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18 x 10 Premium Shiplap Reverse Apex Workshop

18 x 10 Premium Shiplap Reverse Apex Workshop

Regular price £2,309.99
Regular price Sale price £2,309.99
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  • Enjoy our 10-year anti-rot guarantee
  • Opt for professional home installation
  • Customise your space with modular design
  • Move the doors and windows to your needs
  • Easy assembly with clear instructions
  • All fixtures and fittings included
  • Strong 12mm shiplap cladding
  • Robust 2" x 1" framing
  • Durable tongue and groove roof and floor
  • Weatherproof mineral roofing felt included
  • Shatterproof styrene windows for safety
  • Made from sustainably sourced timber
  • Handmade in the UK for superior quality
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manufactured in the UK

Why Buy From Waltons

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12mm Shiplap Cladding

Heavy Duty Mineral Felt

Durable Tongue and Groove Roof and Floor

Shatterproof Styrene Windows

Hasp and Staple Lock Included

All Fixtures and Fittings included

Full Instructions and Assembly Kit

Manufactured from Sustainably Sourced Timber

Manufactured in Britain

10 Year Anti Rot Guarantee

Ready Painted and Installed Available

Delivery to Most UK Postcodes

12mm Shiplap Cladding

Heavy Duty Mineral Felt

Durable Tongue and Groove Roof and Floor

Customise your options


Installation Services


Floor Upgrade


Roof Upgrades


Wood Preserver


Treatment Options


Please enter your postcode to choose your delivery slot:



Zone A - FREE

AL, B, BA, BB, BD, BH, BL, BN, BR, BS, CA, CB, CH, CM, CO, CR, CT, CV, CW, DA, DE, DH, DL, DN, DT*, DY, E, EC, EN, FY, GL, GU, HA, HD, HG, HP, HR, HU, HX, IG, IP, KT, L, LA, LE, LN, LS, LU, M, ME, MK, N, NE, NG, NN, NP, NR, NW, OL, OX, PE, PO*, PR, RG, RH, RM, S, SE, SG, SK, SL, SM, SN, SO, SP, SR, SS, ST, SW, TF, TN, TS, TW, UB, W, WA, WC, WD, WF, WN, WR, WS, WV, YO

Zone B - £69.99

BT, CF, DD, DG, DT*, EH, EX, FK, G, KA*, KY, LD, LL, ML, PA*, PH*, PL, SA, SY, TA, TD, TQ, TR*

Zone C - £99.99

AB, PA*, PH*

Zone D - £129.99

IV*, KW*

Zone E - £249.99


Delivery Unavailable -

HS, IV*, KA*, KW*, PA*, TR*, ZE

*Delivery charge/availability may vary based on location within the postcode

    Total: £2,309.99
    Important Info


    18 x 10 Premium Shiplap Reverse Apex Shed

    Our 18 x 10 Premium Shiplap Reverse Apex Shed is one of the largest in our shiplap workshop range. The large interior is perfect for installing plenty of handy storage solutions and work benches for getting the job done. The vast interior gives you a blank canvas to create the ultimate workshop for your tinkering with all your equipment under the same roof. Featuring two opening Styrene glazed windows this workshop is the ideal extra space you need to keep all your tools neatly organised and to provide a space in which all your belongings can be neatly stored.

    Shiplap sheds are created by cladding which comprises of several timber boards stacked on top of one another to form a seamless panel. With a groove at the top of each board, this encourages water run off and ensuring the interior remains dry as well as air tight.

    Our shiplap sheds come with a tongue and groove roof and floor. Hard-wearing and robust, this flooring will easily withstand daily use, such as being utilised as a workshop, and is the ideal option for storing heavier items. 

    In addition, our shiplap sheds are modular in design. This means you can place the doors and windows in any position to suit you and your garden. Need the door right at the end of the shed? No problem! Want the windows all along one side? That’s easy! 

    Shiplap sheds from Waltons are manufactured from thick internal framing, meaning your shed will stand sturdy, tall and proud for many years to come. 

    Customisable Layout

    Available in multiple sizes, our Shiplap sheds are versatile and customisable. Our shiplap sheds and workshops feature a modular design, allowing you to customise the placement of doors and windows to your liking and garden layout. Whether you prefer the door positioned at the end of the shed or windows lining a single side, anything is possible.

    Apex Roof

    With a timeless apex roof, this shed will fit effortlessly into the style and design of any outdoor space. Thanks to its pitched design, it helps create a sense of openness and height inside, meaning you can maximise storage space  without it feeling cramped or claustrophobic.

    All Fixtures and Fittings

    High quality roofing felt is supplied to protect your garden shed from the elements and provide longevity. In addition to this, all fixtures and fittings are supplied as standard, including our comprehensive product instructions helping you install your new shed as quickly and easily as possible.


    This garden building comes complete with Z-braced doors and hasp and staple lock, complete with additional pad lock giving you peace of mind and protection.

    Shiplap vs. Overlap

    Overlap and Shiplap are essentially two different types of shed cladding. Cladding is simply the covering of your building. Overlap cladding is in the name, the boards overlap one another to create a traditional and rustic look. The overlapping design allows rainwater run-off and ensures your belongings are kept dry from the rain. This watertight design will protect from the wet British weather, however overlap cladding isn’t airtight. This means your shed could be susceptible to draughts and moisture.

    Shiplap cladding consists of multiple boards of timber which create a flush panel. Shiplap cladding features a recess at the top of the individual boards which helps water run-off, offering protection against the elements. Not only is shiplap cladding watertight like overlap cladding, but it also has the added benefit of being airtight, meaning belongings are much less at the risk of draughts and dampness. This means shiplap sheds are an ideal choice if you intend on spending time in your shed, as a workshop for example, or are planning to store items that could not risk coming into contact with any moisture. Another added benefit is its aesthetically pleasing smooth exterior, coupled with smooth interior panels, creating a high standard of finish both on the inside and outside of the building. This gives a more premium feel to your garden. 

    If you require any further information, head to our Overlap vs. Shiplap - What’s The Difference? blog post.

    Anti-Rot Guarantee 

    Our garden sheds include a standard 10-year anti-rot guarantee, giving you peace of mind that your building is protected by us. To maintain the validity of the guarantee, it's important to treat your shed annually with wood treatment. This helps prevent fungal attacks and ensures the long life of your new space.

    Treatment Requirements

    This garden shed comes untreated and will need a layer of high-quality timber treatment after installation. Never fear, you can simply add this into your basket as an additional extra and we’ll deliver it alongside your new retreat, so you’re ready to go.

    History of Waltons

    At Waltons, we've been skilfully crafting garden buildings since 1878. Originating with the manufacturing of bee hives, we rapidly expanded to offer a diverse range of garden structures to meet various needs. With nearly 150 years of expertise in creating beautiful wooden structures, we've gained valuable insights along the way. Trust us to bring your garden dreams to life with our long history of craftsmanship.

    Sustainable Timber

    All of our garden sheds are made using only ethically sourced and certified timber and are all made here in the UK by our highly skilled team.

    What do our Customers Say?

    Our dedication to excellence has earned us a prestigious Gold Trusted Service Award from the renowned review site, Feefo. When selecting us for your garden building, rest assured in the confidence that comes with this recognition. From expert pre-sales assistance to knowledgeable aftercare and support, our accolades speak volumes. Join the ranks of thousands who have placed their trust in us to craft and deliver the garden building of their dreams.

    Home Installation Available

    So you can sit back and relax, Home Installation Service by our expert installers is available at an additional cost. They will arrive ready to put up your new storage space to our exacting standards. They’ll tidy up after themselves, so the only thing you have to do is make yourself a cuppa.

    Prior to booking the date of your home installation with us, you will need to have a firm and level base ready for construction.

    Ready Painted and Installed Available

    Let us do all the hard work for you. This building is also available ready painted and installed for an additional cost, just select the option before you add the building to your basket. Choose your favourite colour from one of our serene shades, and your painted garden building will have a stylish and eye-catching look, with a great quality finish. 

    We use premium, fully opaque paint that offers exceptional durability with a low maintenance finish. The paint not only looks great, but also acts as a preservative to protect against weathering, UV degradation, mould and fungal attack.

    For more information please visit our Ready Painted Service page (link:

    Finance Available

    Finance is a great way to spread the cost of your garden building purchase. To make it as easy as possible, we've teamed up with partners, Novuna and Klarna.

    Novuna is available on orders over £500. If you pay within 12 months, you can benefit from 0% interest. Klarna offers several options, such as ‘Pay in 30 Days’ and ‘Split in Three’, both of which are also 0%. So, what are you waiting for?

    Still need unsure?

    If you're still unsure, why not call our expert, friendly sales team on 0800 029 1000. Alternatively, visit our showsite based in Nottinghamshire.


    Please Note: Sizes are approximate only. For specific details, please consult our sales team.

    Imperial Size (ft) 18 x 11
    People Req'd To Build 2
    Anti-Rot Guarantee 10 Years
    Cladding Style Shiplap Tongue & Groove
    Cladding Thickness 12mm
    Roof Material 12mm Matchboard
    Floor Material 12mm Matchboard
    Roof Type Apex
    Door Style Double Door
    Building Type Shed
    Treatment Type Dip Treatment
    Metric Size (Meters) 5.5 x 3.3
    Under 2.5m Tall Yes
    Material Wood

    Imperial Metric
    Width 214.96 in 5.46 m
    Depth 128.74 in 3.27 m
    Eaves Height 70.86 in 1.8 m
    Ridge Height 99.21 in 2.52 m
    Door Width 46.45 in 1.18 m
    Internal Width 99.21 in 2.52 m
    Internal Depth 117.32 in 2.98 m


    You can book your preferred delivery date by either:

    1. By choosing it when placing your order with us.

    2. Through the link provided within your order confirmation email or text message

    If a delivery date is not selected, one of our friendly team will be in touch. They will help arrange a suitable delivery date that fits your schedule.

    Your garden building will be delivered using either a 3.5t, 7.5t or 18t flatbed vehicle. If you believe there may be difficulties accessing your property or the delivery location, please inform us of this prior to your delivery date.

    All our deliveries take place between the hours of 7 am and 7 pm and are carried out by one of our helpful drivers.

    On the morning of your confirmed delivery date, we will contact you by email or text message assigning you a two-hour delivery slot. This means that there is no need to wait in all day! We aim to meet these delivery times wherever possible. However, please be aware that unforeseen circumstances can cause deliveries to take a little longer. But rest assured, we are always working hard to keep delays of this sort to a minimum.

    Also, on your confirmed delivery date, we will send over a link to the Delivery Portal. Here you will be able to track the exact location of your delivery driver.

    Please note that all our deliveries are kerbside only. Our drivers are not permitted to enter your property. If you live in a terraced property, please be mindful to this.

    Our delivery driver will unload your new garden building piece by piece to prevent any damage. Yourself, a friend or neighbour will need to be present during the delivery process. This is to ensure that you are happy with the building and are available to sign for the item where required.

    In certain situations, we may be able to leave your new garden building in an assigned safe location. If this is a service that you require, please contact our Delivery Team on 0800 029 1000, prior to your confirmed delivery date.

    For further information regarding delivery areas and charges please see 'Delivery Charges Explained'.


    We offer a 14 day money back guarantee on all of our items. The guarantee commences from the date which you receive your item and we offer a free collection service as part of this agreement.

    The building must be returned in its original, untreated, resalable condition. Until the item is collected by our courier, it's the responsibility of the customer to ensure that the building remains in this condition.

    As the buildings are sold as DIY kits, we cannot dismantle on your behalf and we cannot be held liable for any third party costs. Once the building has been received by our factory, a full refund will be issued within 1-3 working days.

    Important Information

    What does Dip Treated mean?

    During our manufacturing process, we dip treat our garden sheds. This involves applying a water based colourant to your garden building, protecting your shed whilst it is in storage and transit. However, it is important to note that this treatment is not a preservative. Therefore, your garden building will still require a high-quality timber preservative and waterproofing top coat as soon as possible after construction.

    Where can I find the exact measurements of my garden shed?

    Before purchasing your new garden shed be sure to check the specific measurements of its size in the Specification section of the product listing. As often in product titles, we round up measurementsto make it easier for you to find your perfect garden building.

    How will my new garden shed arrive?

    Your new garden shed will be supplied as a flat-pack DIY kit with full instructions. If you're taking on the project yourself, be sure to check out our Self-Installation and How to Build a Shed advice pages for plenty of helpful tips.

    We strongly advise if you are planning on using a third party installer to construct your log cabin that you do not book their services until you receive and are happy with your garden building. As we do not cover any third party cost in the instance of a failed delivery or a damaged item preventing installation.

    Please note that this shed has been dressed to look its very best in our product images. Any accessories or fixtures featured are not supplied with this garden building. Also, unless our Ready Painted and Installation Service is selected, all of our garden sheds are delivered unpainted.

    Does my new garden shed come with any guarantees?

    As standard, this garden shed includes a 1 year Manufacturers guarantee, as well as a 10 Year Anti-rot Guarantee* Just make sure to follow the product instructions and our manufacturers recommendations and your guarantee will be good to go.

    What does my 10 Year Anti-rot Guarantee cover?

    All of our Dip Treated garden buildings benefit from our 10 Year Anti-rot Guarantee. This will cover your garden building against fungal decay as long as the conditions of the gurantee have been followed.

    These conditions include treating your new garden building with a high-quality timber preservative and waterproof top coat.Treatments of this sort should be applied as soon as your garden building has been constructed, and reapplied annually thereafter. This will enable you to maintain your 10 Year Anti-rot Guarantee and will keep your garden shed in tip-top condition!

    Please note that our 10 Year Anti-rot Guarantee does not cover your garden building from the movement of timber that takes place over time. This includes; the twisting, warping and splitting of timber.

    For more information on our 10 Year Anti-rot Guarantee please refer to our Terms and Conditions.

    Does my new garden shed require planning permission?

    We work hard to design all of our garden buildings to adhere to the planning permission guidelines. However, we cannot guarantee that planning permission will not be required. Therefore, before constructing your garden building we advise checking with your local authorities.

    What base do I require for my new garden shed?

    A flat, level base is essential when building your new garden shed. We recommend the following bases; concrete, slab paving, ground-level bearers or a wooden frame.

    Prior to building your garden shed be sure to check your base is level in both directions. If the base of your shed is not level when it is constructed it will cause the building to twist and warp with the natural movement of the timber. Therefore, it is really important to adjust your base accordingly to achieve this before constructing your garden building.

    For more information on how to build a suitable base take a look at our handy guide. - How to Build a Shed Base

    How do I care for my new garden shed?

    To ensure your garden shed stands the test of time its important to follow the guidance outlined in your buildings product instructions and Manufacturers Recommendations.

    We have also created these super handy Maintenance Guides to help you take care of your shed. They are full of our expert advice and useful tips so you can enjoy your shed for years to come!

    However, if you do need any further support, don't worry we are on hand to help. Just give our friendly Customer Service Team a call on 0800 029 1000.

    How do I care for my garden buildings Styrene windows?

    A clear film is used to protect your Styrene windows. Once your shed is installed and treated this will need to be removed. This can be done by simply scoring around the edge of the window and peeling back the plastic covering.

    The windows of our garden buildings are designed to fit well. However, over time due to the natural movement of the timber small gaps can occur. To prevent this from occurring make sure to seal your Styrene windows with a silicone sealant.

    To see exactly how to do this, take a look at our Protect Your Shed - Silicone Window Sealant video.

    Frequently Asked Questions

    Can I choose a delivery slot?

    We will contact you on the morning of your confirmed delivery date by email and/or SMS with a 2-hour delivery time slot. We aim to meet these delivery times but during busy periods, deliveries may take a little longer, however we always work hard to keep delays to a minimum.

    What access is needed for my delivery?

    Our drivers are only contracted to provide kerbside drop offs and deliveries. They will NOT bring any of our orders through your home. A driver may offer to take an order further; for instance a back garden but this is ONLY at their own discretion. If you have added our installation service to your order please be aware that they will require full access to your garden. Our installation team will not bring a building through your home as they are not covered by insurance to enter a customer's home. If you have any questions about access or you live in a restricted access zone please contact our sales team on 0800 029 1000. Our team will be able to provide you with more information and specific building information.

    Will I need to help my delivery driver?

    Our drivers DO NOT need your help during a delivery. They will not ask for your help and they can manage all the items themselves. We are not insured to cover any customer injuries and therefore we ask you NOT to help or try and help our drivers while they make a delivery.

    Can't find the answer you are looking for? Checkout our full Frequently Asked Questions OR ask us a question

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