Create a clean, safe and finished transition where your stove pipe meets a wall or ceiling with stove pipe flanges at Ace Hardware. These trim and support components help cover pass‑through openings, tidy up edges around venting and support proper clearances when connecting your stove pipe to approved chimney or flue systems.
What Is a Stove Pipe Flange?
A stove pipe flange (often called a trim collar or finishing flange) is a ring or plate that frames the point where your vent pipe passes through a wall thimble or ceiling support. Beyond looks, the right flange can help align sections, conceal gaps and pair with listed components that maintain required clearances to combustibles. Whether you’re installing a wood, coal or pellet stove with the appropriate venting type, choosing a flange that matches your pipe diameter and venting system keeps the job tidy and code conscious.
Types of Stove Pipe Flanges
Here is a quick snapshot of commonly available flange types at Ace.
- Split flanges: A split flange is a two piece ring that wraps around installed pipe. It is ideal for retrofits and it hides minor gaps without removing the pipe.
- Shallow flanges: A shallow flange provides low profile trim for a clean, close to the surface finish when clearances are already handled by the thimble or the support.
- Deep flanges: A deep flange uses a taller collar to bridge larger gaps or thicker finishes such as tile, stone or shiplap. Always confirm that the added depth will not interfere with listed clearances.
How to Choose the Right Flange
Use these quick considerations to match a flange to your stove, vent configuration and room design.
- Diameter compatibility: Select a flange that matches your pipe diameter. Mixing sizes can cause leaks and misalignment.
- System type: Use single wall or double wall stove pipe with wood stoves. Use listed pellet vent with pellet appliances so components seat and seal correctly.
- Application location: Choose a wall trim flange to finish a wall thimble. Choose a ceiling trim collar to cover a support box on flat or cathedral ceilings.
- Material: Select stainless steel or galvanized steel to match the venting system and the environment. Some installations also use plastic trim rings, which offer light weight and corrosion resistance where the manufacturer approves their use.
- Included hardware: Many kits include screws or snap tabs for a secure fit. Verify the fastener type and length for your wall thimble or support box.
- Air sealing: Where manufacturer approved, gaskets or high temperature sealants can reduce drafts. Only seal where specified in the installation instructions.
Shop Stove Pipe Flanges Near You at Ace Hardware
Find the stove pipe flanges near you that fit your system in store or online. Our helpful team can point you to the right diameter and finish, plus compatible chimney and flue parts like chimney caps, pellet stove vents, stove pipe tees and more. From first fit to final finish, Ace makes it simple to get the right venting components and the advice to install them with confidence.
