Thermastore Insulated Steel Shed & Garage

Our insulated Thermastore Steel Shed and Garage is ideal for workshops, hobby spaces and secure storage for valuable items such as cars, vintage vehicles, electrical goods and household furniture. It’s designed for anyone who needs more than standard storage.

Constructed with 40 mm Kingspan‑insulated walls and roof panels, the Thermastore stays genuinely usable in winter when combined with heating. Available as a shed or garage in widths from 3.1 m to 6.1 m and lengths up to 12.3 m, with a smooth white interior and a PVC‑coated exterior in a choice of colours.

Prices start from €4,950, including FREE Nationwide delivery, professional assembly, and our FREE Site Visit Service. A rebated concrete base is required for all Thermastore buildings.

Current Delivery time 10 – 12 weeks – Scroll down for full breakdown of price and size options 

  • Insulated walls & roof: 40 mm Kingspan insulated sandwich panels throughout.
  • Heavy‑duty materials: Galvanised structural steel framework with fabricated centre support beams for maximum strength.
  • Superior finishes: Safe edge folds, colour‑capped external screws and non‑drip roof sheeting.
  • PVC gutters & downpipes: Fitted as standard on all Thermastore buildings.
  • Maintenance‑free exterior: PVC‑coated in a choice of colours.
  • Door & window options: Roller garage doors, pedestrian doors, double opening doors, double‑glazed PVC pedestrian doors and multiple window choices.
  • Natural light options: UV‑protected polycarbonate clear roof panels available.
  • Smart storage add‑ons: Bike racks, tool racks, workbenches and shelving units.

The Thermastore Insulated Steel Shed & Garage is Made to order in our Manufacturing Facility in Co. Wexford 

Choice of colour & sizes to suit your needs.

Widths: 3.1m, 4.1m, 5.1m, 6.1m
Lengths:  5.3m, 6.3m, 7.3m, 8.3m, 9.3m, 12.3m
Wall height: 2.1m, 2.44m

Prices from €4,950 – Continue scrolling down for full breakdown of price and size options  

Pick your Shed Colour

Walls
Merlin
Roof and trims
Black

Select your preferred colours above to see how your shed will look.

Colours shown in images are indicative colours only and may change depending on screen resolution.


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  • Sizes to Suit your Needs

    Choose the perfect size for your needs. The Adman Thermastore Garage is made to order in a selection of sizes.

    Dimensions (Width x Length) Shed Heights (Ridge height down to wall height) Standard shed
    3.1m x 3.3m (10’ X 10’) 9’ down to 7” €4,950
    3.1m x 4.3m (10’ X 14’) 9’ down to 7” €5,550
    3.1m x 5.3m (10’ X 17’) 9’ down to 7” €6,150
    3.1m x 6.3m (10’ X 20’) 9’ down to 7” €6,950
    Prices above are for standard Thermastore garden sheds which include insulated clear roof sections and pvc guttering. Included is a choice of a roller garage door or a double glazed pvc door.
    4.1m x 5.3m (13’6” X 17’) 9’6” down to 7” €7,650
    4.1m x 6.3m (13’6” X 20’) 9’6” down to 7” €8,450
    4.1m x 9.3m (13’6” X 30’) 9’6” down to 7” €11,550
    5.1m x 6.3m (17’ X 20’) 10’ down to 7” €10,250
    5.1m x 9.3m (17’ X 30’) 10’ down to 7” €12,650
    5.1m x 12.3m (17’ X 40’) 10’ down to 7” €15,750
    6.1m x 6.3m (20’ X 20’) 10’6” down to 7” €11,450
    6.1m x 9.3m (20’ X 30’) 10’6” down to 7” €14,550
    6.1m x 12.3m (20’ X 40’) 10’6” down to 7” €17,850
    Prices above are for standard Thermastore Garages which include roller garage door, insulated clear roof sections and pvc guttering.

    Accessories for your Adman Garden Shed

    Choose from a selection of Accessories

    8ft HEAVY DUTY WORK BENCH & VICE

    259

    MULTIPURPOSE RAMPS

    179

    BICYCLE RACK

    49

    HEAVY DUTY SHELVING UNIT

    179

    GARDEN TOOL RACK

    29

    Why choose the Adman Thermastore

    Here are just some of the reasons to chooses the Adman Thermastore garden sheds & garages

    INSULATED SURFACES

    INSULATED SURFACES

    Walls & roof are insulated using 40mm Kingspan sandwich panel throughout.
    EASILY HEATED

    EASILY HEATED

    Suitable as a workshop or hobby space as heat is retained.
    WALL PANELLING

    WALL PANELLING

    Interior is finished in a white, smooth, easy to clean maintenance free metal surface. Exterior is PVC coated in a choice of colours.

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