The Perfect Fireplace Size Below Your TV: A Quickfire Guide

The Perfect Fireplace Size Below Your TV: A Quickfire Guide

Design-first tips (in metric + inches) to nail that seamless media wall.

One of the most common questions we hear is: “How big should my fireplace be if my TV is X size?” The answer blends aesthetics and practicality—get the proportions right and your media wall looks intentional, balanced, and beautifully minimal.

Media wall illustration showing a TV with a linear fireplace below; rule: fireplace same width or slightly wider than the TV
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Design rule: Fireplace = same width or slightly wider than your TV.

Rule of Thumb

Aim for the fireplace to be at least the same width as your TV—or ideally 5–20 cm (2–8″) wider. This gives you depth for a recessed build (strip lighting, tidy cable runs) and a clean visual line where the outer edges align.

Mind the Measurements 📏

  • TV sizes are measured diagonally.
  • Fireplaces are measured by actual width.

Always confirm final dimensions in your TV + fireplace manuals before ordering or building.

Quickfire TV and fireplace pairing infographic with three clear size matches
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Quickfire size guide (metric + inches) for a balanced look.

TV → Fireplace Pairings

  • 55″ TV → 128 cm / 50″ fireplace
  • 65″ TV → 153 cm / 60″ fireplace
  • 75″ TV → 180 cm+ / 74″+ fireplace

Use as a guide—brands and models vary slightly.

Match the Room (Not Just the TV)

A petite fireplace can disappear in a large space, while an oversized one can overpower a compact room. Consider both the room size and the wall width where your media wall will sit.

Quick rule: Big room, big fire. Small room, smaller fire—just not too small.

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