Description

Accessing this vast timber hub is straightforward, thanks to a generously proportioned double door that allows owners to carry bulky building materials inside without awkward angles. Beneath your feet, the foundation consists of thick tongue-and-groove boards designed to accommodate heavy storage units and professional-grade workbenches. Sturdy bearers support this robust floor, elevating the entire building to help isolate the timber from ground moisture.

Uncompromising durability lies at the heart of this design, which utilises premium tongue-and-groove cladding across the entire exterior. These interlocking boards create a highly rigid shell that helps repel driving rain and withstand severe UK weather. Every timber component arrives completely pressure-treated, an industrial process that forces preservatives deep into the grain to secure an outstanding 25-year guarantee against rot and remove the need for yearly painting.

Stretching across a commanding 20 x 10 footprint, the interior enjoys superb vertical clearance provided by the sharply pitched apex roof. A massive bank of glazing, comprising 7 fixed windows and 1 opening window, ensures the workspace remains brightly lit from morning until evening. Buyers seeking extra ventilation during the height of summer can also specify an upgrade to 2 opening windows to maintain a comfortable temperature while working inside.

Pressure-Treated Wood with a Timberdale Guarantee – Built to Last and Minimise Maintenance:

This structure is expertly engineered to provide a long lifespan with minimal upkeep. The timber undergoes a thorough pressure-treatment process, drawing protective preservatives deep into the wood grain to help resist decay. This advanced process is supported by an industry-leading 25-year anti-rot guarantee. While the treatment may initially leave a slight greenish tint, this is a normal characteristic that will gently weather into a natural silver-grey over time.

Completely maintenance-free, the timber will never require annual preservative applications, EVER. With a Timberdale Shed, you save an estimated £200 in time and treatment costs over its lifespan compared to standard dip-treated sheds. Should you wish to customise the colour, the manufacturer advises that you ensure the treatment you choose is recommended for pressure-treated timber. elbec recommends Protek wood treatment; you can browse our Protek Royal Exterior Wood Finish Paint range to find the best shed paint to add your own finish.

Fully Modular Design:

The shed benefits from a highly adaptable modular architecture, ensuring seamless interchangeability between same-sized panels. By delivering the building in smaller, more manageable sections, the assembly process becomes significantly more straightforward and less physically demanding. This intelligent design inherently uses more timber, resulting in a heavier, more stable construction while granting you complete flexibility in how you configure the layout to suit your garden.

Walls, Floor, and Roof:

Superior structural integrity is achieved through 12mm tongue-and-groove cladding affixed to a substantial 28mm x 56mm internal frame, creating a tight interlocking seal to help resist moisture ingress. The base features hardwearing 12mm tongue-and-groove floorboards, perfectly capable of supporting weighty items, resting securely on pressure-treated bearers that help isolate the structure from ground moisture. Overhead, the 12mm tongue-and-groove roof is shielded by premium, reinforced polyester-backed mineral felt, designed to help keep the interior environment dry and well protected.

White Glove Delivery Service:

This shed is delivered using Forest's premium White Glove Delivery Service. The specialist team will deliver the components directly to your chosen spot in the garden, saving you the effort of heavy lifting. As part of this service, they will also remove and take away all packaging, leaving your garden tidy and ready for assembly.

Optional Upgrades:

Professional Installation:

This wooden shed is supplied flat-packed for self-assembly. For ultimate convenience, you can choose our professional installation service.

Once your order is placed, the manufacturer’s installation team will send a short pre-installation questionnaire. This simple check confirms that your site is suitably flat and level, ensuring the installation day runs smoothly.

If your foundation is prepared and access is clear, the expert installers will handle the complete build. Please note that the installation team cannot dismantle or remove old buildings.

Whether you build the shed yourself or use our service, please ensure a 24-inch (60cm) clearance is left around the entire structure. This space is essential for both the assembly process and any future maintenance.

Wooden Shed Base Kit:

A solid, level base is vital for the longevity of your shed. All Forest Sheds have a floor included as standard. This optional wooden shed base kit does not replace the included floor but fixes to it to provide support and help create a level surface. The base kit provides a fast, cost-effective, and simple DIY solution, an excellent alternative to laying concrete or paving slabs. The kit consists of a robust framework made from UC4 incised timber, which has been pressure-treated to the highest standard for permanent ground contact.

Features:

25-Year Anti-rot Guarantee: Long-lasting protection and peace of mind

UK Made: From sustainably sourced timber

Pressure Treated Timber: No need for additional preservative treatment

Walls Construction: 12mm tongue-and-groove

Floor: 12mm tongue-and-groove for handling heavy loads

Roof Style: Apex

Roof: 12mm tongue-and-groove with reinforced polyester mineral felt cover (felt colour supplied may vary)

Frame: 28mm x 56mm for strength and stability

Floor Bearers: 28mm x 56mm - pressure-treated

Windows: Windowless

Windows: 7 Fixed windows (1 opening windows) or 6 Fixed windows (2 opening windows)

Doors: Double

Lock Type: Rimlock (supplied with 2 keys)

Sizes Available: Timberdale sheds are available in a range of designs and sizes

Make the Most of Your 20 x 10 Forest Timberdale Shed

The monumental 20 x 10 floor plan transforms this building from a simple storage unit into a magnificent garden workshop or a dedicated hobby studio. Abundant sunlight streams through the 7 fixed windows and 1 opening window, creating an inspiring environment for detailed carpentry, restoring antique furniture, or cultivating seedlings. The wide double door makes it incredibly easy to haul in massive bags of compost, large sawn timber, or heavy tool chests, establishing a highly functional workspace for serious domestic projects.

With such a vast expanse of heavy-duty tongue-and-groove timber at your disposal, you can systematically organise decades' worth of family belongings, outdoor sporting gear, and bulky patio heaters. You can confidently mount extensive wall racking systems directly to the robust framework to keep the floor completely clear. Most importantly, the factory-applied pressure-treated protection and reliable 25-year guarantee ensure this apex giant stands strong year after year, letting you focus entirely on your hobbies rather than property upkeep.

About Your Order:

The simple design and flat-pack delivery make it easy to assemble. Proudly handcrafted from sustainably sourced timber in the UK, it arrives with all fixings and clear instructions for a straightforward assembly.

Please note: Images may depict furnishings and accessories; these are for illustration purposes only and are not included with your order.

About Forest:

Forest is one of the most trusted manufacturers of garden timber products in the UK. They have been producing high-quality wooden garden buildings for over 50 years. Forest is proud to be a British company and uses sustainable British timber in its products.

The company is at the forefront of design and offers an excellent range of contemporary summerhouses and modern sheds. All Forest garden buildings are made to make Britain a nation proud of its gardens. Superior quality, cutting-edge design, and excellent security are why Forest has become one of the top choices for customers when buying a garden product.

Frequently Asked Questions (FAQs)

Do I need to apply a wood preservative to my Timberdale shed? No, the entire Timberdale range is fully pressure-treated prior to delivery. This process forces preservatives deep into the timber, making the building maintenance-free and removing the need for any future anti-rot treatments.

Can I choose where the doors and windows are positioned during assembly? Yes. The fully modular design means that panels of the same size are entirely interchangeable. Whether your specific model includes single doors, double doors, or windows, you can arrange these sections during construction to best suit your garden's layout.

What type of base is required for this shed? To ensure stability and validate the 25-year anti-rot guarantee, you must build your shed on a firm, 100% level base. We strongly recommend a solid concrete base, paving slabs, or a purpose-built timber shed base.

Can I paint the shed a different colour? Absolutely. While the timber is maintenance-free and requires no preservative, you can paint it for aesthetic reasons. Please ensure you select a high-quality exterior wood paint that is specifically recommended for use on pressure-treated timber.

Does the shed come with a floor included? Yes, every shed in the Timberdale collection includes a robust tongue and groove timber floor as standard. This is supported by pressure-treated floor bearers to help elevate the building and protect it from ground damp.

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Delivery

ALL DELIVERIES ARE DELIVERED TO KERBSIDE OR DRIVEWAY. All of the Forest 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.

If you have ordered more than one item, they may arrive at different times.

Delivery

With the majority of Forest products, you will be required to book your delivery date at the time of placing your order. 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.

Where 'Request a Delivery Date' is not available on a product, you will be contacted towards the end of your timescale by Forest/their chosen Courier with a delivery date. If this date is not convenient you can reply to the message to book a more convenient delivery date. The delivery timescales are as stated on the product page.

The delivery timescales to these areas may be extended by up to 5-10 working days:
AB, CB, CO, CT, DD, DG, EH, EX, FK, G, IP, IV, KA, KW, KY, ME, ML, NR, PA, PE, PL, PH, TD, TN, TW, TR, TQ.

We are sorry but Forest does not deliver or offer an assembly service to the following Postal Codes:
BT1-BT99, GY1-GY9, HS1-HS9, IM1-IM9, IV41-IV56, JE1-JE5, KA27-KA28, KW15-KW17, PO30-PO41, PO49, TR21-TR25.

Prior to Delivery

Once you have a confirmed delivery date if you provide us with a mobile number this should be the first number and not the alternative number), we can confirm the day before delivery if your delivery will be morning or afternoon.

Upon Delivery

Your order will be delivered kerbside or on your driveway. Due to health, safety, and insurance liabilities, the driver will not be able to take your goods to the back of your property but – upon request – may place the product at the side of the house if there are no access issues. This is to avoid risking damage to your property while delivering to an unsafe location. We will not be able to go through your property.

We advise against arranging for a third party to install the product before its delivered and checking that all parts are present,  we cannot be held liable for any third-party costs caused by delays.

Assembly

If you have selected the service for installation, we can confirm that delivery and installation will occur on different days, and the length of time required for delivery and installation will depend on the specific item you have chosen. You will not be able to pre-book a delivery or installation date when placing your order, as this will be arranged directly with the manufacturer. Within 5 working days of placing your order, the manufacturer will contact you via email to explain how to prepare the base for installation. The base must be either a solid, level timber supportive base, concrete, concrete slabs, or a pro shed base (plastic base). You should ensure that there is a clearance of 18 inches (450mm) of working space around the base so that the installers can access all areas of the structure. Shortly after receiving the email from the manufacturer, you will receive a phone call to schedule a convenient delivery and installation date. Installation may occur within 15 working days of delivery.   Note: This service is not available on all Forest products, please check if this is available for your chosen product under the 'Choose Additional Options' above.

Specification

Quickview

Maximising natural daylight throughout a colossal interior, this 20 x 10 garden building features 7 fixed windows and 1 opening window, alongside a traditional apex profile. The heavy-duty structure benefits from a deeply penetrated pressure-treated finish backed by an impressive 25-year guarantee. Its key features include:

• Pressure treated: With a 25-year anti-rot guarantee - longest on the market.
• Maintenance-free: Preservative is never needed.
• Unrivalled strength: Built using premium 12mm tongue-and-groove timber throughout, fully supported by a robust 28x56mm internal frame to create the strongest shed in its category.
• Adaptable layout: A premium modular design ensures straightforward assembly and grants you the freedom to position your doors and windows exactly where you need them.
• High-grade construction: Includes 12mm tongue-and-groove flooring and roofing, resting on pressure-treated floor bearers and protected by tear-resistant polypropylene-backed roof felt.
• Premium ventilation: Supplied with 4mm toughened safety glass, featuring one opening window as standard to boost airflow, alongside the option to upgrade to a dual-opening setup.