12 x 12 Shire Cali Insulated Garden Office

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12 x 12 Shire Cali Insulated Garden Office - In Situ, Doors Closed
  • 12 x 12 Shire Cali Insulated Garden Office - In Situ, Doors Closed
  • 12 x 12 Shire Cali Insulated Garden Office - Isolated, Doors Closed
  • 12 x 12 Shire Cali Insulated Garden Office - In Situ, Doors Open
  • 12 x 12 Shire Cali Insulated Garden Office - Front View, Doors Closed
  • 12 x 12 Shire Cali Insulated Garden Office - Front View, Doors Open
  • 12 x 12 Shire Cali Insulated Garden Office - Colours
  • 12 x 12 Shire Cali Insulated Garden Office - Dimensions
  • 12 x 12 Shire Cali Insulated Garden Office - Footprint

Key Features

Bespoke and Made to Measure

Bespoke or made to measure
Bespoke or made to measure
Contact our Sales Teams for more information on our bespoke service

12 x 12 Shire Cali Insulated Garden Office

Save £1,575.14
NEW - Installation - Free Installation
NEW - Interest Free Credit
NEW - Guarantee - 10 year - gold

Product Code - 10040144


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Usually delivered: 14 Days Delivery.
Use Pick A Day Delivery below for the first available delivery date for your Post Code

excludes installation option


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Your choices:

  • 12 x 12 Shire Cali Insulated Garden Office£8,723.86


            Upgrade your garden's appearance with the Cali 12 x 12 Pent Garden office - a modern and versatile summerhouse that exudes sophistication. Its pent roof and fully glazed double doors create a spacious and bright interior, perfect for a chic office space, a cosy seating nook, or even a gym area.

            Crafted from high-quality wood and finished with cedar, this summerhouse is engineered to last, providing resistance against common damages with advanced adhesive resins, water-resistant waxes, and zinc borate. The interior cladding is designed with moisture-resistant MDF board and an Oxford profile finish, while the YBS Airtec Double insulation in the walls and roof ensure a comfortable temperature.

            The summerhouse flooring features 25mm Celotex insulation, tongue and groove boards, and a herringbone vinyl finish, adding to its durability and high-end appearance. The handcrafted joinery on the windows and doors adds to its bespoke charm, with the option to upgrade to UPVC or aluminium windows and doors in anthracite grey, black, or white. Choosing this option will extend the delivery time. These options will reduce the door height slightly, and prices are available on request.

            Professional installers handle installation, so ensure a firm and level base beforehand for a secure and comfortable garden room. With all these impressive features, the Cali 12 x 12 Pent Garden office is a fantastic investment for any garden, providing style, security, and comfort in equal measure.

            Your Dream Space: Luxurious Building with Exquisite Pre-Painted Finish

            Choose a mix of your favourite colours or select hues that complement each other. The Cali is supplied factory painted internally and externally in one of these available colours: Aegean, Anthracite, Champagne, Coastal Blue, Dark Brown, Green Tea, Gull Grey, Lime Green, Rustic Brown, Sage Green, Silver Birch and Vanilla Cream.  You can choose a different colour for the inside and outside. Choose a mix of your favourite colours or select hues that complement each other. 

            In just a matter of days after your order is confirmed, the manufacturer's dedicated team will reach out to you regarding your paint preferences and choices.

            Also available: Cali 8x8 Pent, Cali 12x8 Pent & Storage, Cali 16x8 Pent, Cali 16x8 Pent & Storage, Cali 20x8 Pent, Cali 20x8 Pent & Storage, Cali 12x12 Pent & Storage, Cali 16x12 Pen, Cali 16x12 Pent & Storage, Cali 20x12 Pent, Cali 20x12 Pent & Storage

            Bespoke Garden Office Service

            The Shire Cali Garden Pod range is available with bespoke design options. You can switch up the design to suit your tastes and preferences. Want to reduce the number of windows and add a skylight instead? You can! Want more windows or a more expansive floor plan? That’s available too. Contact us to find out how to design your dream bespoke garden office today.


            Guarantee - 10-year warranty

            Walls - 11mm external engineered wood board with cedar finish + 25mm YBS Airtec Double insulation + Internal 12mm MDF moisture resistant board, grooved to imitate classic cladding

            Floor -  44mm thickness includes: 19mm tongue and groove + 25mm Celotex + internally finished with herringbone effect vinyl

            Roof - 48mm thickness includes: 11mm OSB Topside + 25mm YBS Airtec Double insulation + Internal 12mm MDF moisture resistant board, grooved to imitate classic cladding + EPDM Rubber Roof 

            Frame - 70mm x 44mm

            Windows - double glazed 2 x opening front windows, 2 x opening side windows

            Doors - double doors with full-length double glazing

            Treatment - Zinc borate-based process

            Make the Most of Your Garden Pod:

            Invest in the Shire Cali 12x12 Summerhouse and transform your garden into a versatile and functional living space. Its adaptability and versatility make it a valuable addition to your home, as you can customise it to fit your needs.

            Host outdoor meals or entertain guests by converting the summerhouse into a covered eating area. The spacious interior allows for large dining tables and plenty of seating, ensuring a comfortable and relaxing dining experience.

            If you're a craft enthusiast, create your own garden craft room with a worktop, chair, and storage for all your supplies. Enjoy uninterrupted creative time in a peaceful and inspiring space.

            The Shire Cali 12x12 Garden Pod can also be converted into a private garden office, providing a comfortable workspace to work, think, and create. With fully glazed double doors and a pent roof, the natural light creates a bright and productive workspace that inspires creativity.

            No matter how you choose to use it, the Shire Cali 12x12 Summerhouse offers ample space and endless possibilities for creating a functional and enjoyable living space in your garden.

            About Your Order:

            The Shire Garden Office Pod is a British-made garden building made from FSC® certified timber. You will get a low-carbon footprint summerhouse made from ethically sourced materials. It comes with a 10-year warranty. 

            Price includes assembly by Shire’s professional fitting team. You’ll need a firm and level concrete base. Our manufacturer’s assembly team will contact you requesting images of the base.  Occasionally, they may visit the site to confirm the base is suitable for assembly. Once they have confirmed the base is appropriate, you will be given a delivery/assembly date (delivery and assembly are on the same day).

            Please note: Images depict the summerhouse pre-painted and with furnishings and accessories; these are for illustration purposes only and are not included with your order.

            Garden Office Aftercare:

            The home garden office has been treated using a proprietary zinc borate-based process.  As this is an advanced treatment, it makes it a maintenance-free garden building. If required, you can repaint the building to keep it looking new.

            About Shire:

            Shire is one of the UK's leading manufacturers of garden buildings. Shire proudly manufactures the most extensive UK timber garden building range. Their range includes Garden Sheds, Log Cabins, Eco Homes, Home Offices, Sheds, Workshops, Summerhouses, Playhouses, Arbours, Storage units, and Pet houses.

            Their UK production facilities cover 23 acres, including stock holding facilities and an advanced high-speed timber planing mill. There is also a modern, well-equipped joinery production facility and semi-automated production lines. All Shire garden buildings are manufactured in the UK using the finest spruce timber, imported directly, and manufactured using the most up-to-date machines to ensure the best quality and best value-for-money garden sheds in the UK.


            We provide FREE delivery to most mainland UK postcodes; however, certain regions might have an additional surcharge, and a few postcode areas are outside our coverage. To verify availability and potential surcharges, please use the 'Delivery cost checker' tool above with your postcode.

            Delivery and Installation Timeframes

            We offer same-day delivery and installation services. While we strive to complete the installation on the same day, larger buildings may require more than one day for installation. You can find the estimated delivery and installation lead time for this product on the product page above. Our lead times are calculated in working days (Monday - Friday) and do not include Bank Holidays. These estimates are sourced from the manufacturers and serve as a general guideline, subject to fluctuations in demand. We provide this information in good faith to represent the expected delivery during that period. Please note that some remote areas might experience slightly longer lead times.

            Booking Delivery and Installation

            By entering your postal code in the ‘Pick a delivery day. ENTER POSTCODE’ Box above you can select a delivery/installation date. 

            Delivery and Installation Procedure

            Within 5 working days, Shire, the manufacturer, will reach out to you. This communication will be via either a text message or an automated telephone message. If a mobile number is not provided, the latter method will be used. This message will include the necessary website link where you can review and accept the assembly's terms and conditions. Prompt acceptance of these terms is crucial to avoid any potential delays. Once you've agreed to the terms and conditions, Shire will contact you within the specified timeframe to arrange the delivery and assembly date for your order. Please note that this process might take more time during peak seasons. Keep in mind that the installation team will require unobstructed access to your garden, a minimum of 18" clearance around the building, and a solid, level foundation. It's important to know that Shire's installation team cannot bring the building through your home, as they lack the insurance coverage for entering a customer’s property.

            Delivery Day

            The manufacturer, Shire, handles the delivery process. Typically, this item will be delivered using a 17-ton flat-bed vehicle, similar in size to a council refuse lorry. Deliveries are scheduled within the time frame of 7 am to 7 pm."


            Please note: all imperial measurements are approximate and Shire Garden Offices are made from metric measurements. We would recommend that the base is at least 50mm bigger in each direction.


            Product Name:
            12 x 12 Shire Cali Insulated Garden Office
            Free Installation
            Optional Installation:
            Installation included in the price
            4.02m (13'3")
            4.56m (15'0")
            Footprint Width:
            3.66m (12'0")
            Footprint Depth:
            3.80m (12'6")
            Footprint Width (Internal):
            3.52m (11'7")
            Footprint Depth (Internal):
            3.66m (12'0")
            Height to Ridge:
            2.44m (8'1")
            Height to Eaves:
            2.20m (7'3")
          • Exterior and internal walls are pre-painted in off white Technos paint (You will be contacted after your order is placed to confirm your selection of exterior paint colour)
          • 11mm external engineered wood board with cedar finish
          • 25mm YBS Airtec Double insulation
          • Internal 12mm MDF moisture resistant board, grooved to imitate classic cladding
          • Floor Material
          • 19mm tongue and groove
          • Fully insulated with 25mm Celotex
          • Internally finished with herringbone effect vinyl
          • Floor Thickness:
            44mm + Vinyl flooring
            Floor Joists:
            70mm x 44mm (3" x 2")
            Floor Joist Direction:
            Side to Side
            Roof Type:
            Roofing Felt:
            EPDM Rubber Roof (with 50 year guarantee)
            Roof Material:
          • 11mm OSB Topside
          • 25mm YBS Airtec Double insulation
          • Internal 12mm MDF moisture resistant board, grooved to imitate classic cladding
          • Roof Thickness:
            Roof Joists:
            70mm x 44mm (3" x 2")
          • Standard: Double glazed wooden double doors
          • Option to enhance double doors with UPVC frames with double glazing (please contact our sales team for a quote)
          • Door Height:
            1.81m (5'11")
            Door Width:
            1.42m (4'8")
            Door Lock System:
            3-Lever mortice lock (supplied with two keys)
            Number of Windows:
            2 x opening front windows
            2 x opening side windows
            Window(s) and Door location:
            Please contact our sales team if you require different window and door configurations
            Window Material:*
          • Standard: Double glazed wooden windows
          • Option to enhance windows with UPVC frames with double glazing (please contact our sales team for a quote)
          • Optional UPVC Double Glazed Skylight available (please contact our sales team for a quote)
          • Window Height:
            1.54m (5'1")
            Window Width:
            0.64m (2'1")
            Optional Roofing Felt Tiles:
            Optional Base (to be used instead of a concrete base)
            Proprietary Zinc Borate-Based process
            Recommended Treatment:
            Supplied treated
            Energy Rating for Building:
            R value of 1.45 - wall and roof
            Manufacturer's Guarantee:
            10 Year Anti-Rot
            FSC Certified:
            Free Delivery*:
            Product Code:
            Manufacturer Code:
            EAN Number:
            Shire Garden Buildings
            Country of Origin:
            United Kingdom
            Click to View Alternative Sizes:
            8x8, 12x8, 12x8 inc storage, 12x12, 12x12 inc storage, 16x8, 16x8 inc storage, 16x12, 16x12 inc storage, 20x8, 20x8 inc storage, 20x12, 20x12 inc storage

            *Contact our Sales Team to receive a quote for your choice of optional uPVC windows, doors, and skylights.


            The 12 x 12 Shire Cali Pent Garden Office is a stylish garden building. It’s a garden pod you can use in many ways. The key features include:

            • Installation is included in the price
            • Inclusive Painting for Interior and Exterior (Colour Selection Post Ordering)
            • No treatment needed
            • Windows and doors double glazed 
            • 20mm Flooring with Herringbone Vinyl flooring
            • Option for UPVC Double glazing and a skylight
            • EPDM Roofing with 50 Year Guarantee
            • 10-year anti-rot guarantee