22.8% OFF

Power 12’x4′ Overlap Timber Apex Shed (window or windowless) (single or double door)


A high grade and highly recommended premium quality shed at an affordable price
Highly adaptable modular configuration
10mm thick wall cladding (20mm where overlapped)
40mm overlap to minimise movement
187cm high internal eaves gives plenty headroom inside
Pre-fitted toughened safety glass windows, or ‘windowless’ option
3x zinc galvanized T-hinges and diagonal framing on doors for extra strength and longevity
High performance roofing felt with advanced ‘polyester’ backing
Pre-fitted internal lock with 1x key (no padlock required)
Advanced exterior wood preservative with wax additive
Sourced only using the finest European slow grown sustainable timber.
Door and window flexibility
Rustic Overlap Cladding
Strong internal framing
Extra tall ample headroom inside.
Toughened Safety Glass
Galvanised ironmongery
High performance felt

We accept the following payment methods. All payments are processed by our banking providers Mollie Payments.

We use a 3DS Secure Payment System that is a two factor payment process that connects to your card providers for authorisation. You will presented with a secure payment screen from your bank to approve the payment by using payment codes sent to you directly. This is to help us and for you the customer to combat fraudulent transactions. More information can be found at the footer on our website regarding this process.

Delivery Lead Times on this product can be viewed under the “Additional Information Tab” on this product.

Please visit the bottom footer on our website regarding

Terms and Conditions of Supply

Delivery Information

Installation Information

Returns and Cancellation Policy

In stock

Do you require windows on your shed? See specifications for number of windows included
Do you require your shed to feature a single door or a double door?
Do you require a timber base for your shed?
Installation of Shed- Please check below for further information. Please ensure if you wish for the base to be installed that it is purchased above.
Product total
Options total
Grand total


Made with high grade premium quality timber throughout including roof and floor (no chipboard or OSB).  the Power 12’x4′ Overlap Timber Apex Shed uses 10mm extra thick rustic looking overlap cladding.

The shed can be installed how you want it by allowing you to choose whether to place the doors on the high or low side. All sheds have high grade premium quality timber throughout including roof and floor.

Power Sheds do not use chipboard or OSB unlike many other manufacturers .The Power Apex Shed uses 10mm extra thick rustic looking overlap cladding that is responsibly sourced .

Lock and key, full fixings and instructions included as standard. The shed features include a  heavy duty 28x28mm framing with which double to 56x28mm framing for increased strength, galvanised rust resistant ironmongery, and advanced wood preservative for increased protection. High performance polyester roofing felt is used which makes the shed last longer.

A high grade and highly recommended premium quality  timber shed at an affordable price that comes complete with a 10 Year Manufacturers  Warranty

WINDOW SIZE (if applicable)

Single – 750x1630mm
Double – 1034x1630mm

Shed Base Preparation

You will need a firm and level base for the shed to go on. The shed comes with a T&G floor with floor joists on the underside to lift the building off the ground, but you will still need something firm and level for it to go on. This can be concrete, paving slabs, timber bearers or any other suitable firm and level base. If you have any questions on bases then please get in touch. Some silicone around the windows on the outside would also be beneficial.

The base is slightly smaller than the external measurement of the building, i.e. the cladding should overhang the base, creating a run for water. It is recommended that the floor is at least 25mm above the surrounding ground level to avoid flooding.

If you have not chosen to purchase our Power Base then other suitable bases would include a concrete base or a paving slab base (slabs laid on top of 50mm of sharp sand).

Optional Timber Base (chargeable)

This base is made from 90x50mm pressure treated timber bearers. It is a kit which requires self assembly but comes with the instructions and fixings required to screw it together.

Each base section matches each floor panel perfectly to make assembly easy.


The shed will arrive on a pallet delivered by our trusted courier. It will be delivered on an 18ton vehicle and a tail lift / pallet truck will unload the pallet. If there are any access problems for an 18ton vehicle (similar to the size of a bin wagon) then please advise us when placing the order so we are able to make alternative arrangements.

Additional information

Dimensions365 × 121 × 215 cm

10mm Overlap Boarding

Product Range

Power Sheds

Nominal Size


Shipping (Days)


EAN / Barcode



Toughened glass

Returns Policy


Payment Methods

6220ac0f912013c51947f9c4 1

Online Orders:

When placing an order on this web site, you can enter your card details privately and with confidence using our 128bit SSL secure checkout. We accept most popular debit and credit cards, especially Visa, MasterCard and American Express.

Any cards issued outside the United Kingdom will not get accepted.

Telephone Orders:

When placing a telephone order we will ask for your card details and this information will be entered into a secure checkout, just like our web site. We accept most popular debit and credit cards, especially Visa ,MasterCard and American Express.

PayPal Credit:

The example below represents the typical costs of using PayPal credit as a standard funding method. Interest on your instalment offer is fixed for its duration. To read through the PayPal Credit FAQs, please follow this link: https://www.paypal.com/uk/webapps/mpp/paypal-virtual-credit/faq

Credit subject to status and affordability. Terms & Conditions Apply. www.shedinstallers.co.uk t/a ShedMaster UK is a credit broker and is Authorised and Regulated by the Financial Conduct Authority.

Credit is provided by PayPal Credit, a trading name of PayPal (Europe) Sarl et Cie SCA, 22 – 24 Boulevard Royal L-2449, Luxembourg, authorised and regulated by the Finance Conduct Authority. Finance Services Register no.808214.

Business Orders:

Whilst we offer the same online discount pricing model to everyone, we are happy to accept business custom as well as public. We already service many commercial customers from local government, multi-national companies through to small traders. You can of course place your order online in the usual manner if you wish, but if you’d prefer to make payment by BACS please contact one of our sales advisors for assistance.

Bank Transfer Payments

We do offer the ability to pay by Bank Transfer Payments. Should you wish to do us please call us and we will advise accordingly.

Payment Terms:

Our payment terms are full payment with the order.

Secure Payments:

At www.shedinstallers.co.uk we take security very seriously, so we do our best to keep you secure while on our site. Our security measures include running across a secure server (128 bit SSL – Secure Socket Layer) link that encrypts order information and protects customers against credit card fraud.

Upon clicking the ‘Proceed to Secure Checkout’ button in the order process, orders are transferred to our secure server. Most browsers will show this extra security by displaying a lock icon to confirm that you are in a secure area.

All payments are made by our third party payment gateway providers Mollie. Additional information can be found at https://www.mollie.com/uk/about


Product ID124POA126POA144POA146POA164POA166POA184POA186POA204POA206POA
Product Name12x4 Power Overlap Apex12x6 Power Overlap Apex14x4 Power Overlap Apex14x6 Power Overlap Apex16x4 Power Overlap Apex16x6 Power Overlap Apex18x4 Power Overlap Apex18x6 Power Overlap Apex20x4 Power Overlap Apex20x6 Power Overlap Apex
Product Size12x412x614x414x616x416x618x418x620x420x6
Product external length3650365042504250484048405440544060306030
Product external width1214181412141814121418141214181412141814
Product external length (inc roof overhang)3842384244424442503250325632563262226222
Product external width (inc roof overhang)1314191413141914131419141314191413141914
Product external eaves height1869186918691869186918691869186918691869
Product external ridge height2147228821472288214722882147228821472288
Product internal length3570357041704170476047605360536059505950
Product internal width1102170211021702110217021102170211021702
Product internal eaves height1801180118011801180118011801180118011801
Product internal ridge height2091223220912232209122322091223220912232
Product base length3626362642264226481648165416541660066006
Product base width1190179011901790119017901190179011901790
Cladding thickness (walls)10mm10mm10mm10mm10mm10mm10mm10mm10mm10mm
Cladding thickness (floor + roof)12mm12mm12mm12mm12mm12mm12mm12mm12mm12mm
Framing thickness28x28mm28x28mm28x28mm28x28mm28x28mm28x28mm28x28mm28x28mm28x28mm28x28mm
Door size (w x h)750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm750x1630mm
Window size457x610mm457x610mm457x610mm457x610mm457x610mm457x610mm457x610mm457x610mm457x610mm457x610mm
Number of windows666688881010
Window materialToughened glassToughened glassToughened glassToughened glassToughened glassToughened glassToughened glassToughened glassToughened glassToughened glass
ColourGolden BrownGolden BrownGolden BrownGolden BrownGolden BrownGolden BrownGolden BrownGolden BrownGolden BrownGolden Brown

Delivery / Returns / Upgrades

Fast Free Delivery within the United Kingdom (including Northern Ireland)

Inclusive delivery within the United Kingdom including Northern Ireland.

Delivery is kerbside only. Any request to take the goods further cannot be guaranteed and will be at the discretion of the driver on the day.

The driver cannot assist with unpacking and moving individual components from the pallet. Delivery will be contactless.

*If you live in the Republic of Ireland or a remote area of the UK (Isle of Man, Isles of Scilly, Channel Islands, Scottish Islands) there may be a delivery surcharge. Please call or email for the current surcharge rate before placing your order.

Delivery Period

Delivery will typically be made within

Garden Sheds  and Summerhouses –  3 to 5  working days (1 week)

Log Cabins –15 to 25  working days (3-5 weeks )

All deliveries must be signed for. If we are unable to deliver but arrived on the day you selected but there is nobody in, then we would have to take the package away and there may be re-delivery charges. For this reason please listen out for the doorbell.

The delivery will arrive on a pallet and is unloaded off the delivery vehicle via a tail lift and pallet truck.

Returns and Refunds

Please refer to our Returns and Refunds Information page should you require to return your item or request a refund.

Returns and Refunds Page

Installation Service (Optional Chargeable Upgrade)

All our products are supplied and delivered pre-packed for self assembly. We do offer a Professional Installation service details can be found below. An additional charge is shown should you require this service.

Our installation service rates are applicable to Mainland England, Wales & Southern Scotland including Glasgow and Edinburgh, but not above.

We can install in the following Scottish postcodes: PA, KY, DD, PH, AB, IV and KW, but please note that a installation surcharge will apply, please call us for a quote.

We can install in the following Devon and Cornwall postcodes: TR, PL, TQ but please note that a installation surcharge will apply, please call us for a quote.

Unfortunately, we are unable to  offer installations to Northern Ireland, the Republic of Ireland, the Channel Islands or any other offshore island not stated (such as the Isle of Man and Isle of Wight) , due to its location.

Products ordered with an installation service will first be delivered to your delivery address within the estimated timeframe stated above. Once delivery has been confirmed, the installation team shall then arrange to attend to your property in order to install the structure for you.

The current lead time for installation, following successful delivery is within 10 – 15 working days (2 to 3 weeks from order)
Note that this will lead to the product needing to be temporarily stored at your property after it has been delivered and checked over until the date the installation occurs. We recommend the product to be stored in a safe and dry place such as in a garage, shed, or similar during this interlude period.

We install all leading brands of garden sheds.
Looking for installation only call us now for a quotation!
Email: sales@shedinstallers.co.uk

Your cart is currently empty.