Shiplap cladding is known for its overlapping profile that creates a subtle shadow line, adding depth and character to your project. Its design helps protect against the elements by providing excellent water runoff, making it ideal for outdoor applications. It’s easy to install, durable, and suits a wide range of architectural styles.

Tools & Materials You'll Need

• Shiplap cladding boards
• Treated timber battens
• Fixings (use stainless steel screws or nails to prevent corrosion)
• Breathable membrane
• Drill or nail gun
• Saw (hand or power)
• Spirit level and tape measure
• Weatherproof finish
• Safety gear/PPE

Step 1: Surface Preparation

Start by preparing the wall where the cladding will be installed.

• Inspect the surface: Ensure it’s clean, dry, and structurally sound.
• Attach a weatherproof membrane: Temporarily secure it with tape, then fix it properly with galvanized staples, nails, or screws with washers. This will act as a moisture barrier and promote ventilation.

Step 2: Install the Battens

Treated timber battens are essential for creating a framework to support your cladding.

• Measure and mark: Position vertical battens for horizontal shiplap cladding.
• Spacing: Space battens 400–600mm apart and add extra battens around windows, doors, and corners for reinforcement.
• Secure battens: Use screws or fixings suitable for your wall type to firmly attach them.

Step 3: Prepare the Shiplap Boards

• Inspect your boards: Check for any defects and allow the boards to acclimate to site conditions for 5–7 days. This minimises movement after installation.
• Cut to size: Use a saw to cut the boards to the required length, leaving a 2mm gap at edges for expansion.

Step 4: Start Cladding

Now you’re ready to begin installing the boards!

• Start at the bottom: For horizontal shiplap, begin with the first board at the base of the wall.
• Position correctly: Ensure the overlap of the boards faces downward to shed water.
• Check alignment: Use a spirit level to ensure the first board is perfectly straight.

Step 5: Fix the Boards

• Secure the first board: Fix the board to the battens using stainless steel screws or nails. Place the fixings through the overlapping edge for a discreet finish.
• Overlap and repeat: Install the next board so it overlaps the first, creating a consistent shadow line. Repeat until the wall is covered.

Step 6: Finishing Touches

• Cut to fit: Neatly trim boards around windows, doors, and other openings for a polished look.
• Add trims and mouldings: Use corner trims and edge mouldings to give the installation a professional finish.

Step 7: Protect Your Timber

To enhance the durability and appearance of your shiplap cladding:

• Apply a protective finish: Use an oil, stain, or paint to preserve the timber’s natural colour and protect against weathering.
• Reapply as needed: Regular maintenance will keep your cladding looking great for years to come.