Transform Your Plywood Subfloor with Epoxy Floor Coating for Stunning Results

Epoxy floor coatings are no longer just for industrial spaces or garage floors. With the right techniques, you can transform a mundane plywood subfloor into a stunning, durable surface that elevates any room. This blog post walks you through a detailed process, from preparation to the final coat, to achieve an amazing epoxy floor coating on a plywood subfloor.

Subfloor Preparation: The Foundation of Success

Before diving into the epoxy application, it’s crucial to prepare the subfloor. Start by thoroughly cleaning the plywood surface, ensuring it’s free from dirt, debris, and protruding nails or screws. This step is vital for a smooth application and flawless finish.

Choosing the Right Epoxy System

Selecting the appropriate epoxy flooring system is critical. Various options are available, each suited for different environments and aesthetics. For this project, a metallic epoxy system was chosen for its striking finish and resilience.

Filling the Gaps: Ensuring a Smooth Base

Applying a crack filler to the gaps in the plywood is essential for creating an even surface. This step not only improves the appearance but also enhances the longevity of the epoxy coating.

The Primer: A Flexible Foundation for Wooden Subfloors

A flexible epoxy primer is perfect for plywood, accommodating the natural movement of the wood. This primer acts as a robust base for the subsequent epoxy layers, ensuring a durable bond.

Mixing and Saturating Metallic Epoxy Pigments

Mix your chosen metallic epoxy pigments carefully, allowing them to saturate overnight. This process ensures a rich, consistent color throughout the application.

Applying the Epoxy: Technique Matters

The application process involves spreading the mixed epoxy evenly across the floor. Use a squeegee for a thin, uniform layer, followed by a roller to smooth out any lines or ridges. Precision in this step is key to a professional-looking finish.

Creating the Metallic Effect: Artistry in Action

The metallic effect is achieved by adding small amounts of a darker accent epoxy. Swirl these into the base coat to create a stunning, blended finish. The beauty of this technique lies in its versatility, allowing you to customize the look to your preference.


Epoxy flooring over a plywood subfloor is not just a practical choice but also an artistic endeavor. With the right approach, you can achieve a floor that’s not only durable and easy to maintain but also a true statement piece in your home.

🧰🛠 Tools and Materials Used:
Learn how to apply an epoxy floor coating over a plywood subfloor with this DIY epoxy floor coating installation!

I applied a metallic epoxy floor coating over my shed’s plywood subfloor but this same application method can be used for any plywood subfloor (bathroom, bedroom, basement, etc.).

Below are the steps you will need to follow to effectively apply an epoxy flooring system to a plywood subfloor.
00:00 – Introduction
– Prepare the Plywood Subfloor for Epoxy Application.
– Select Epoxy Floor Coating System and Products.
– Fill all Plywood Gaps, Cracks, etc. with Epoxy Crack Filler
– Apply Flexible Epoxy Primer
– Apply Waterborne Epoxy Primer
– Prepare and Mix Epoxy Color Pigments into Epoxy Resin
– Mix Part A and Part B of the Epoxy Floor Coating System
– Apply Epoxy Coating to the Plywood Subfloor Application Area
– Apply the “Accent Color” Epoxy (if applicable)
– Apply Protective Urethane Top Coat (Optional)
– Finishing Touches

I am super happy with the Epoxy Floor Coating result I achieved within my shed. It completely transformed the plywood subfloor into an eye-catching and durable shed floor.

Get the Shed Plans and Course Materials! ⬇️

For additional information on applying an epoxy flooring to a plywood subfloor, check out my blog article linked here:…

In addition to the tools linked above, here is the Epoxy I used:
1. Drill:
2. Drill Mixer:
3. Latex Gloves:
4. Painter’s Tape:
5. For the Epoxy Products Used, check out my Blog Article (…) and

Check out my other videos in the”Modern Shed Build Youtube Series”.

Introduction to the Modern Shed Series:    • I Transformed my Shed (and so can you…  
Shed Foundation Options:
   • Shed Foundation Options (Concrete Sla…  
How to Build and Frame a Shed Floor:
   • How to Build a Shed Floor (DIY Shed F…  
How to Frame Shed Walls:
   • How to Frame Shed Walls (Complete DIY…  
How to Frame a Shed Roof:
   • DIY Shed Roof Framing (How to Build a…  
How to Install Shed Siding:
   • How to Install Shed Siding (T1-11 and…  
How to Install Shed Sheathing:
   • Shed Sheathing Installation (How to I…  
How to install Shed Trim:
   • How to Install Shed Trim (DIY Shed Tr…  
Inexpensive Shed Window Option (Acrylic):
   • Inexpensive Shed Window Option (Acryl…  
How to Install a Shed Window:
   • How to Install a Shed Window (Step-by…  
How to Install Shed Siding Veneer:
   • LVP Flooring as Shed Siding (Crazy Id…  
How to Install a Roll-Up Door:
   • How to Install a Roll Up Door on a Shed  
How to Build a Shed Ramp:
   • How to Build a Simple SHED RAMP (Step…  
How to install asphalt shingles on a shed roof:
   • How to Install Asphalt Shingles on a …  
How to Add Electricity to a Shed:
   • Shed Electrical Installation (How to …  
How to Organize Your Shed Storage:
   • Shed and Garage Storage Idea (How to …  

Be sure to subscribe and hit the notification bell so you don’t miss any videos in the Modern Shed Build Series!

If you want to learn how to build the EXACT shed shown in the video, I put together “The Modern Shed Build Course” ( which includes a materials list🧱, tools list 🛠, and cut list 🪚for each step of the entire shed build process. Basically, this course makes it feel like you built this shed alongside me! Every purchase helps support the channel!

Follow me on Instagram:   / atimprovements  
Check out my Blog:
Subscribe to my YouTube Channel ⬇️…
Check out my Website for additional DIY Content:

Camera (Iphone Max):
Microphone (Maono Condenser Mic):
Mini Tripod:

Carbide Tipped Drill Bit:
Tapcon Screws:
Tape Measure:
Circular Saw:
Masonry Drill:
Chalk Line:
Circular Saw:
Jig saw:
Air Compressor:
Framing Nailer:
Roofing Nailer:
Orbital Sander:
Bar Clamps:

Thank you so much for watching!

I also want to extend a HUGE THANKS to Spartan Epoxies!

*All content on the Andrew Thron Improvements YouTube channel reflects my own opinions. Please seek out guidance of professionally trained and licensed individuals before making any decisions.
Links in the description may be affiliate links.

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