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Detailed Specification

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

Product Name: 3 x 6 (0.83m x 1.81m) Mercia Overlap Pent Storage Unit
Footprint (Depth x Width): 0.749m x 1.760m (2'5" x 5'9")  (Excluding Roof Overhang)
0.836m x 1.812m (2'9" x 5'11")  (Including Roof Overhang)
Height to Ridge: 1956mm(6'5")
Height to Eaves: 1839mm(6'0")
Walls: 7mm Overlap
Framing: 28mm x 28mm (11/10" x 11/10")
Door: Double Door
Door Opening (Height x Width): 1630mm x 1278mm (5'4" x 4'2")
Door Lock: Padbolt (padlock not included)
Roof Type: Pent
Roof: 8mm oriented strand board (OSB)
Roofing Felt: Green Mineral
Floor: 10mm Solid Sheet Board
Floor Joists: 28mm x 28mm (11/10" x 11/10") 
Floor Joists Direction: Front to Back
Window(s): N/A
Window / Wall Panels: N/A
Window Glazing Material: N/A
Windowless Option Available: N/A
Treatment: Golden Brown Base Coat Dip Treatment
Portabases Available: N/A
Manufacturer's Guarantee: 10 Year Anti-Rot Guarantee
FSC Certified: Yes
Free Delivery: Yes*
Assembly Available: Optional or N/A
EAN Number: 5029442073897
Recommended Treatment: Protek Range** (please click here
Manufacturer: Mercia Garden Products Ltd


** We offer a selection of Protek paint within the options section of this product page.  If selecting from this product page the treatment will be sent with your order.  If ordering from the link the treatment will be sent separately.


Those looking for a trusty storage space for those items that are best stored outdoors, like bikes or gardening tools, should consider the compact option of this 3 x 6 Mercia Overlap Pent Storage Unit as well as traditional, larger sheds. Once assembled, this simple and understated unit will fast become your go-to place to stow items when tidying and organising the garden. For a low cost, any owner will have an excellent solution for outdoor storage, and even have the ability to securely lock their items if they choose to add a padlock to the galvanised bolt that comes with this storage unit. The rustic look of overlap timber pairs well with many of the classic colours offered by Protek's collection of wood preservatives that are available for purchase with your storage unit.


While this affordable storage unit is compact and looks simple, it is surprising how many details go into making it convenient to use and long-lasting. For example, the overall shape of the unit is ideal for storing taller items like rakes or sun loungers while keeping the compact footprint that stops the storage unit from consuming too much of your garden's available space. Double doors make accessing items inside your storage unit an easier experience, and these doors are ledged for improved strength. Galvanised steel hinges ensure these doors can open and close for many years without the need to worry about rust.

With the inclusion of rough sawn timber, the 7mm wall cladding of this unit has an attractively rustic look and immediate appeal. Each piece of timber is angled and overlapped to offer improved overall resistance to the elements, by aiding the run-off of water. The timber used has been dip-treated for a good level of protection from rot and insect infestation during transit and assembly at home, as well as being sourced from sustainable forests only (FSC certified). Backing up this timber cladding is a robust internal frame made with 28mm x 28mm timber. Solid sheet board, used for both the roof and floor, completes the storage unit with its rugged strength and water resistant properties.

Additional Information

elbec always recommends the application of a high-quality wood preservative, such as those found in the Protek range available for order with your storage unit. This is especially important after assembling a garden building that has received a dip-treatment, which offers timber the necessary protection from damp during transit and construction, but will need further treatment. Ensure you have read the full details of the 10-year anti-rot guarantee offered by manufacturer Mercia to learn what steps you will need to take to care for your storage unit in future years, allowing you to get the most out of the fine timber materials used.

This item is delivered in a disassembled state with every part and fixture needed to put the storage unit together at home. We suggest enlisting the help of a friend or family member when completing your 3 x 6 Mercia Overlap Pent Storage Unit. Some previous experience in similar projects will be advantageous, but any determined customer can expect the assembly process to be finished within one or two days.



What is included?

  • Pent roof helps run-off of rainfall, reducing the risk of damp
  • Galvanised steel pad bolt can be fitted with a padlock to secure items inside
  • 7mm overlap cladding uses sustainably sourced (FSC certified) timber that has been dip-treated for the necessary protection during delivery and assembling
  • Free UK mainland delivery with an option to pick your own delivery date
  • Robust solid sheet board roof and floor
  • Supported with 28mm x 28mm internal timber framing
  • Mineral roofing felt included for extra resistance to wet weather
  • Manufacturer guarantees 10 years of no rot (read details to learn how to care for your shed and keep this coverage for the full period)
  • Windowless design is ideal when keeping attention away from items inside
  • Compact size is ideal for storing gardening equipment without encroaching onto your garden space


ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. All of our Mercia products are delivered flat packed other than fence panels (which are delivered fully constructed), direct to your home, and are supplied with a set of instructions to support assembly.

Booking Delivery

You will be required to book your delivery date at the time of placing your order (except for Metal Shed). Our 'Request a Delivery Date' service is available to the majority of areas and you'll find that the majority of the UK postcodes are FREE but some areas may incur a delivery surcharge and some postcodes are not covered at all. Select a 'requested delivery date' by entering your postcode in the 'Request a delivery date' section above. You will also be notified at this time if your area incurs a surcharge or delivery is not covered in your area.

Prior to Delivery

On the morning of your delivery date, you'll be sent an update by text with an estimated 2-hour delivery slot (this update can only be provided where a mobile number has been supplied on the billing address section at the time of checkout) together with a link to the manufacturer delivery portal where you'll be able to track your order.

Please note: Mercia Metal Sheds ONLY - your order is delivered by a courier you will not be notified prior to the delivery. If you are not in on the day of the delivery you will be carded and asked to contact the courier to arrange a new mutual delivery date. The estimated delivery lead time for Mercia's Metal sheds is identified on the product for the metal shed. Lead times are on working days (Monday - Friday) excludes Bank Holidays. These estimated lead times are provided by the manufacturer. Some remote areas will take a little longer.

Upon Delivery

Your order is delivered either kerbside or driveway and will be delivered on either a 3.5T, 7.5T or 18T Lorry. Unfortunately due to health and safety and insurance liabilities the driver will not be able to take your goods around to the back of your property but may upon request place the product at the side of the house if there are no access or restriction issues. We would not risk damaging your property whilst delivering a product to an unsafe location. Unfortunately, we will not be able to go through your property.

We would recommend against arranging for a third party to install the building before it's been delivered and checked that all parts are present, as we cannot be held liable for any third-party costs.


Orders with Assembly 

The lead time for our installation option is around 12 weeks from the date of order. With the installation option, the majority of orders will have their delivery and installation on separate days; there will be a small number of orders which will have delivery and installation on the same day. You will be advised by the manufacturer's installation team which category your order falls into.

Depending on the installation option for your order, you will be contacted within the delivery timescale and given a date for either delivery/assembly on the same date or a separate date for delivery and assembly.

3 x 6 (0.83m x 1.81m) Mercia Overlap Pent Storage Unit


Product code - 20010155


Description Information

The 3 x 6 Mercia Overlap Pent Storage Unit is a convenient and subtle way to store gardening equipment and other items outdoors without the need for a shed that takes up precious space. Some key features of this unit are as follows:

  • 10-year anti-rot guarantee from manufacturer Mercia provides owners with the confidence they need in future years
  • Lock by simply attaching your own padlock to the galvanised steel bolt featured on the unit's double doors
  • 7mm overlap timber is dip-treated for initial protection and diverts rainwater away from stored items
  • Generous height for ease of storing tools like rakes and other items (6'5" height to ridge)

View full specification Delivery

Usually delivered: Use Pick A Day delivery below for your earliest delivery date to your Post Code.

Note: Currently not available for delivery to Offshore Post Codes.

excludes installation option
Choose additional options
Protek Wood Stain and Protector for Mercia Products
Protek Wood Stain and Protector 5 litres - Gun Metal Grey£29.99
Protek Wood Stain and Protector 5 litres - Chestnut£29.99
Protek Wood Stain and Protector 5 litres - Silver Fir£29.99
Protek Wood Stain and Protector 5 litres - Ebony£29.99
Protek Wood Stain and Protector 5 litres - Teak£29.99
Protek Wood Stain and Protector 5 litres - Sky Grey Blue£29.99
Protek Wood Stain and Protector 5 litres - Cornflower£29.99
Protek Wood Stain and Protector 5 litres - Dark Oak£29.99
Protek Wood Stain and Protector 5 litres - Clear Top Coat£29.99

Your choices:

  • 3 x 6 (0.83m x 1.81m) Mercia Overlap Pent Storage Unit£349.99