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Mercia Garden Room with Side Shed 12x8

Garden Room with Side Shed 12x8

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  • Garden Room with Side Shed 12x8
  • Garden Room with Side Shed 12x8 (not supplied painted)
  • Garden Room with Side Shed 12x8
  • Garden Room with Side Shed 12x8
  • Garden Room with Side Shed 12x8
  • Side shed
  • Window frame and cladding
  • Veranda
  • Lock and key
  • Floorplan
Product may vary in colour.
  • A superb garden room with handy additional side shed.
  • Perfect for an office or a quiet hobby room.
  • Fully glazed, concertina opening doors.
  • Windows on either side of the doors and a full length side window.
  • High grade stainless steel lock and key.

Free Delivery: 2-15 working days

Most UK Mainland destinations - learn more

Availability: In stock

As low as £1,419.00 1419

Price as configured: 0.00

Size: H211 W303 D244 cm Highest/widest points approx.
Product Code: WALT-SI-003-001-0039-bundle

Availability: In stock

As low as £1,419.00 1419

Price as configured: 0.00

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Mercia Garden Room with Side Shed 12x8   +£1,419.00


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Have your garden building professionally installed.

You wil be contacted to arrange the installation within a few days of the order being placed. Lead time for installation is about 2-3 weeks from date of order (please note it may be a little longer at busier times, paricularly the summer).

Following the booking of the installation, you will be contacted to arrange delivery of your building 2 to 3 days before the installation.

When your building is delivered you will receive an installation information pack containing a form to fill in and return directly to our supplier. Upon receipt of this form our supplier will call you within 2-3 days to arrange the installation.

Installation terms & conditions

+£449.00 each

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I'll be in the gardenThrow back the concertina doors and let the light flood into the fabulous Mercia Garden Room with Side Shed 12x8.

The perfect summerhouse with the added attraction of a side shed for storing your garden furniture or barbecue.


  • 12mm shiplap cladding
  • 12mm matchboard roof and floor
  • 44 x 28mm framing
  • 3 fully glazed doors
  • 1 panelled door
  • High grade stainless steel, secure lock and keys
  • 2 large windows
  • Fully glazed windows on garden room that open fully to 170cm
  • 2.5mm styrene safety glazing
  • Optional shed position
  • Optional hinged door position
  • Fully boarded door on side shed
  • Sloping pent roof
  • Roofing felt
  • Veranda
  • Floor bearers included
  • 10 year anti rot guarantee
  • Supplied flat packed - 2 person assembly recommended

Overall Dimensions:

  • Height: 6.92ft (2.11m)
  • Width: 11.7ft (3.56m)
  • Depth: 8ft (2.44m)
  • Front height: 7.7ft) (2.34m)
  • Back height: 6.8ft (2.07m)
  • Internal width: 8.5ft (2.58m)
  • Internal depth: 5.6ft (1.71m)
  • Base width: 12ft (3.65m)
  • Base depth: 8ft (2.44m)
  • Veranda depth: 1.96ft (0.6m)

Internal Garden Room Area:

  • Width: 8.53ft (2.6m)
  • Depth: 5.28ft (1.61m)

Internal Shed Area:

  • Width: 2.56ft (78cm)
  • Depth: 7.6ft (2.32m)

All listed metric dimensions include the roof overhang.

An installation service is available for this summerhouse - please see Accessories above for details.

Should you opt for the installation service, the lead time for delivery will be between 2-3 weeks and installation will be arranged within a couple of working days from the date your building is delivered.

The Mercia Garden Room with Side Shed 12x8 is supplied pre-treated with a water based timber treatment for protection during transit. In order to receive the full 10 year anti-rot guarantee, it is necessary that you treat the garden building with a high quality, spirit-based, timber preservative prior to or shortly after construction.

It is recommended the summerhouse is built on solid and level ground, ie. concrete or garden slabs.

Please see our complete range of Mercia summerhouses.

Mercia are a Nottinghamshire based timber garden building manufacturer, dealing in a range of huge quality wooden sheds, summerhouses, greenhouses, award winning wooden playhouses, log cabins and fencing to suit every garden and every budget.

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For this product, free delivery is available to most UK mainland addresses.

A surcharge will be added at the checkout for the following areas: Northern Ireland, AB, CF, DD, DG, DT6-8, EH, EX, FK, G, GY, JE, IM, IV, KA, KW, KY, LD, LL, ML, PA, PH, PL, PO, SA, SY, TA, TD, TQ and TB postcodes

No delivery available to: Republic of Ireland, TR21-TR25, ZE, HS, KW15-17, IV41-56, KA27-28, PA20, PA41-78, PH42-44

Delivery to Isle of Man, Jersey, Guernsey, Scilly Isles, Shetland Isles, Orkney Isles, Outer Hebrides, Scottish Islands IV41-51, 55-56, KA27-28

Deliveries to the above offshore islands can only be made to the nearest UK mainland port - a surcharge will be added for this at the checkout. It is your responsibility to arrange onward delivery at your own cost from the UK mainland port to your home address. When placing your order it is important you supply us with the port address you would like your delivery to be shipped from together with your home address. You will be contacted by the delivery team who will give you the relevant details about your order.

A surcharge will be added for all log cabin orders as above

On receipt of order

Customers will be contacted between 2 to 3 working days after the order has been placed to arrange a suitable delivery date. Customers can also book their own delivery via the delivery portal which will be emailed or texted to you.

Deliveries are made Monday - Friday between 7am and 7pm. Customers will be emailed or texted on the morning of the delivery giving a 2 hour delivery time slot. The driver will aim to contact customers 30 minutes before arrival.

Customers must be available to check and sign for the delivery unless written confirmation has been received from the customer that the item can be left securely.

Delivery will be made to the nearest point that is adjacent to the roadway and clear of obstruction. Carriers will not move products around or through the property.

Please use the delivery time as a guide. Although we endeavour to deliver within the lead time stated, or on a specific date if you have been contacted directly by a supplier, delays can occur that are out of our control. We cannot accept any liability for any delay in delivery for any reason.

For more information on delivery please see our Delivery FAQs.

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