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Back Boxes - Single, Double, Plastic & Metal

Socket Back Boxes

Explore our affordable socket back boxes today - available in a range of depths and styles for easy, reliable, and safe installation. Order yours online today.


Check out our junction boxes collection for more amazing options.

What is a Back Box?

A back box, known as a mounting box or pattress box in some regions, is an essential component in electrical installations. 

Typically crafted from plastic or metal, it is a protective enclosure within walls to securely house electrical outlets or switches.

In electrical wiring, the back box acts as a safeguard, enclosing wiring connections and components to reduce the risk of accidents or damage. 

It ensures compliance with safety regulations and contributes to the longevity and reliability of the electrical system.

What Does a Back Box Do?

The primary role of a back box is to provide secure housing for electrical connections. 

By enclosing wires and components, it helps prevent hazards such as electrical fires or accidental contact. 

Additionally, back boxes contribute to the neat and professional appearance of electrical installations by concealing wiring within the wall.

In addition to safety considerations, back boxes also aid in sound insulation, reducing the transmission of noise between rooms. 

This feature is particularly good in residential or commercial settings where you’d expect better soundproofing.

What Types of Socket Back Boxes Are There?

Socket back boxes come in various sizes, depths, and materials to accommodate different electrical installations.

The main materials for back boxes are metal or plastic, while you’ll also have a choice of double or single back boxes to accommodate single or double sockets.

Finally, you’ll have a choice of sizing, with various depths available depending on what size you need, ranging from 16mm and 25mm to 47mm.

Plastic Socket Back Boxes

Made from durable plastic, these back boxes are lightweight and cost-effective. 

They're typically used in dry interior spaces. 

Plastic back boxes are great for standard installations where minimal exposure to moisture is expected. 

Their insulation properties make them a safe choice for reducing electric shock risks.

Metal Socket Back Boxes

Metal socket back boxes are ideal for environments requiring a bit more protection. 

They offer grounding capabilities and are often used in commercial settings or where additional fire resistance is necessary. 

Metal boxes are perfect for both light switch and power socket installations that require added durability.

Double Socket Back Boxes

Need to install two sockets side by side? You’ll need a double socket back box.

Available in both plastic and metal, double-back boxes allow you to house two sets of electrical connections in a single, neat unit.

Double socket boxes are especially popular in areas that require multiple plug points, like kitchens and offices.

Single Socket Back Boxes

A single socket back box is the perfect choice if you need to install just one socket.

Like double socket back boxes, they’re available in both plastic and metal.

Do Sockets Need a Back Box?

Yes, back boxes are essential when installing a switch or socket as they house the wires. A back box can minimise the risk of electrical hazards by protecting the wiring.

In addition to safety considerations, back boxes can make it easier to maintain and troubleshoot electrical systems. This is because the wiring is nearly contained within the wall, which makes it much easier to access the sockets or switches for repairs and upgrades.

How to Pick the Right Socket Back Box?

Firstly, you’ll need to decide the number of sockets or switches that need to be installed, as this will determine the size and configuration of the back box.

Single-back boxes are suitable for individual outlets, while double-back boxes accommodate multiple sockets.

Depth is another important aspect, as it determines the amount of space available for wiring within the box. 

You’ll need to pick the right depth, as it will prevent overcrowding of wire that will reduce the risk of damage and overheating.

Material choice is also important, with metal boxes offering better durability and protection compared to their plastic counterparts.

However, plastic boxes are more affordable and easy to install.

What’s the Difference Between a Pattress Box and a Back Box?

While the terms are sometimes used interchangeably, there are some differences between pattress boxes and back boxes. 

Pattress boxes are specifically designed for surface-mounted installations, where the box is affixed directly onto the wall surface.

In contrast, traditional back boxes are recessed into the wall cavity, providing a flush finish with the wall surface. 

Both types serve the same purpose of housing electrical outlets or switches securely, with the choice between them dependent on the installation requirements and how you want them to look.

How to Fit a Socket Back Box?

  1. Choose the Right Socket Back Box
    First, decide on the type of socket back box you need. Whether you're looking for a Double Socket Back Box or a Single Electrical Back Box, the choice largely depends on your specific requirements and wall type. Plastic back boxes are common for drywall installations, while metal boxes are suited for solid walls.
  2. Mark the Wall
    Use a pencil to mark where you want the Socket Box to go. Make sure it's level by using a spirit level. This step is important if you want a neat finish. 
  3. Cut the Hole
    If you're working with drywall, use a drywall saw. For brick or concrete, an angle grinder or masonry drill will be better. Always wear safety glasses and a dust mask. The hole should precisely fit the dimensions of your Socket Back Box.
  4. Thread the Cables
    Route the electrical cables to the hole you've just made. If it's a new installation, ensure the power is off at the mains. For renovations, you should extend existing cables.
  5. Install the Box
    Gently insert the Plug Socket Back Box into the hole. If you have a Plastic Back Box, it will typically have adjustable lugs that clamp onto the wall once screwed in. A metal back box might require fixing directly to the wall with screws and wall plugs for a secure fit.

 

  • Original price £0.66 - Original price £0.66
    Original price
    £0.66 inc VAT
    £0.66 - £0.66
    Current price £0.66 inc VAT
    £0.55 ex VAT

    Newlec NL8385/225 Moulded Surface Mounting Box Square Edge 2 Gang 25mm White

    Multiple knockouts provide flexible cable entry to suit the the installation • Solid brass earth terminal • 15 years guarantee • Solid brass ear...

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    Original price £0.66 - Original price £0.66
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    £0.66 inc VAT
    £0.66 - £0.66
    Current price £0.66 inc VAT
    £0.55 ex VAT
  • Original price £0.31 - Original price £0.31
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    £0.31 inc VAT
    £0.31 - £0.31
    Current price £0.31 inc VAT
    £0.26 ex VAT

    Newlec NLSL8385/125 Mounting Box Surface Slimline Curved Edge 1 Gang 25mm Moulded

    1-Gang Moulded Round Corner Slimline Box • BS 5733 • Multiple knockouts provide flexible cable entry • Fitted with earth terminals throughout •...

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    Original price £0.31 - Original price £0.31
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    £0.31 inc VAT
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    Current price £0.31 inc VAT
    £0.26 ex VAT
  • Original price £0.24 - Original price £0.24
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    £0.24 - £0.24
    Current price £0.24 inc VAT
    £0.20 ex VAT

    Newlec NL8385/116 Mounting Box Surface Square Edge 1 Gang 16mm White Moulded

    Multiple knockouts provide flexible cable entry to suit the the installation • Solid brass earth terminal • 15 years guarantee • Solid brass ear...

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    Original price £0.24 - Original price £0.24
    Original price
    £0.24 inc VAT
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    Current price £0.24 inc VAT
    £0.20 ex VAT
  • Original price £0.56 - Original price £0.56
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    £0.56 - £0.56
    Current price £0.56 inc VAT
    £0.47 ex VAT

    Schneider GPAT1G25 Exclusive 1-Gang Square Edge Moulded Pattress Box 87 x 87 x 25mm White

    Used to attach a switch or socket front plate to it and it also conceals the wiring. • Comes with a earth terminal

    Original price £0.56 - Original price £0.56
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    Current price £0.56 inc VAT
    £0.47 ex VAT
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    £0.68 ex VAT

    Schneider GU9225 Ultimate Slimline Surface Mounted Box 2 Gang

    High quality materials provide durability and practicality Fully plated earth strap for a corrosion free life In-line socket terminals for easy cab...

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    Original price £0.81 - Original price £0.81
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    £0.68 ex VAT
  • Original price £0.72 - Original price £0.72
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    £0.72 inc VAT
    £0.72 - £0.72
    Current price £0.72 inc VAT
    £0.60 ex VAT

    Newlec NLSL8385/225 Mounting Box Surface Slimline Curved Edge 2 Gang 25mm Moulded

    BS 5733 • Multiple knockouts provide flexible cable entry • Fitted with earth terminals throughout • Designed to complement the profile of the s...

    View full details
    Original price £0.72 - Original price £0.72
    Original price
    £0.72 inc VAT
    £0.72 - £0.72
    Current price £0.72 inc VAT
    £0.60 ex VAT
  • Original price £0.39 - Original price £0.39
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    £0.39 inc VAT
    £0.39 - £0.39
    Current price £0.39 inc VAT
    £0.33 ex VAT

    Greenbrook 116EB Box 1 Gang Extension 16mm Galvanised

    GreenBrook Electrical 116EB Norslo Box 1 Gang Extension 16mm Galvanised • Product: Box • Type: Flush • Corner Shape: Square • Fixings Included: N •...

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    Original price £0.39 - Original price £0.39
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    £0.39 - £0.39
    Current price £0.39 inc VAT
    £0.33 ex VAT
  • Original price £0.96 - Original price £0.96
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    £0.96 - £0.96
    Current price £0.96 inc VAT
    £0.80 ex VAT

    Newlec NL8385/247 Mounting Box Surface Square Edge 2 Gang 47mm White Moulded

    Multiple knockouts provide flexible cable entry to suit the the installation • Solid brass earth terminal • 15 years guarantee • Solid brass ear...

    View full details
    Original price £0.96 - Original price £0.96
    Original price
    £0.96 inc VAT
    £0.96 - £0.96
    Current price £0.96 inc VAT
    £0.80 ex VAT
  • Original price £1.36 - Original price £1.36
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    £1.36 inc VAT
    £1.36 - £1.36
    Current price £1.36 inc VAT
    £1.13 ex VAT

    Newlec NLSL8385/247 Mounting Box Surface Slimline Curved Edge 2 Gang 47mm Moulded

    BS 5733 • Multiple knockouts provide flexible cable entry • Fitted with earth terminals throughout • Stranded conductors 4.0mm -35.0mm

    Original price £1.36 - Original price £1.36
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    £1.36 inc VAT
    £1.36 - £1.36
    Current price £1.36 inc VAT
    £1.13 ex VAT
  • Original price £0.67 - Original price £0.67
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    £0.56 ex VAT

    Newlec NL8385/DUAL Mounting Box Surface Sqaure Edge 2 x 1 Gang 25mm White Moulded

    Multiple knockouts provide flexible cable entry to suit the the installation • Solid brass earth terminal • 15 years guarantee • Manufactured to...

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    Original price £0.67 - Original price £0.67
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    Current price £0.67 inc VAT
    £0.56 ex VAT
  • Original price £0.30 - Original price £0.30
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    £0.30 - £0.30
    Current price £0.30 inc VAT
    £0.25 ex VAT

    Newlec NLSL8385/116 Mounting Box Surface Slimline Curved Edge 1 Gang 16mm Moulded

    BS 5733 • Multiple knockouts provide flexible cable entry • Fitted with earth terminals throughout • Stranded conductors 4.0mm -35.0mm

    Original price £0.30 - Original price £0.30
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    £0.30 inc VAT
    £0.30 - £0.30
    Current price £0.30 inc VAT
    £0.25 ex VAT
  • Original price £0.88 - Original price £0.88
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    £0.73 ex VAT

    Newlec NLSL8385/147 Mounting Box Surface Slimline Curved Edge 1 Gang 47mm Moulded

    BS 5733 • Multiple knockouts provide flexible cable entry • Fitted with earth terminals throughout • Designed to complement the profile of the s...

    View full details
    Original price £0.88 - Original price £0.88
    Original price
    £0.88 inc VAT
    £0.88 - £0.88
    Current price £0.88 inc VAT
    £0.73 ex VAT
  • Original price £1.17 - Original price £1.17
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    £0.98 ex VAT

    MK Electric 861ZIC Box 1 Gang Flush 25mm Steel

    With earth terminal and adjustable lug, 12mm x 20mm knockouts • Height: 75mm • Material: Steel • Mounting Type: Flush • Voltage Rating: 220 - 240V ...

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    Original price £1.17 - Original price £1.17
    Original price
    £1.17 inc VAT
    £1.17 - £1.17
    Current price £1.17 inc VAT
    £0.98 ex VAT

Socket Back Boxes

Explore our affordable socket back boxes today - available in a range of depths and styles for easy, reliable, and safe installation. Order yours online today.


Check out our junction boxes collection for more amazing options.

What is a Back Box?

A back box, known as a mounting box or pattress box in some regions, is an essential component in electrical installations. 

Typically crafted from plastic or metal, it is a protective enclosure within walls to securely house electrical outlets or switches.

In electrical wiring, the back box acts as a safeguard, enclosing wiring connections and components to reduce the risk of accidents or damage. 

It ensures compliance with safety regulations and contributes to the longevity and reliability of the electrical system.

What Does a Back Box Do?

The primary role of a back box is to provide secure housing for electrical connections. 

By enclosing wires and components, it helps prevent hazards such as electrical fires or accidental contact. 

Additionally, back boxes contribute to the neat and professional appearance of electrical installations by concealing wiring within the wall.

In addition to safety considerations, back boxes also aid in sound insulation, reducing the transmission of noise between rooms. 

This feature is particularly good in residential or commercial settings where you’d expect better soundproofing.

What Types of Socket Back Boxes Are There?

Socket back boxes come in various sizes, depths, and materials to accommodate different electrical installations.

The main materials for back boxes are metal or plastic, while you’ll also have a choice of double or single back boxes to accommodate single or double sockets.

Finally, you’ll have a choice of sizing, with various depths available depending on what size you need, ranging from 16mm and 25mm to 47mm.

Plastic Socket Back Boxes

Made from durable plastic, these back boxes are lightweight and cost-effective. 

They're typically used in dry interior spaces. 

Plastic back boxes are great for standard installations where minimal exposure to moisture is expected. 

Their insulation properties make them a safe choice for reducing electric shock risks.

Metal Socket Back Boxes

Metal socket back boxes are ideal for environments requiring a bit more protection. 

They offer grounding capabilities and are often used in commercial settings or where additional fire resistance is necessary. 

Metal boxes are perfect for both light switch and power socket installations that require added durability.

Double Socket Back Boxes

Need to install two sockets side by side? You’ll need a double socket back box.

Available in both plastic and metal, double-back boxes allow you to house two sets of electrical connections in a single, neat unit.

Double socket boxes are especially popular in areas that require multiple plug points, like kitchens and offices.

Single Socket Back Boxes

A single socket back box is the perfect choice if you need to install just one socket.

Like double socket back boxes, they’re available in both plastic and metal.

Do Sockets Need a Back Box?

Yes, back boxes are essential when installing a switch or socket as they house the wires. A back box can minimise the risk of electrical hazards by protecting the wiring.

In addition to safety considerations, back boxes can make it easier to maintain and troubleshoot electrical systems. This is because the wiring is nearly contained within the wall, which makes it much easier to access the sockets or switches for repairs and upgrades.

How to Pick the Right Socket Back Box?

Firstly, you’ll need to decide the number of sockets or switches that need to be installed, as this will determine the size and configuration of the back box.

Single-back boxes are suitable for individual outlets, while double-back boxes accommodate multiple sockets.

Depth is another important aspect, as it determines the amount of space available for wiring within the box. 

You’ll need to pick the right depth, as it will prevent overcrowding of wire that will reduce the risk of damage and overheating.

Material choice is also important, with metal boxes offering better durability and protection compared to their plastic counterparts.

However, plastic boxes are more affordable and easy to install.

What’s the Difference Between a Pattress Box and a Back Box?

While the terms are sometimes used interchangeably, there are some differences between pattress boxes and back boxes. 

Pattress boxes are specifically designed for surface-mounted installations, where the box is affixed directly onto the wall surface.

In contrast, traditional back boxes are recessed into the wall cavity, providing a flush finish with the wall surface. 

Both types serve the same purpose of housing electrical outlets or switches securely, with the choice between them dependent on the installation requirements and how you want them to look.

How to Fit a Socket Back Box?

  1. Choose the Right Socket Back Box
    First, decide on the type of socket back box you need. Whether you're looking for a Double Socket Back Box or a Single Electrical Back Box, the choice largely depends on your specific requirements and wall type. Plastic back boxes are common for drywall installations, while metal boxes are suited for solid walls.
  2. Mark the Wall
    Use a pencil to mark where you want the Socket Box to go. Make sure it's level by using a spirit level. This step is important if you want a neat finish. 
  3. Cut the Hole
    If you're working with drywall, use a drywall saw. For brick or concrete, an angle grinder or masonry drill will be better. Always wear safety glasses and a dust mask. The hole should precisely fit the dimensions of your Socket Back Box.
  4. Thread the Cables
    Route the electrical cables to the hole you've just made. If it's a new installation, ensure the power is off at the mains. For renovations, you should extend existing cables.
  5. Install the Box
    Gently insert the Plug Socket Back Box into the hole. If you have a Plastic Back Box, it will typically have adjustable lugs that clamp onto the wall once screwed in. A metal back box might require fixing directly to the wall with screws and wall plugs for a secure fit.

 

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