Safe use of fire pits on patios – tips for wood and WPC

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Safe use of fire pits on patios – tips for wood and WPC

Expert tips and recommendations for suitable surfaces

1 Why special caution is required on terraces

Sitting around a fire with family or friends on warm evenings creates a unique atmosphere. A fire pit on terraces in particular significantly extends the outdoor season. However, if your terrace is made of wood or composite materials (e.g. WPC, Trex), special caution is required.

2 Choosing the right fire pit for your terrace

If you are looking for a safe and suitable solution, here you will find an overview of suitable fire pits for terraces that are specifically designed for wooden and composite decking.

2.1 Material

  • Metal: Lightweight and mobile, but with high heat conductivity – always use with a heat protection mat.
  • Stone or brick: Very heat-resistant, ideal for permanently installed models.
  • Concrete (GFRC) : Modern, weather-resistant and durable – perfect for terraces.

💡 Also read our article comparing materials: concrete vs. stainless steel fire pits for further tips on choosing the right material.

2.2 Size and shape

    Size: When placing a fire pit on a terrace, its size should be carefully considered. A model that is too large can cause deformation or cracking of the decking surface, while one that is too small may not provide enough warmth. Choosing the right fire pit size increases comfort and safety – further guidance is provided by our fire pit size guide , which helps you find the ideal dimensions for your terrace.

  • Round or square shapes are suitable for smaller areas, while rectangular fire tables are better for larger spaces.

2.3 Ignition system

  • Manual ignition: Cost-effective, but requires careful handling.
  • Push-button ignition: Safe and convenient at the push of a button.
  • Electronic ignition: Automatic control with safety shut-off – the most modern and safest solution.

2.4 Fuel

For terraces, we recommend propane or natural gas fire pits , as they provide clean, consistent and safe combustion.

  • Wood-burning fire pits: Produce sparks and intense heat – not recommended on wooden decks.
  • Gas fire pits: Clean, smokeless and safe – perfect for urban or smaller outdoor areas.
Wood-burning fire pit example Gas fire pit example

3 Positioning the fire pit correctly

  1. Distance from buildings: Gas fire pits at least 1.5–3 m, wood-burning fire pits 3–7 m.
  2. Seating distance: Keep around 1–1.5 m between the flame centre and seating area.
  3. Heat protection and ventilation: A non-combustible base or platform under the fire pit is essential; ensure good air circulation and avoid direct contact with the decking.

4 Safety tips for daily use

  • Use a fire protection mat or a metal base under the fire pit.
  • Keep a fire extinguisher, garden hose or container of sand nearby.
  • Use only dry fuel or clean gas.
  • Never leave the fire pit unattended.

4.2 Avoid

  • Do not use petrol or alcohol as fire starters.
  • Do not operate in strong wind or extreme dryness.
  • Keep children and pets away.
  • Dispose of ash only when it has completely cooled.

5 Suitable surfaces for fire pits

Surface Safety Recommendation
Concrete ✅ Very safe Heat-resistant, stable, easy to maintain.
Stone / brick ✅ Recommended Good heat dissipation, high stability.
Metal base + heat protection mat ⚠️ Acceptable Only with an additional insulation layer.
Wood / plastic / composite material ❌ Not recommended Risk of fire and deformation due to heat.

Tip: Even with gas fire pits, always use a fire-resistant base or a heat shield to prevent damage to the decking.

6 Examples of safe gas fire pits for terraces

Now that you know the key safety rules, here are some examples of propane and natural gas fire pits that are particularly suitable for wooden or composite terraces. They are made from glass-fibre-reinforced concrete (GFRC), which is heat-resistant, stable and weatherproof.

6.1 Elementi Manhattan

Modern rectangular design made of GFRC concrete, available in dark grey or light grey, with an elegant travertine look. Clean operation with propane or natural gas – ideal for medium-sized terraces and clear architectural layouts.

Elementi Manhattan gas fire pit made of concrete – dark grey / light grey travertine look

6.2 Elementi Granville

Made from high-quality GFRC concrete with weather-resistant, heat- and rust-resistant properties. Its substantial weight ensures excellent stability and it is CSA-certified – perfectly suited for wooden or composite terraces.

Elementi Granville gas fire table made of concrete

6.3 Elementi Athens

Large-format fire table with a robust GFRC concrete base and an elegant sintered ceramic tabletop (porcelain/ceramic composite) – resistant to heat, scratches and weather. Output approx. 55,000 BTU; dimensions 157 × 100 × 76 cm. Ideal as a central meeting point for spacious terraces or semi-commercial outdoor areas – modern design meets high safety.

Elementi Athens fire table – GFRC concrete with sintered ceramic top, 55,000 BTU, 157×100×76 cm

6.4 Modeno Roca

Round shape with soft lines, compact and lightweight. Electronic ignition, operated with propane or natural gas, output approx. 45,000 BTU. Perfect for smaller terraces or balconies – cosy and easy to move.

Modeno Roca round fire pit – propane/natural gas, 45,000 BTU

6.5 Elementi Lafite Barrel Bar

Bar and standing table with fire in a striking fire barrel / barrel design: robust GFRC concrete with a distinctive wood-look texture – durable and weather-resistant. Ideal as a bar table / standing table for bars, restaurant entrances or event areas; combines visual impact with functionality. (Gas-powered; perfect for atmospheric outdoor zones.)

Elementi Lafite Barrel Bar – bar/standing table with fire, GFRC concrete in wood look

7 Conclusion: safety and style in harmony

Safety does not mean sacrificing aesthetics. With the right material (e.g. GFRC concrete), sufficient clearance and a stable base, you can enjoy an elegant and safe fire pit on your terrace.

Remember three basic rules: no direct contact with wooden surfaces, good ventilation and safety distances, and never leave fire unattended. This way, the flames become a safe and atmospheric focal point of your outdoor space.

8 Frequently asked questions (FAQ)

Can I use a fire pit on a Trex or WPC deck?

Yes, provided a heat-resistant base is used and the fire pit is positioned with sufficient ventilation.

Is a gas fire pit safe on a wooden terrace?

Yes. A gas fire pit does not produce sparks and generates less radiant heat than a wood fire. A heat shield or platform should still be used to protect the decking.

May I use a wood-burning fire pit?

Only with a raised stand and a heat protection plate. Always be aware of flying sparks – do not use directly on wood or WPC.

Do I need a permit?

This depends on local regulations. The fire brigade or local authority can provide information on applicable fire safety rules.

Can I use a glass wind guard – and does it improve the flame?

Yes, a glass wind guard stabilises the flame pattern, protects against wind and can reduce gas consumption by preventing the flame from cooling too quickly. It is a particularly useful addition on open terraces.

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