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Warwick Insulated Garden Offices: 4m x 8m (13ft x 26ft) DELUXE Plus Insulated Pressure Treated Garden Office - Aluminium Fully Opening BiFold Doors - Increased Eaves Height - 64mm Insulated Walls, Floor and Roof + Free Installation

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Warwick Insulated Garden Offices: 4m x 8m (13ft x 26ft) DELUXE Plus Insulated Pressure Treated Garden Office - Aluminium Fully Opening BiFold Doors - Increased Eaves Height - 64mm Insulated Walls, Floor and Roof + Free Installation

  • 4m x 8m DELUXE Plus Garden Office
  • Anthracite Grey Aluminium BiFold Doors
  • Chrome Fittings
  • Insulated 64mm Garden Office 
  • Includes Free Installation
  • Pressure Treated
  • EPDM Roofing - Synthetic Rubber Roof Covering
  • Great Garden Office for small spaces
  • Increased Eaves and Ridge Height
  • Fully Double Glazed, 14mm thick Argon filled double glazed units
  • Fully Insulated Roof, Floor and Walls
  • 64mm thick, double skinned and insulated plain panels
  • 64mm thick Walls, Floor and Roof (12mm T&G - 40mm EcoTherm - 12mm T&G)
  • EcoTherm is a high performance insulation
  • Thermal conductivity of 0.022 W/mK.
  • Toughened Safety Glass
  • 38mm x 63mm CLS Rounded Framing
  • Fully modular design, allowing fully customisable placement of panels, doors and windows
  • Additional Windows, doors and plain panels can be added if required. Please call us for detail
  • 15 Year Anti-Rot Warranty
  • FREE Mainland UK Delivery
  • FREE INSTALLATION

Was: £38,338.21
Now Only: £26,623.76
SAVE: £11,714.45 (31%)
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Google Customer Rating:
Google Site Rating 4.5 out of 5
Quantity
FREE DELIVERY in 15 working Days*
Estimated Delivery: Thursday, 17 Apr 2025

Product Accessories

Bearers Upgrade (your shed comes with standard bearers)

Extra Floor Bearers - Stronger Floor (25 x 38) Upgrade
Extra Floor Bearers - Stronger Floor (25 x 38) Upgrade (+£72.45)
Total Price: £26,623.76
  • 4m x 8m DELUXE Plus Garden Office
  • Anthracite Grey Aluminium BiFold Doors
  • Chrome Fittings
  • Insulated 64mm Garden Office 
  • Includes Free Installation
  • Pressure Treated
  • EPDM Roofing - Synthetic Rubber Roof Covering
  • Great Garden Office for small spaces
  • Increased Eaves and Ridge Height
  • Fully Double Glazed, 14mm thick Argon filled double glazed units
  • Fully Insulated Roof, Floor and Walls
  • 64mm thick, double skinned and insulated plain panels
  • 64mm thick Walls, Floor and Roof (12mm T&G - 40mm EcoTherm - 12mm T&G)
  • EcoTherm is a high performance insulation
  • Thermal conductivity of 0.022 W/mK.
  • Toughened Safety Glass
  • 38mm x 63mm CLS Rounded Framing
  • Fully modular design, allowing fully customisable placement of panels, doors and windows
  • Additional Windows, doors and plain panels can be added if required. Please call us for detail
  • 15 Year Anti-Rot Warranty
  • FREE Mainland UK Delivery
  • FREE INSTALLATION

4m x 8m (13ft x 16ft) DELUXE PLUS - INSULATED 64mm PRESSURE TREATED GARDEN OFFICE + FREE INSTALLATION

64mm Insulated Walls, Floor and Roof  (12mm (T&G) + 40mm Insulated EcoTherm + 12mm T&G) - Double Glazed Safety Toughened BIFOLD FULLY OPENING DOORS (4mm - 6mm - 4mm) + EPDM Roof + INCREASE EAVES HEIGHT + FREE INSTALL

Window and Doors Specifications:

BiFold Fully Opening Doors - 3400mm x 2210mm (4 Doors) - Aluminium BiFold Doors - Anthracite Grey and Outside

 

 

BESPOKE SERVICE – As we manufacture this product to order - we are able to amend and tweak your design to your specifications. Please call us for further information and a quote.

Optional Upgrades to PVC Doors & Windows.

Visit our Factory to see us manufacturing a Garden Room. Our staff will happily show you around the product. We pre-build all our buildings prior to delivery and send you a video to make sure you are 100% happy with the product prior to us shipping your goods.


This stunning 4m x 8m Insulated Garden Office offers a modern building that is both practical and stylish. You can position the panels of the building to your specification, moving windows and walls to your requirements giving you a bespoke building. The PVC windows and doors of this garden room are double glazed, with two of the glazed panels including opening top windows.

EcoTherm is a high performance insulation with a fibre-free rigid thermoset polyisocyanurate (PIR) core.

It is used to insulate solid concrete and suspended timber ground floors, and has a thermal conductivity of 0.022 W/mK.

The price of this item includes full installation of the building into your garden. A firm and level base is required for this, we recommend either solid concrete or concrete slabs. It is recommended that the floor of this garden room is further covered by either carpet or laminate to reduce wear on the match boards.

Please Note: These Insulated Garden Offices are Pressure Treated but not painted. Although Pressure Treated you will need apply and an application of wood preservative which is not part of the home installation service. In order to qualify for our 15 year anti-rot guarantee the building must be annually treated with a high quality spirit based wood preservative.

Key Features

  • 4m x 8m Deluxe Plus Garden Office
  • Anthracite Grey Aluminium BiFold Doors
  • Chrome Fittings
  • Includes Free Installation
  • Pressure Treated
  • EPDM Roofing - Synthetic Rubber Roof Covering
  • Great Garden Office for small spaces
  • Increased Eaves and Ridge Height
  • Fully Double Glazed, 14mm thick Argon filled double glazed units
  • Fully Insulated Roof, Floor and Walls
  • 64mm thick, double skinned and insulated plain panels
  • 64mm thick Walls, Floor and Roof (12mm T&G - 40mm EcoTherm - 12mm T&G)
  • EcoTherm is a high performance insulation
  • Thermal conductivity of 0.022 W/mK.
  • Toughened Safety Glass
  • 38mm x 63mm CLS Rounded Framing
  • Fully modular design, allowing fully customisable placement of panels, doors and windows
  • Additional Windows, doors and plain panels can be added if required. Please call us for detail
  • 15 Year Anti-Rot Warranty
  • FREE Mainland UK Delivery
  • FREE INSTALLATION

We offer an array of additional bespoke extras and upgrades to suit your garden building, ranging from timber upgrades to ground works and electrics. 

Optional Extras:

  • Bespoke Sizes
  • Concrete Bases
  • Paving Slab Bases
  • Timber Painting & Treatment
  • Building Installation service
  • BiFold Doors Dimensions: BiFold Doors – 3400mm x 2210mm (4 Doors) – Anthracite Grey Inside and Outside
  • Double Door Height: 1875mm (6'1")
  • External Depth: 8001mm (24'4") + 600mm (1'11") Overhang
  • External Eaves Height: 2489mm (98”)
  • External Ridge Height: 2667mm (105”)
  • External Width: 3988mm (13'1")
  • Floor bearers: 44x44mm
  • Floor Bearers Direction: Front to back
  • Front Overhang: 600mm (1'11")
  • Internal Eaves Height: 2286mm (90”)
  • Internal Ridge Height: 2350mm (92.5”)

FREE STANDARD UK MAINLAND DELIVERY*

*Deliveries to most parts of mainland UK are free of charge. However deliveries to certain remote areas may be subject to a surcharge:

Zone 1 - BH, CA, CF, DT, LD, HR, NE, NP, SY, TA  £99.90

Zone 2 - DG, EH, EX, KA, LL, ML, TD, TQ, PL, TR £179.90

Zone 3 - AB, DD, FK, G, KY, IV, SA, PA 1-19 (rest of PA No Service) PH 1-18 (Rest of PH no Service) £299.90

Zone 4 - PO30-40     £329.99

*We are unable to ship to the following locations: BT, GY (Guernsey), IM (Isle Of Man), JE (Jersey), KA, ZE, Scottish Isles

BOOKING YOUR DELIVERY DATE

Once your order has been placed, you will be contacted by our manufacturer's delivery team and you will be advised of a delivery date. You will be able to add additional delivery information at this point. Your garden building is manufactured to order.

We offer a bespoke service on this range of sheds, such as unusual sizing or additional windows and doors. Lead times will be extended on these products. Please call for further information.

HOW WILL MY GOODS BE DELIVERED?

Please be advised delivery is kerb side delivery only. It is at the discretion of the driver if they are able to drop the garden building to a different location. The drivers are not insured to go into your property. If you have any special requirements or believe access to your address may be difficult for our delivery driver please contact us as soon as possible. A general rule of thumb is that if a refuge vehicle can gain access then generally our delivery lorry should be able to but if in doubt please get in touch with us.

Typical delivery is 20 working days but we do aim to deliver a bit quicker. Once you have placed your order you will be contact by our delivery team to confirm your delivery date.

Delivery is between the hours of 7am – 7pm Mon-Sun. It is possible to request a call an hour prior to delivery but this is subject to the driver having a mobile and cannot be a guaranteed service. 

If you are going to be out on the day of delivery, it is possible for the item to be left somewhere (for example down the side of a house) but at your own risk. To do this you must leave a signed note detailing your instructions in a clear location for the driver to see. It is important that you sign the instructions as this will be taken by the courier as proof of delivery.

Please note we will always contact you by phone or by email to confirm a delivery date – we will not just turn up unannounced – if you do not have a confirmed delivery date please email us or call us.

Please note your card is debited at checkout. This is to protect you the customer as we do not store your credit card details. We will contact you if a surcharge is applicable and at that point you can chose to accept the charge or cancel the order and we will make a full refund to your card. For our full terms please refer to our Shipping Terms.

Recent Google Reviews

Michael Murray, 28 Feb 2023

Excellent shed at a fantastic price easy to assemble delivered on time. Would highly recommend

Sarah B, 12 May 2023

We bought a shed from ShedsFirst, it was easy to find the right size from the range on their website and the ordering process was simple. The shed arrived on time and was well packaged to prevent damage. The quality of the wood is really good. The only area that we cannot wholeheartedly praise is that the assembly instructions could have been clearer. But on the whole, we definitely recommend them.<br />

Tanya Harrison, 31 May 2023

Great communication at all stages of order, delivered on time and high quality shed which was easy to install, would highly recommend, we are very happy with our purchase.

Nereida Barton, 9 Jun 2023

ShedsFirst is a best company. I have ever used. Customer service were brilliant and quick to respond. Top quality product for a great price. I am grateful to them.

See all Google reviews

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