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Internal Corner Trim

Internal corner trims are indispensable finishing components that play a crucial role in improving the visual appeal and functionality of a property’s interior. These trims are designed to address the challenging corners found in places such as the bathroom and kitchen. By cleverly hiding gaps, rough edges, or imperfections, internal corner trims create a harmonious, unified look throughout your space. At MB DIY, we offer high-quality Internal Corner Trim, including a 1 Part and a 2 Part Internal Corner Trim in various colours. Beyond their aesthetic advantages, internal corner trims serve as a protective barrier against damage, moisture, and dirt accumulation. They reinforce vulnerable corner areas, prolonging the lifespan of your walls and ceilings while also preventing the growth of mould and mildew. As a result, integrating internal corner trims into your property not only enhances its visual appeal but also promotes a healthier, more durable living environment.


How to Use an Internal Corner Trim

Installing internal corner trims may seem like a daunting task, but with the right approach and a few essential tools, you can achieve a professional finish with ease. The following step-by-step guide will help you successfully install internal corner trims in your space:

  • Prepare the area: Start by cleaning the corner where you plan to install the trim. Remove any dust, debris, or loose paint to ensure a clean, smooth surface for better adhesion.
  • Measure and cut: Accurately measure the length of the corner where you’ll be installing the trim. Using a fine-toothed saw or a mitre box, carefully cut the trim piece to the appropriate size, making sure the edges are straight and clean.
  • Dry fit: Before applying any adhesive, do a dry fit to ensure that the trim fits snugly into the corner and sits flush against both adjoining surfaces. Make any necessary adjustments to the trim length for a perfect fit.
  • Apply adhesive: Choose a suitable adhesive based on the trim material and wall surface. Apply a thin, even layer of adhesive to the back of the trim, paying particular attention to the edges to prevent gaps or lifting.
  • Allow for Curing Time: To speed up the curing process, you can tack the adhesive in place. This will help ensure that it sets properly and that you can move forward with the installation sooner.
  • Install the trim: Press the trim firmly into the corner, ensuring it aligns correctly with both adjoining surfaces. Adjust the trim as needed, applying even pressure along its length for optimal adhesion.
  • Use silicone: When installing trims in a bath area or a shower area, it is recommended to use a silicone seal to ensure a water-tight seal before pushing your panel into the trim.

By following these steps, you’ll be able to install internal corner trims with confidence, enhancing the aesthetics and durability of your space.

Difference Between a 1 Part & 2 Part Internal Corner Trim

Choosing the right internal corner trim for your space is essential. It all comes down to understanding the difference between the two main types: a 1 Part and 2 Part trims. Here’s what you need to know:

1 Part Internal Corner Trim:

  • Easy installation: 1 Part Internal Corner Trim is designed as a single piece, making them easy to install and manipulate into place. This makes them an excellent choice for DIY enthusiasts who want a hassle-free installation process.
  • Flexibility: 1 Part Internal Corner Trim is typically made from flexible materials like PVC, which can be bent and shaped to fit any corner. This makes them an ideal choice for tricky corners where a rigid trim may not fit properly.
  • Cost-effective: Because it is made from a single piece of material, 1 Part Internal Corner Trim is generally more cost-effective than their two-part counterparts. This makes them a budget-friendly option for those who want a professional finish without breaking the bank.

1 Part Internal Corner Trims are a great choice for those who want a simple and easy installation process. These trims are designed as a single piece that fits into the corner between the two walls. Made from flexible materials like PVC, they are easy to manipulate and bend into place. This makes them an excellent choice for those working on a tricky corner.

2 Part Internal Corner Trim:

  • Simplify Installation: With a 2 Part Internal Corner Trim, the backing is installed first, providing a definite corner for panel installation.
  • Gain Extra Tolerance: 2 Part Internal Corner Trim has a larger front than a silicone bead, providing more leeway for panel cutting and any slight measurement errors.
  • Make Panel Installation a Breeze: Unlike 1 Part Internal Corner Trim, 2 Part Internal Corner Trim allow for easy installation of the last panel on the wall as space is often tight in the corner. Simply clip the panel over the back of the trim and snap the front on.
  • Enjoy Versatility: 2 Part Internal Corner Trim can be clipped in from 5mm to 10mm, making them suitable for a wide range of panels. One-piece trims are usually a set size and limit your options.

While 2 Part Internal Corner Trim may cost a bit more, it’s worth every penny. The trim is made up of two pieces, with one attached to the wall prior to panel installation, saving you valuable space. Plus, it offers improved aesthetics, increased durability, and easier maintenance. So why settle for a single-piece trim when you can elevate your bathroom with a two-part internal corner trim?

Internal Corner Trim in Various Colours

Internal corner trims are available in a diverse range of colours and finishes. As a result, you’ll be able to make your home seem exactly as you want it. The array of colour options ensures that you can find the perfect trim to complement and enhance your decor, reflecting your unique style and trend.

  • White internal trims: A popular choice due to their versatility and timeless appeal. They can easily blend with a variety of design styles, from traditional to contemporary, and their neutral tone helps create a clean, spacious feel in any room.
  • Black and chrome internal trims: Bring a touch of sophistication and modernity to your space. These sleek, bold options make a strong design statement and work exceptionally well in contemporary interiors, adding contrast and depth to your corners.
  • Beige internal trims: Offers a more subdued, neutral alternative that suits a wide range of design styles. These trims can subtly enhance your space without drawing too much attention, creating a warm, inviting atmosphere. Beige trims are particularly suitable for rooms with a natural or earthy colour palette.

Aside from these popular colours, internal corner trims may also be available in other hues and finishes to accommodate specific design requirements or preferences. Some manufacturers even offer custom colour matching services, ensuring that your trims perfectly align with your desired aesthetic.

The Secret to Achieving a Professional Look: Internal Corner Trim

Internal Corner trims are an absolute must-have for anyone looking to achieve a flawless and professional finish in their space. With a wide range of styles, colours, and materials to choose from, you can easily find the perfect trim to match your design preferences and specific needs. These trims are the secret ingredient to making your walls look perfect, whether you’re working on a DIY project or a large-scale renovation.

Not only do internal corner trims provide an aesthetically pleasing finish, but they also protect your walls from wear and tear. They’re an essential element in creating a functional and beautiful space that you can enjoy for years to come.

At MB DIY we offer the most durable Internal Corner Trim, in various sizes and colours to suit your specific needs and design preferences.

In case you require assistance in selecting the most suitable one, please feel free to reach out to our sales team who are ready and available to assist you.


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2 Part 5mm Universal Corner – Black

Due to length & size restrictions with our delivery partners, we are currently only able to deliver certain items to the following postal areas:

  • All TS postcodes
  • All NE Postcodes
  • All DL Postcodes
  • All DH Postcodes
  • All SR Postcodes

We are looking into increasing our postcode range gradually with our own fleet of vehicles.
Should you not want to opt for a delivery service, please be aware Click and Collect is still available on all of our items.

We aim to despatch all of our orders within 24-48 hours of order confirmation, during peak times or bank holidays this despatch time can occasionally be increased.

Should you have any queries regarding this please don’t hesitate to call our sales team on 01642 455945.


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