How to Build Your Own Walk-in Cooler

Find here 3 different guides for a DIY walk-in cooler room:

1. A DIY Eco-Room (interior) or Shed-Style Cooler (outdoor) built by us.
2. A DIY Restaurant Cooler in a Maine basement from a CoolBot customer.
3. A DIY Cold Room built by the University Of Kentucky.

Remember to choose and size the right A/C for your walk-in cooler following our Air Conditioner Selection Guide!

1. DIY Eco-Room/Shed Style Walk-In Cooler

2. A DIY Restaurant Walk-In Cooler in a Maine Basement

This Maine restaurant has build a great 10' x 12' walk-in cooler for under 4K! 

PLEASE do not contact them with questions regarding their build. If you have questions, please contact us and we can try and answer them for you.

3. University Of Kentucky DIY Cold Room

Note - we DO NOT RECOMMEND USING FIBERGLASS BATT FOR INSULATION!
However, if you are stuck with fiberglass batt for some reason, these plans are a great example of how to use it in a cooler. University of Kentucky did a great job drawing up and breaking down the detailed instructions for this cooler design. For anyone that is going to use these instructions, we recommend using at least another 3/4 inches of rigid foam insulation for a total of at least 1-1/2 inches. This can be added to the outside or inside of the cooler. Whichever way you go, make sure that you seal the seams completely to stop the moisture from getting into that fiberglass. If you’re using this plan, we strongly recommend adding a continuous sheet of polyethylene (carpenters plastic from Home Depot) installed as a vapor barrier between the fiberglass insulation and outside air.

PLEASE do not contact them with questions regarding their build. If you have questions, please contact us and we can try and answer them for you.