Few materials give a home the warm, natural character of timber. If you're planning a renovation or new build, cypress cladding is a smart choice for Australian conditions. This guide walks you through the installation process from start to finish, with practical tips to help you get a lasting result.

What Is Cypress Cladding?

Cypress cladding is made from Australian native cypress pine (Callitris), a softwood known for its natural termite resistance, stability and distinctive honey-toned grain with characteristic knots. It suits our harsh climate well, making it popular for exterior cladding and feature walls alike.

What You Need Before You Start

Gather your materials and tools first:

• Cypress cladding boards (order 10% extra for waste)

• Breathable wall wrap or sarking

• Treated pine or hardwood battens

• Stainless steel or hot-dip galvanised nails

• Insect mesh and starter trim

• Spirit level, mitre saw, nail gun, measuring tape

• Timber primer and sealant or oil finish

How to Install Cypress Cladding

Step 1: Acclimatize the Boards

Store boards on site for 5–7 days, stacked flat with spacers and out of direct sun and rain. This lets the timber adjust to local humidity and reduces shrinkage and warping later.

Step 2: Prepare the Wall Surface

Check the frame is straight, dry and sound. Fix any damage and mark stud positions so your battens and fixings land accurately.

Step 3: Install a Breathable Membrane

Wrap the frame with a breathable membrane, overlapping joins as per the manufacturer's instructions. This stops moisture reaching your frame while allowing vapour to escape.

Step 4: Fit Vertical Battens (Ventilation Cavity)

Fix battens over the studs to create a ventilation cavity of at least 20mm. This airflow helps the wall dry out and is a key reason cladding performs well over decades.

Step 5: Add Insect Mesh and Starter Trim

Install insect mesh at the base and top of the cavity to keep pests out while maintaining airflow. Then fit a starter trim along the bottom edge for a clean, level start.

Step 6: Fix the First Board

Use a laser or spirit level to ensure the first board is perfectly straight. Every following board relies on it, so take your time here.

Step 7: Continue Board Installation

Work upward, fixing each board with two nails per batten crossing. Leave small expansion gaps (typically 2–3mm) and stagger end joins for a professional look.

Step 8: Handle Corners, Windows, and Doors

Use external and internal corner flashings or timber stops. Seal cut ends around openings and install flashings above windows and doors to direct water away.

Step 9: Finish and Protect

Seal all cut ends and apply your chosen finish promptly. Unprotected timber weathers to silver-grey, which is lovely if intentional but best planned for.

Horizontal vs. Vertical Cypress Cladding Installation

Horizontal installation is the most common. It's quick to fix over vertical battens and creates a classic, elongated look. Vertical installation requires horizontal battens (or cavity battens with spacers) and sheds water quickly, giving a modern, contemporary feel. Tip: whichever you choose, always ensure water has a clear path to drain.

Common Cypress Cladding Installation Mistakes

• Skipping acclimatization

• Using non-stainless or poor-quality fixings that stain the timber

• Forgetting to seal cut ends

• Blocking the ventilation cavity

• Installing boards too tightly with no expansion gaps

• Poor flashing around openings

How to Maintain Cypress Cladding After Installation

Wash annually with a soft brush and mild detergent. Reapply oil or sealant every 2–3 years, depending on sun exposure. Inspect fixings and flashings regularly, especially after storms.

Cypress Cladding Cost and Installation Time

Costs vary by profile, grade and finish, with supply typically ranging from around $40 to $90 per square metre, plus labour and accessories. A confident DIYer might finish a modest wall in a weekend, while a whole home generally takes a professional crew one to two weeks.

Do You Need a Professional?

Small projects like sheds, fences or feature walls are very doable for capable DIYers. For multi-storey homes, bushfire-prone areas (BAL ratings) or complex flashing details, hire a licensed builder and check your local council and National Construction Code requirements.

Ready to Start Your Project?

Installing cypress cladding is a rewarding project that adds lasting beauty and value to your home. For premium timber, expert advice and reliable service, visit Ballarat Timber Supplies today. Their friendly team can help you choose the right profile, quantity and accessories. Contact them for a quote and start transforming your home.

Frequently Asked Questions

How long does cypress cladding last?
With proper installation and maintenance, it can last 25 years or more.

Does cypress cladding need to be treated?
Its natural oils offer good durability, but a protective finish improves longevity and appearance.

What is the best fixing for cypress cladding?
Stainless steel nails or screws are ideal as they resist corrosion and staining.

Can I install cypress cladding myself?
Yes, with the right tools and planning, though professional help is wise for complex jobs.

How much gap should be left between cypress cladding boards?
Generally 2–3mm, or follow the profile manufacturer's guidance.

Is cypress cladding better than cedar cladding?
Cypress is locally sourced, naturally termite-resistant and cost-effective. Cedar is lighter and very stable, but typically imported and pricier.

What finish is best for cypress cladding?
A quality penetrating oil or UV-resistant sealant works best, depending on your desired look.