Gradwell Group Building Products
Octave 8' x 12' Greenhouse - Silver Aluminium Frame & Clear Polycarbonate Panels
The Octave is the spacious greenhouse for the gardening enthusiast. The large work-space and wide double door provide the enthusiastic gardener plenty of growing room with enough to spare for seeding and storing tools and supplies. The rust-resistant, reinforced aluminium frame and crystal-clear, virtually unbreakable polycarbonate panels make this greenhouse maintenance-free and highly durable, capable of withstanding harsh weather conditions for many years of gardening use.
- Virtually unbreakable, crystal-clear polycarbonate panels provide over 90% light
transmission - Panels block harmful UV rays and are 100% UV protected; do not discolour, fracture or
shatter - Sturdy, reinforced, rust-resistant aluminium frame with support beams for added risilience
- Galvanised steel base included with designated holes for anchoring (anchors not supplied)
for additional structural stability - 2 manually adjustable vent windows for improved ventilation
- Easy DIY installation – sliding panels’ assembly system, ready to assemble pre-drilled
profiles, and pre-cut panels - Low-threshold, high & wide double door for easy access
- High headroom (2.25m) for improved working space
- Lockable door handle (padlock not included)
- Built-in gutter system for effective water drainage & collection
- Maintenance free design
- Technical information, including dimensions, panel thickness, and wind and snow load, can be found in the photo gallery above.
About this product
Dimensions
Collapsible row
About Gradwell Group Building Products
At Gradwell Group Building Products, we’re proud to be one of the UK’s trusted suppliers of high-quality outdoor living and construction solutions. With over 20 years of experience, we offer a carefully curated range of products—designed to combine long-lasting performance with stylish design.
Whether you’re looking for reliable shelter, low-maintenance roofline systems, or modern garden structures, we have a solution to suit every project. Our expert team provides honest advice, fast UK-wide delivery, and friendly customer support from start to finish.
Join thousands of homeowners, tradespeople, and developers across the UK who choose Gradwell Group for dependable products at competitive prices. Explore our full range today and experience quality you can count on.
Why Choose Gradwell Group Building Products?
✅ Trusted UK supplier with 20+ years of industry experience
✅ High-performance products built for British weather
✅ Wide range of styles, sizes, and custom options
✅ Nationwide delivery with installation support available
✅ Excellent customer service from our friendly, expert team
Frequently Asked Questions
1. Do your products come with a warranty?
Yes, all Gradwell Group products come with a manufacturer’s warranty for your peace of mind. Warranty periods vary depending on the product type, but most of our aluminium and GRP ranges offer 10–25 years of coverage against structural defects, corrosion, or weathering.
2. Can you deliver anywhere in the UK?
Absolutely. We offer UK-wide delivery on all products, including large or heavy items such as carports, patio covers, and conservatories. Delivery times may vary based on location and product availability, but we’ll always keep you updated every step of the way.
3. Do I need planning permission for your products?
In most cases, our products do not require planning permission—especially for carports, door canopies, patio covers, and roofline items. However, we always recommend checking with your local planning authority for large installations or if you live in a conservation area or listed building. Our team can provide specifications to assist with your application if needed.
4. Can I install the product myself or do I need a professional?
For larger structures like aluminium carports or lean-to conservatories, we recommend using a qualified installer for best results. We can also arrange professional installation services through our trusted partners.
5. How do I choose the right size or style for my property?
Our team is here to help! If you’re unsure which product suits your space, simply get in touch with us. We can guide you through measurements, fitting options, and customisation features to ensure you get the perfect fit—whether it’s for your garden, driveway, or roofline.