✨ Epoxy Calculator
Calculate epoxy needed for floor coating projects
How to Use This Calculator
Enter Floor Dimensions
Input the length and width of the area you want to coat with epoxy in feet. Measure the floor area accurately for precise calculations.
Select Number of Coats
Choose the number of coats you want to apply (typically 2 coats for durability). More coats provide better protection but require more epoxy.
Choose Epoxy Type
Select the epoxy type you'll use: Standard (250 sq ft/gal), Premium (200 sq ft/gal), Self-Leveling (150 sq ft/gal), or Primer only (300 sq ft/gal). Coverage varies by type.
Calculate and Order
Click "Calculate Epoxy" to see gallons needed and estimated cost. Add 10-15% extra for waste. Order epoxy by gallons from suppliers.
Formula
Area (sq ft) = Length (ft) × Width (ft)
Gallons Needed = (Area ÷ Coverage per Gallon) × Number of Coats
Coverage: Standard = 250 sq ft/gal, Premium = 200 sq ft/gal, Self-Leveling = 150 sq ft/gal
Estimated Cost = Gallons Needed × Cost per Gallon
Example 1: Standard Epoxy (20 ft × 20 ft, 2 coats)
Step 1: Calculate area: 20 × 20 = 400 sq ft
Step 2: Calculate gallons: (400 ÷ 250) × 2 = 3.2 gallons (round up to 4)
Step 3: Add primer: 400 ÷ 300 = 1.33 gallons (round up to 2)
Step 4: Estimated cost: (4 × $60) + (2 × $40) = $320
Example 2: Premium Epoxy (30 ft × 30 ft, 2 coats)
Step 1: Calculate area: 30 × 30 = 900 sq ft
Step 2: Calculate gallons: (900 ÷ 200) × 2 = 9 gallons
Step 3: Add primer: 900 ÷ 300 = 3 gallons
Step 4: Estimated cost: (9 × $80) + (3 × $40) = $840
About Epoxy Calculator
The Epoxy Calculator is an essential tool for homeowners, contractors, and DIY enthusiasts who need to accurately determine how much epoxy is required for floor coating projects. This calculator eliminates guesswork by providing precise epoxy quantity calculations based on area, number of coats, and epoxy type, helping you order the right amount of epoxy without waste or shortages.
When to Use This Calculator
- Garage Floor Coating: Calculate epoxy needed for garage floor coating projects
- Basement Flooring: Determine epoxy quantities for basement floor applications
- Commercial Flooring: Calculate epoxy for commercial and industrial floor coatings
- Budget Planning: Estimate epoxy costs for floor coating projects
- Material Ordering: Order epoxy accurately based on floor area and coating requirements
Why Use Our Calculator?
- ✅ Accurate Calculations: Precise calculations prevent over-ordering or running short
- ✅ Multiple Epoxy Types: Supports standard, premium, self-leveling, and primer calculations
- ✅ Cost Estimation: Provides estimated costs based on epoxy type and quantity
- ✅ Multiple Coats: Calculates epoxy needed for multiple coats
- ✅ Primer Calculation: Includes primer needed (separate from epoxy)
- ✅ Time Savings: Instant calculations eliminate manual math and measurements
Common Applications
Garage Floor Coating: Homeowners and contractors coating garage floors use this calculator to determine epoxy quantities needed. Garage floors typically require 2 coats for durability and protection against vehicle traffic and chemicals.
Commercial Flooring: Contractors coating commercial and industrial floors use this tool to estimate epoxy quantities. Commercial applications often require premium or self-leveling epoxy for durability.
Budget Planning: Homeowners and contractors use this calculator to estimate costs for epoxy floor coating projects, helping plan budgets and compare epoxy types.
Tips for Best Results
- Add Waste: Always add 10-15% extra for waste, spills, and mistakes
- Multiple Coats: Most projects require 2 coats for durability (base + top coat)
- Primer First: Apply primer before epoxy for better adhesion
- Coverage Varies: Coverage depends on surface porosity, temperature, and application method
- Self-Leveling: Self-leveling epoxy requires more material but provides smoother finish
- Check Product Specs: Always check manufacturer coverage rates for your specific product
Frequently Asked Questions
How much epoxy do I need for a 20x20 garage?
For a 20×20 garage (400 sq ft) with standard epoxy and 2 coats, you need approximately 4 gallons of epoxy plus 2 gallons of primer. Total cost is approximately $320. Coverage varies by epoxy type and application method.
What's the difference between standard and premium epoxy?
Standard epoxy covers about 250 sq ft per gallon and costs around $60/gallon. Premium epoxy covers about 200 sq ft per gallon and costs around $80/gallon, but provides better durability and chemical resistance. Choose based on your needs.
Do I need primer before epoxy?
Yes! Primer is essential for proper epoxy adhesion. Apply primer before epoxy for best results. Primer typically covers 300 sq ft per gallon. The calculator includes primer calculations separately.
How many coats of epoxy should I apply?
Most projects require 2 coats (base coat + top coat) for durability and protection. For high-traffic areas or commercial applications, 3 coats may be recommended. Each additional coat adds protection but increases cost.
What is self-leveling epoxy?
Self-leveling epoxy is a thicker epoxy that flows and levels itself during application, providing a smoother finish. It requires more material (150 sq ft/gal) and costs more ($100/gallon) but provides the smoothest finish for floor coatings.
Should I add extra epoxy for waste?
Yes! Always add 10-15% extra for waste, spills, mistakes, and touch-ups during application. It's better to have extra than to run short mid-project. Round up to whole gallons when ordering.