Description

Maximise your outdoor living potential with the Palram Canopia Dallas Grey Garden Gazebo 12x20, the largest gazebo in the 12ft width collection. This expansive structure transforms underutilised garden space into a magnificent covered retreat spanning an impressive 236 square feet. The sleek anthracite finish presents a sophisticated aesthetic that enhances modern landscapes while providing unparalleled functionality for homeowners who demand the ultimate outdoor experience.

The engineering excellence behind this gazebo is evident in its robust yet elegant design. Heavy-duty 18cm aluminium columns provide exceptional stability while minimising visual obstruction, creating an open, airy environment. Each column connects to precision laser-cut galvanised steel components, forming a framework that resists corrosion and maintains structural integrity through years of weather exposure. Despite its commanding size, the gazebo requires only four support posts, maximising usable space and flexibility for furniture arrangement.

Overhead, the innovative 6mm twin-wall polycarbonate roof panels deliver superior performance through integrated Heat Block Technology. This advanced feature reduces temperatures beneath the gazebo by up to 5°C, creating a comfortable environment even during peak summer heat. Unlike traditional fabric canopies that deteriorate quickly, these virtually unbreakable panels remain permanently installed, providing year-round protection against UV radiation, heavy rainfall, and snow loads without requiring seasonal maintenance. The engineered screw-free panel system eliminates potential leak points, while built-in ventilation promotes natural airflow.

Customise your outdoor sanctuary with optional accessories that attach seamlessly to the integrated rail system. When desired, privacy curtains or mosquito netting (available separately) transform this expansive gazebo into a fully enclosed outdoor room. Installation remains accessible to homeowners despite the gazebo's substantial size, with pre-drilled components and an intuitive sliding panel system simplifying the assembly process. The Dallas 12x20 represents the pinnacle of outdoor shelter design, combining premium materials with thoughtful engineering to create a structure that will enhance your property for years.

Also available:

Palram Canopia Dallas Grey Garden Gazebo 12x14
Palram Canopia Dallas Grey Garden Gazebo 12x14
Palram Canopia Dallas Grey Garden Gazebo 12x20
Palram Canopia Dallas Grey Garden Gazebo 14x14
Palram Canopia Dallas Grey Garden Gazebo 14x16
Palram Canopia Dallas Grey Garden Gazebo 14x20

Features:

After Care – maintenance free

Warranty - 10 years limited warranty

Glazing Roof  – 6mm twin wall opaque grey polycarbonate

Frame – 8cm x 8cm aluminium powder coated

Roof Glazing - Heat Block Technology

Glazing – grey glazing with 100% full shade

Protection – up to 100% protection from harmful UV sun rays

Wind Resistance – 68 mph / 110 km/hr

Snow load – 18.4 lb/ft2 / 90 kg/m2

Make the Most of Your Gazebo

The exceptional dimensions of the Palram Canopia Dallas Grey Garden Gazebo 12x20 open unprecedented possibilities for outdoor living. Its generous 12x20ft footprint—the largest available in the 12ft width range—provides ample space to create multiple functional zones within a single structure. Establish a complete outdoor entertainment complex with distinct dining, lounging, and bar areas capable of accommodating large gatherings while maintaining an uncrowded atmosphere. The substantial coverage ensures guests remain comfortable regardless of passing showers or intense sunshine.

Health enthusiasts will appreciate the potential to create a dedicated outdoor wellness retreat protected from the elements. Position exercise equipment, yoga platforms, or meditation spaces beneath this expansive shelter to maintain fitness routines throughout the seasons. Heat Block Technology provides superior ventilation and temperature control, creating ideal conditions for physical activity.

For those working from home, this premium gazebo offers enough space to create a professional outdoor office environment complete with desk configurations, meeting areas, and relaxation zones—all within a naturally lit setting that boosts productivity and well-being. The durable construction ensures electronic equipment remains protected while you enjoy the benefits of an open-air work environment that seamlessly connects with your landscape.

About Your Order:

Palram Canopia gazebos offer a hassle-free experience. They are straightforward to assemble and include all the necessary fixtures and fittings to ensure a smooth set-up. The gazebo arrives ready to assemble, with pre-drilled profiles, pre-cut sliding panels, and all hardware included. All products include comprehensive, easy-to-follow instructions to guide you every step of the way.

Please note: Images may depict furnishings and accessories; these are for illustration purposes only and are not included with your order. 

About Palram

Since its inception during the plastic boom of the mid-1960s, PALRAM has evolved into a leader in the thermoplastic industry through over 50 years of innovation and research. Palram - Canopia, a branch of the PALRAM Group, utilises these top-tier polycarbonate and acrylic panels to craft a diverse range of Polycarbonate Garden Structures. 

With Palram-Canopia, bring the strength and sophistication of advanced materials into your garden. More than just expert producers of high-grade plastics, they are passionate creators of outstanding plastic garden buildings, including greenhouses, plastic sheds, patio covers and gazebos.

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Delivery

ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. This product is delivered flat packed, direct to your home and is supplied with a set of instructions to support assembly.

Our telephone lines are exceptionally busy to avoid queuing you can use the ‘Help’ facility which is on every product page.

To protect both you and our drivers, we request that you remain within your property while they complete the delivery.

Booking Delivery

Your order will be dispatched by the manufacturer Palram Applications. If you have ordered more than one item, they may arrive at different times.

Our teams are working hard to ensure your order is delivered within the timescale indicated on the product page. For customers in certain areas (e.g. Scotland and Wales) the timescale for these areas will be extended by up to 10 working days (this may be longer during peak times). Please note lead times are counted in working days (Monday – Friday) excluding Bank Holidays.

Postcodes with extended leadtimes: AB, DD1-7, DD8-11, FK18-21, G84, HS1-8, HS9, IV1-20, IV21-26, IV27, IV28, IV30-36, IV40-63, KA27-28, KW1-14, KW15-17, PA20, PA21-38, PA41, PA42-49, PA60, PA61, PA62-76, PA77-78, PA80, PH1-5, PH6-29, PH30-35, PH36-39, PH40, PH41-44, PH45-50, ZE

Prior to Delivery

With Palram products, you will be sent two text messages. The first message will inform you that your order is being processed. The second message will be sent closer to the end of the delivery timescale, advising you that your order has been dispatched and will be delivered by one of two couriers (TNT or DX).

Please note that both elbec and Palram will be unable to supply any further information on your order during this timescale. 

Upon Delivery

Your order will be delivered kerbside or on your driveway. Due to health and safety, and insurance liabilities, the driver will not be able to take your goods to the back of your property but – upon request – may place the product at the side of the house if there are no access issues. This is to avoid risking damage to your property while delivering to an unsafe location. We will not be able to go through your property.

We recommend against arranging for a third party to install the product before its delivery and checking that all parts are present, and we cannot be held liable for any third-party costs caused by delays.

Specification

Quickview

The Palram Canopia Dallas Grey Garden Gazebo 12x20 is the most spacious option in the 12ft width range. It features premium-grade aluminium construction and high-performance polycarbonate roofing with UV protection. This flagship model delivers exceptional all-weather protection while creating an impressive architectural statement in any outdoor setting. The core features include:

• Clean, modern design
• Screwfree hardtop roof with ventilation
• Integrated rails for netting and curtains (not included)
• Rust-resistant, powder coated, heavy duty aluminium structure
• 100% UV protected and virtually unbreakable polycarbonate opaque grey roof panels
• Easy DIY assembly kit – includes installation hardware
• Maintenance-free