveway | 800 | sq ft | $2.50 | $2,000 |
| Regrade base and compact subgrade | 800 | sq ft | $1.15 | $920 |
| Additional aggregate base | 4 | ton | $95 | $380 |
| Perimeter forming | 120 | linear ft | $5.35 | $642 |
| Fiber mesh reinforcement | 800 | sq ft | $0.44 | $352 |
| Ready-mix concrete supply and placement | 800 | sq ft | $7.65 | $6,120 |
| Saw cuts and control joints | 120 | linear ft | $2.15 | $258 |
| Final cleanup and washout handling | 1 | flat rate | $260 | $260 |
Total estimate: $10,932
The blended rate is:
$10,932 / 800 = $13.67 per sq ft
That blended number is useful for sanity checking, but it is not the number you should build the job from.
Optional items you may want on the estimate
Driveway customers often ask about upgrades after they see the base price. Optional items help you show those choices cleanly.
| Optional item | Quantity | Unit price | Total |
|---|---|---|---|
| Upgrade to 5-inch thickness | 800 sq ft | $1.40 | $1,120 |
| Sealer after cure | 800 sq ft | $0.95 | $760 |
| Replace apron section | 120 sq ft | $12.50 | $1,500 |
Because these are optional line items, they can appear on the estimate without changing the required approval total.
Scope wording that protects you
A driveway estimate should not just show a total. It should define the assumptions behind that total.
Good wording looks like this:
Remove and dispose of existing approximately 20x40 residential driveway and install new 4-inch broom-finish concrete driveway including standard base regrade, added stone in minor low areas, fiber reinforcement, control joints, and standard cleanup. Price excludes permit fees, city sidewalk or apron replacement, unsuitable subgrade correction beyond normal prep, and drainage work not visible at time of estimate.
That one paragraph prevents a lot of confusion.
Common mistakes on a driveway tear-out and pour
1. Underpricing disposal
Broken concrete is heavy, and dump fees are real.
2. Forgetting extra stone
Old driveways rarely come out and reveal a perfect base.
3. Leaving out jointing
Saw cuts, layout, and cleanup take time.
4. Quoting the same rate as a new construction driveway
A replacement driveway includes demo risk.
5. No expiration date
Material pricing and schedules change. Give the estimate a 15- or 30-day validity period.
How Estimation Builder fits driveway estimates
Replacement driveways are repetitive enough that you should not type every line from scratch. Estimation Builder lets you save common items like tear-out, forming, fiber mesh, broom finish, and saw cuts in a reusable catalog. On the next driveway estimate, you can pull those items in, adjust quantities, show optional upgrades, and export a PDF from a phone or laptop.
If the customer later asks for a thicker pour or apron replacement, you can turn the accepted estimate into a change order instead of rebuilding the paperwork manually.
Final takeaway
Concrete Driveway Estimate Example: 20x40 Tear-Out and Pour shows why a driveway quote needs more than one square-foot rate. On this 800 sq ft example, a clear itemized estimate lands around $10,932 and gives you room to explain demo, base prep, and upgrade options without guessing.
For a downloadable example format, download the sample concrete estimate PDF. If you want to build driveway estimates, change orders, and invoices in one mobile-friendly app, start Estimation Builder's 30-day free trial for $75/month after the free trial. No credit card is required.