EXAMPLE PROPOSAL A — AFTER CLARIFICATION

ILLUSTRATIVE TEACHING CASE — fictional proposals, prices and specifications; not SCS pricing, an offer or a construction design.

This fictional 600 ft² case is not a buildable plan. Project-specific design and actual contractor terms replace these examples.



1. Measured area & intended use
600 ft² replacement driveway for passenger vehicles; same footprint in both proposals.

2. Demolition & removal
Remove existing concrete in the marked footprint; load, haul and dispose. Excluded initially; written addition $900.00.

3. Excavation
Excavate to the example slab/base profile. Unsuitable soil beyond that profile excluded; stop and obtain a priced change before further work.

4. Base & compaction
Supply, place and compact the example 4-inch aggregate base. Excluded initially; written addition $600.00.

5. Drainage & elevations
Maintain the marked garage tie-in and route surface water toward the existing street-side outlet. No new drain, pipe or curb work included; record elevations before placement.

6. Thickness & concrete mix
Example schedule: nominal 5-inch slab; 4,000 psi specified 28-day mix. No color or decorative admixture.

7. Reinforcement
Example schedule: #3 reinforcing bars at 18 inches each way, supported on chairs; verify placement before concrete covers it.

8. Joints
Example layout: six 10 × 10-foot panels; conventional saw-cut contraction joints and isolation at the garage interface. Saw-cut depth and timing follow the project specification.

9. Access & placement
Street-side truck access and direct discharge assumed available; protect the adjacent walk. Pumping and access reconstruction excluded.

10. Finish
Gray broom finish with formed edges. No stamping, stain, sealer or decorative border.

11. Curing & load release
Apply the specified curing compound after finishing; retain product and application record. Contractor controls access and provides written vehicle-release instructions based on project conditions.

12. Permits & inspections
Contractor checks with the applicable authority and handles required approvals; a $150 fee allowance is included. Reconcile actual fees in writing.

13. Cleanup & restoration
Remove forms and job debris; fine-grade disturbed edges. New sod, planting and irrigation repair excluded.

14. Changes, payment & warranty
Written approval of scope and price before extra work. Example payment: 20% on scheduling, 50% after placement, 30% after walkthrough. Example one-year workmanship coverage; normal shrinkage, misuse and unrelated ground movement excluded.

15. Total & excluded work
$7,200.00 starting + $900.00 removal + $600.00 base = $8,700.00. Other exclusions above remain unpriced.



DECISION RECORD

In this fictional case, advance Bid B to the contract review: the clarified scope and terms match, and its compared total is $300 lower. Resolve the shared site risks first. Price alone does not establish workmanship, licensing, insurance or suitability.



Source: https://www.scsbuilds.com/resources/concrete-estimate-comparison#complete-case

Prepared by SCS Roofing and Concrete | October 31, 2026