THE SHORT ANSWER
Estimate a garage floor coating from slab area, preparation needs and selected system. Keep crack treatment and moisture concerns separate from coating application so the finish promise is properly bounded.
The worked project in this guide is 400 sq. ft. garage slab coating. It uses an original fictional job to explain the estimating decisions, with a matching garage floor coating PDF example. Replace the example inputs with your measurements, supplier quotes and labor costs.
1. Measure the slab to coat
Record the garage floor footprint and any excluded utility pads or steps. Use 400 square feet for this example rather than property or garage exterior area.
2. Assess concrete condition
Existing coatings, oil staining, cracking and moisture can change preparation. The limited crack-treatment allowance covers cosmetic surface preparation only; movement, structural cracks and slab repair require a separate assessment.
3. Specify the coating system
Product components, finish and application requirements should follow the selected manufacturer information. The $850 material line is fictional, not a coverage benchmark.
4. Define access and curing
Agree when the garage will be cleared and when vehicles may return under the selected system requirements. Include cleanup and customer handoff.
A worked garage floor coating calculation
Mechanical preparation is 400 sq. ft. × $2.20 = $880. Coating labor is 400 × $1.90 = $760.
The complete example contains 7 lines totaling $3,365.00 before any tax or markup. These are deliberately stated example prices, not a survey, regional price recommendation or offer to perform the job.
To set your own selling price, review direct costs and decide how you will cover overhead and profit. For example, adding 20% to a $1,000 cost gives $1,200; it does not produce a 20% gross margin. Use the approach you intend consistently, and avoid adding a second markup to rates that already include it.
Before you send the estimate
- Measure coating area.
- Inspect moisture and existing coatings.
- Select system and finish.
- Agree clearing and return-to-use assumptions.
Example scope boundary: No moisture mitigation, slab leveling, structural crack or other slab repair, old-coating removal beyond stated preparation or vehicle-storage service.
Review the client name, location, validity date and all calculations. Tax is not included in this example; determine the correct treatment for the actual work rather than copying a sample percentage.
Common questions
Can coating price be based only on floor area?
Area is one quantity. Surface condition and preparation can change the work substantially.
Are cracks included?
Only the defined limited allowance is included here. Measure and price larger repairs separately.
TAKE THE NEXT JOB FROM SCOPE TO PDF
Make your own garage floor coating estimate.
Use Estimates on iPhone or Android to draft a scope with AI assistance or enter your own items. Review quantities and rates, add your business logo, and export a PDF. Example files are free to view; app features may require an in-app purchase.
