Polycarbonate H joiners 10mm 3m/6m Clear

Clear polycarbonate H joiners for 6mm, 8mm, and 10mm twin wall polycarbonate sheets. Affordable, UV-stable joining solution designed for DIY enthusiasts and budget-conscious projects including greenhouses, polytunnels, and temporary structures.

These one-part polycarbonate H connectors offer a cost-effective alternative to aluminium glazing bars, making them ideal for smaller structures where budget is a priority. Easy to install with simple screw fixing through the centre.

PRODUCT SPECIFICATIONS

• Width: 45mm(6mm) 50mm(10mm)
• Lengths Available: 3m/6m (Interstate delivery for 6m products requires prior confirmation with sales)
• Colour: Clear/Transparent
• Material: UV-stable polycarbonate
• Compatibility: 6mm, 8mm, and 10mm twin wall polycarbonate sheets
• Profile Type: H-shaped connector (one-part design)
• Expected Lifespan: Approximately 10 years

KEY FEATURES & BENEFITS

• Affordable
• Easy DIY Installation: Simple slide-in design
• UV Stable Polycarbonate
• Flexible
• Simple Screw Fixing:
• Easy to Cut to Size
• Lightweight

IDEAL APPLICATIONS

Polycarbonate H joiners are best suited for:

• Greenhouses: hobby greenhouses or hot house
• Polytunnels (Polycrubs)
• DIY Projects: Cubby house, sunroom, furniture
• Temporary Structures: Fence, Pergola side enclosure
• Garden Sheds
• Workshop Skylights
• Animal Shelters

NOT RECOMMENDED FOR

While polycarbonate H joiners work well for many applications, we do not recommend them for pergola roofs or other permanent, high-visibility architectural installations. For these applications, we strongly recommend our Aluminium H Glazing Bars, which offer:

• Heavy-duty construction for long-term durability
• Longer lifespan (20+ years)
• Superior weather resistance
• Professional appearance
• Easier installation with integrated sealing

INSTALLATION GUIDE

1. Measure & Cut: Measure the length required and cut the H joiner to size using a fine-tooth saw.
2. Position the Joiner: Place the H joiner where two polycarbonate sheets will meet.
3. Insert First Sheet: Gently slide the first twin wall polycarbonate sheet into one side of the H connector slot.
4. Insert Second Sheet: Slide the second sheet into the opposite side of the H connector.
5. Secure with Screws: Fix the H joiner to the supporting structure by screwing through the centre of the profile at regular intervals (typically every 300-400mm).
6. Seal if Required: For additional weather protection, apply silicone sealant along the edges where sheets meet the joiner.

POLYCARBONATE VS ALUMINIUM H JOINERS

Polycarbonate H Joiners:

• ✓ More affordable upfront cost
• ✓ Lightweight and flexible
• ✓ Easy to cut and modify
• ✗ Shorter lifespan (approx. 10 years)
• ✗ More prone to weathering over time
• ✗ Less rigid structure

Aluminium H Joiners (Recommended for 99% of applications):

• ✓ Heavy-duty and long-lasting (20+ years)
• ✓ Superior weather resistance
• ✓ Professional appearance
• ✓ Integrated sealing systems
• ✓ Better structural support
• ✗ Higher initial cost

Our Recommendation: For most pergola applications (99% of projects), we recommend our stronger Aluminium H Glazing Bars, which are more heavy-duty, longer-lasting, and easier to install. Polycarbonate H joiners are best reserved for temporary projects, greenhouses, polytunnels, and budget-conscious DIY jobs.

COMPATIBLE PRODUCTS

Use these polycarbonate H joiners with our range of Twin Wall Polycarbonate sheets:

• 6mm twin wall polycarbonate sheets
• 8mm twin wall polycarbonate sheets
• 10mm twin wall polycarbonate sheets

Complete your installation with these accessories:

• Polycarbonate sealing tape (breather tape)
• Polycarbonate end closures
• Polycarbonate roofing screws with sealing washers

MELBOURNE SHOWROOM & DELIVERY

Factory showroom open Mon-Fri 8:30-4:30

Same-Day Pickup: Order online and collect from our Melbourne location during business hours.

Australia-Wide Delivery