Square Gas Fire Pits

Square gas fire pits from The Outdoor Plus and Fire by Design. Clean lines and equal sides make a square fire pit a strong centerpiece for modern patios, courtyards and seating areas built around right angles. Browse handcrafted designs in powder coat, stainless steel, Corten steel and hammered copper, offered for natural gas or liquid propane.

Why Choose a Square Fire Pit?

A square fire pit lines up naturally with the edges of a patio, the grid of pavers and the straight lines of outdoor sofas. Arrange seating on all four sides for a balanced, symmetrical layout, or place an L-shaped sectional along two sides and keep the others open for walking through. Because the sides are equal, every seat sits about the same distance from the flame.

The square shape also gives a generous flat ledge around the fire. It's a natural place to rest drinks, plates and decor, which makes square fire pits feel as much like a coffee table as a fire feature. Paired with contemporary furniture and architectural planting, a square fire pit gives a crisp, tailored look.

Designs in This Collection

• The Outdoor Plus – square fire pits such as Cabo Square, Forma, Gallaway, Quad, Redan and Vista, handcrafted in the USA and offered in powder coat, stainless steel, Corten steel and hammered copper, depending on the series.
• Fire by Design – the Midway 60-Inch Square Fire Pit.

Choosing the Right Size

Measure the area where the fire pit will sit, then plan for chairs, legs and walkways on every side you want to use. A larger square gives a bigger flame and a wider ledge, while a more compact square keeps the group close and suits smaller patios and courtyards. Think about how the fire pit will line up with the paving or deck boards: centering it on a joint or pattern makes the whole space feel planned.

Height is the other choice. Lower fire pits suit lounge chairs and deep seating, while taller models sit comfortably with dining-height or standard patio chairs. Each product page lists the dimensions and burning area published by the manufacturer.

Materials and Finishes

Powder coat offers a wide palette of colors with a durable baked-on finish that resists chipping and fading. Stainless steel stays bright and modern. Corten steel develops a protective rust-colored patina that deepens over time and suits natural, earthy gardens. Hammered copper adds warmth and handcrafted texture. Choose the finish that ties in with your furniture, planters and the materials of your home.

Plan the Gas Supply First

Every gas fire pit has a BTU rating that tells you how much gas the burner needs to reach its full flame. Pipe diameter, the length of the run from the meter or tank, and the number of fittings all affect how much gas reaches the burner, and an undersized line is the most common reason a fire pit never reaches its full flame height. Share the BTU rating listed on the product page with your gas professional so they can confirm the line size before installation.

Choosing an Ignition System

Many fire pits in this collection are offered with a choice of ignition. Match lit systems are the simplest and need no electricity. Flame sense systems add a safety valve that shuts off the gas if the flame goes out, and spark ignition lets you light the fire with a push of a button. Electronic ignition lets you control the fire from a switch, timer or home automation system. The available options are listed on each product page.

Natural Gas or Propane

Choose the fuel before you order. Natural gas and liquid propane versions are built with different components and are not interchangeable. Natural gas suits permanent installations close to an existing gas line, while propane runs from a tank and works where there is no gas line. Our Natural Gas vs. Propane guide explains the differences in more detail.

Ventilation and Drainage

Any enclosed gas fire pit needs ventilation so gas cannot collect inside the base. Propane is heavier than air and settles low; natural gas is lighter than air and rises. Follow the vent requirements in the manufacturer's installation instructions and your local code. Rainwater also filters down through the fire media, so make sure the fire pit has a path for water to drain away from the burner and gas components.

Finishing With Fire Glass or Lava Rock

Fire media hides the burner, spreads the flame and gives the fire pit its finished look. Fire glass adds color and sparkle that complements a square fire pit's modern lines, while lava rock gives a more natural look. Cover the burner evenly at the depth recommended in the installation instructions. Shop our fire glass and lava rock, and protect your fire pit between uses with a fire pit cover.

Professional Installation

All gas fire features must be installed by a qualified, locally licensed gas professional, following the manufacturer's installation instructions and your local building codes. Keep the clearances to combustible materials listed in the instructions, and do not place a gas fire pit under an awning, pergola or other overhead structure.

Need Help Choosing?

Not sure which size, finish or ignition suits your space? Read our guide on how to choose a fire pit, or contact us with your space, fuel type and seating plan, and we'll help you narrow it down. Prefer a different shape? Browse our round, rectangle and linear and specialty shape gas fire pits.

Frequently Asked Questions