Understanding Electrical Specifications for Your Self-Build Garden Room

Everything You Need To Know…

A self-build garden room is an easy, budget friendly, and beautiful way to expand your living space. Whether you’re creating a home office, a home gym, guest room, or a creative studio it’s a great way to reach the full potential of your outdoor space. Our wide range of self-build garden rooms are easy and quick to assemble thanks to our easy installation panel design, and are fully insulated garden rooms, meaning you can use them all year round. Plus, usually you don’t need planning permission so you could have your dream garden room in less than 4 weeks!

Adding electricity to your garden room can give you limitless possibilities for your space, but it’s important to understand what you need and spend some time planning.

How to self-build your own dream Garden Room

In this post, we’ll guide you through the key electrical specifications needed for a garden room and provide practical advice on working with an electrician to get your space up and running.

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The Importance of Proper Electrical Planning

Whether you’re looking to power basic lighting and sockets, or more demanding equipment like underfloor heating and gaming systems. When planning the electrics for your self-build garden room you should consider the following:

  • Ensure that you get the specifications that you need, so your Garden Room functions how you planned.
  • Consider where in the room you need outlets and lights to avoid last minute decisions you might regret! Think about gym equipment, desk placement, and try to sketch out your thoughts.
  • Ensure that your electrics are installed at the right time in the process to avoid delays to your build.
  • Ensure your electrics are safe, and that they aren’t going to be overstretched.
  • Find the right electrician for you, and avoid compromising.

Not sure how best to design your garden room yet?
Check out some real life garden room inspiration here >>

Tips for Choosing the Right Electrician

Selecting the right electrician is crucial for ensuring your garden room’s electrical system is safe, efficient, and meets all your needs. Here are some tips to help you choose wisely:

  • Seek Recommendations: Start by asking friends, family, or other trusted tradespeople for recommendations. Personal referrals often lead to reliable and trustworthy professionals.
  • Check Reviews: Take the time to read online reviews and testimonials for any electrician you’re considering. This will give you insight into their reputation, quality of work, and customer service.
  • Communicate Your Needs Clearly: Be upfront with your electrician about how you intend to use your garden room. Even if you aren’t sure yet, it’s best to tell them all what your wish list is. Whether you need basic lighting, multiple power sockets, or specialised installations like underfloor heating, clear communication ensures that your garden room will be equipped to meet your needs.
Electrical Specifications for Your Self-Build Garden Room - Hand

The Timeline for Installing Electricity:

  • Source Your Electrician: before you start the build, understand when your electrician will be available.
  • Installation Timing: Make sure your build will be ready for your electrician, e.g.: at least the foundation and panels are installed.
  • Installation Time: Typically, installing electricity in a garden room takes between half a day and a full day, depending on the complexity of the setup.

Luckily at Pent Haus, our electrical pack which can be installed even after your interior finish is installed due to the Pent Haus’ unique construction! So there’s no need to stress if your electrical installation doesn’t line up with the build.

Choosing the Specifications for Your Garden Room

The type of electrical cable you’ll need depends on several factors, including the distance from your house to the garden room and the amount of power your garden room will require.

  • For Basic Electrical Needs (Short Runs): If your garden room will primarily be used for lighting and standard power outlets, and the distance from your home to the garden room is less than 50 metres, a 6mm 3-core Armoured Cable is generally sufficient. This setup is ideal for spaces that won’t require heavy electrical loads.
  • For Higher Energy Demands (Longer Runs): If your garden room will house equipment with higher energy demands—such as underfloor heating, a music studio, or gaming systems—or if the cable run exceeds 50 metres, a 10mm 3-core Armoured Cable is recommended. This thicker cable ensures that your garden room receives a stable and safe supply of electricity, even under heavier loads.

Installing Electrics to Your Garden Room: What You Need to Know

While the assembly of your garden room is a straightforward process that can be completed in just two days, electrical work requires the expertise of a qualified electrician. Here’s what you need to know:

  • The Role of your Electrician: You’ll need to find and hire a qualified electrician to install the electrical components of your garden room. The electrician will not only install the necessary wiring but will also source materials like the appropriate cable, usually from local suppliers. It’s wise to reach out to an electrician early in the project, ideally before you start the build. This way, they can advise on the best electrical setup and be ready to start work as soon as the garden room is assembled.
  • The Installation Process: The process is generally non-invasive; most of the time, the cable can be clipped to a fence or the edge of a wall, keeping disruption to your garden to a minimum. In some cases, the cable may need to be buried, but this is less common.
  • Additional Electrical Components: In addition to the main cable, your electrician will need to install a small switchboard in the garden room. This switchboard is not included in standard electrical packs, as its specifications depend on the setup of your main house board. It’s also worth considering whether you’d like to control other outdoor lighting from your garden room, which your electrician can help integrate into the setup.

Unlock the Full Potential of Your Garden Room

Understanding and planning the electrical specifications of your self-build garden room is a critical step in creating the perfect garden room. With the right setup, your garden room can become a year-round retreat that works perfectly for you. Plus, our self build garden rooms are cost effective, low maintenance and less complex than a traditional home extension!

By working closely with a qualified electrician and following the guidelines outlined above, you can ensure that your garden room is not only safe and efficient but also perfectly tailored to your lifestyle.

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