3m x 3m Mercia Insulated Room Kit (Approx 10ft x 10ft)
- Pick your delivery date available
- 10 Year Anti-Rot Guarantee
- Ideal for storing garden tools and equipment
- Durable timber construction
- Secure and lockable door
- Ample internal storage space
- Easy-to-follow assembly instructions
- Perfect for garden storage or workspace
- High-quality UK manufacturing
- 10-year anti-rot guarantee
- Smooth-planed timber finish
- Compact footprint for small gardens
- Strong internal framing for stability
Description
Build an additional living space with our 3 x 3m Self-Build Insulated Garden Room.
Be the envy of all your neighbours with a contemporary Insulated Garden Room. Ideal as a tucked away retreat or the centre of home entertainment. The modular design means you can place the doors and windows in a configuration to suit your needs.
With 72mm thick double skinned walls, double glazed windows and fully insulated roof, floor and walls, this is the perfect space for all-year-round use.
The flat roof creates a contemporary silhouette in your garden, whilst promoting excellent rain water run-off, helping keep your building dry for many years to come. The roof is covered with high-grade mineral felt.
Mercia Insulated Garden Rooms are manufactured here in the UK, using sustainably sourced and regulated timber. The building comes with comprehensive instructions and a step-by-step video guide taking you through every part of the build. All fixtures and fittings are included as standard. We recommend a good understanding of DIY for the construction of this building.
Please Note: A firm and level base is required for this building, either made of 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 matchboards.
Please Note: These Insulated Garden Rooms are NOT pre-treated or painted. In order to qualify for our 10 year anti-rot guarantee the building must be annually treated with a high quality spirit based wood preservative and a waterproof treatment.
Specifications
| Dimensions | 317.20cm |
|---|---|
| Imperial Size Ft | 3m x 3m |
| Treatment Type | Dip Treated |
| Cladding Type | 0.00cm x 0.00cm |
| Cladding Thickness | 7.20cm |
| Framing Size | 0.00cm x 0.00cm |
| Roof Type | Pent |
| Roof Covering | Mineral Felt & Bitumen |
| Floor Material | Tongue and Groove |
| Floor Thickness | 1.20cm |
| Floor Bearer Size | 0.20cm |
| Door Width | 151.20cm |
| Door Height | 185.00cm |
| Window Thickness | 1.40cm |
| People Required | 0.20cm |
| Ridge Height | 236.60cm |
| Base Width Footprint | 314.00cm |
| Base Depth Footprint | 314.00cm |
| Internal Width | 299.90cm |
| Internal Depth | 299.90cm |
| EAN | 5029442013756 |
| Material Guarantee | 1.00cm |
- SKU: SI-011-002-0004
- Brand: Mercia
Delivery for this Product
Mercia products are delivered kerbside or to your driveway. With the exception of fully assembled fence panels, all items arrive flat-packed with assembly instructions.
Booking Delivery
At checkout (excluding Metal Sheds), you’ll be asked to select a delivery date. Our Request a Delivery Date service covers most areas, with free delivery to the majority of UK postcodes. Some areas may incur a surcharge or be excluded—please check with the postcode tool.
Before Delivery (Excluding Metal Sheds)
If you provide a mobile number, you’ll receive a text on the morning of delivery with a 2-hour time slot and a link to track your order.
Mercia Metal Sheds
Metal Sheds are delivered by courier without prior notice. If you are not home, a card will be left for redelivery arrangements. Delivery timescales are shown on product pages (working days, Monday–Friday, excluding bank holidays). Remote areas may take longer.
On Delivery
Deliveries are typically made using 3.5T, 7.5T, or 18T lorries. Drivers are insured only for kerbside or driveway delivery but may, if access allows, place goods at the side of your house. They cannot deliver through your home or to unsafe areas. Please check all parts before arranging third-party installation.
Installation Orders
Installation lead time is typically 7 weeks from order. Delivery and assembly are usually on separate days, though some may be combined. The manufacturer’s team will confirm which applies to your order.





































