16' x 10' Shed Republic Ultimate heavy-duty Workshop - Single Door (4.88m x 3.05m)
16' x 10' Shed Republic Ultimate heavy-duty Workshop - Single Door (4.88m x 3.05m)
12 - 13 Weeks 3 Year Guarantee Dip Treated Tongue and Groove

16' x 10' Shed Republic Ultimate heavy-duty Workshop - Single Door (4.88m x 3.05m)

Product code:

Built from the finest materials and with exceptionally sturdy framing, this robust workshop shed boasts numerous premium features and offers you outstanding garden storage.

  • Constructed from 12mm redwood shiplap tongue and groove cladding
  • Robust 44mm x 44mm framing (22% thicker for greater strength and stability), plus 12mm-thick tongue and groove floor and roof
  • Market-leading, manufacturer-approved, same-day installation comes as standard
  • Ledged and braced door with extra framing (for yet more strength and security), plus rim lock and heavy-duty galvanised hinges
  • Premium-quality, joinery made, opening windows with toughened glass as standard
Size & Specification
  • 3. Optional Extras
  • Base Options
  • x

    16x10 Plastic Shed Base Kit -


    Avoid the hassle or mess of laying slabs or concrete with our 16'x10' ProBASE plastic shed base kit, when preparing a base for your new shed. It is very quick to install as its interlocking design makes it easy to put together and, though lightweight, it will provide a very strong and durable base for your shed.

    Made from 100% recycled plastic, this shed base is eco-friendly. Also, you can reuse the base if you decide to reposition your shed. The base allows for ventilation and drainage under the shed, helping to keep the shed floor dry.

    To install the base, you simply interlock the square grids together and lay onto a firm, level area of ground. We recommend using 15kg of 10m pea gravel per square (gravel not included).

    Each square is 500 x 500 x 40mm. This pack contains 60 squares. For your convenience, a heavy-duty, commercially-graded membrane is also included.

    • Super strong interlocking grid system shed base
    • Simple to lay and assemble
    • Eco-friendly high quality recycled plastic
    • Ventilated design
    • Includes heavy-duty membrane
  • Building Upgrades
  • 16x10 Life Extending Floor Bearer Suppor...


    16x10 Life Extending Floor Bearer Supports -


    Why do I need Life Extending Floor Supports when I already have supports on my shed? Help Drainage when placed on larger patio bases - Helps Ventilatiion - Prolongs the life of the shed because of the 2 points above.

  • 16x10 Ultimate Slatted Roof


    16x10 Ultimate Slatted Roof -

  • 19mm Floor Upgrade (16x10)


    19mm Floor Upgrade (16x10) -

  • Ultimate Stable Door


    Ultimate Stable Door -

  • Accessories
  • 16' Ultimate Heavy Duty Workbench


    16' Ultimate Heavy Duty Workbench -


    The Shelf-Plus Heavy Duty workbench is designed to fit perfectly against the wall of your Shed-Plus Champion workshop.

  • 10' Hand Made Wooden Shelf


    10' Hand Made Wooden Shelf -

  • 16' Hand Made Wooden Shelf


    16' Hand Made Wooden Shelf -

From as little as £ per month at %APR
See more options
In stock
16x10 Floor Bearers (Life Extending Floor Support)
16x10 Life Extending Floor Bearer Suppor...
16x10 Ultimate Slatted Roof
16x10 Ultimate Slatted Roof
19mm Floor Upgrade (10x8)
19mm Floor Upgrade (16x10)
Ultimate Stable Door
Ultimate Stable Door
16x10 Ultimate Workbench
16' Ultimate Heavy Duty Workbench
10' Hand Made Wooden Shelf
10' Hand Made Wooden Shelf
16' Hand Made Wooden Shelf
16' Hand Made Wooden Shelf
  • Accessories
  • Specification
  • Description
  • Why Choose a Shed Republic Ultimate Workshop?
  • Trustpilot Reviews
  • Delivery


Brand Shed Republic Ultimate
Cladding Shiplap Tongue and Groove
Cladding Thickness 12
Construction Type Shiplap Tongue and Groove
Depth at Base 4901
Depth including Overhang 4989
Door Height 1803
Door Type Single Door
Door Width 889
Eaves Height 1727
Floor Material Tongue and Groove
Floor Thickness 12
Framing Size 44 x 44mm
Size 16' x 10'
Glazing Material 4mm Toughened Glass
Guarantee 3 years
Height at Highest Point 2464
Height at Lowest Point 1727
Locking System Rimlock
Number of Windows 2 windows
Ridge Height 2464
Roof Covering Felt
Roof Material Tongue and Groove
Roof Thickness 12
Roof Style Apex
Material Wooden
Treatment Dip treated
Width at Base 3072
Width including Overhang 3188


One of our strongest sheds, the 16x10 Ultimate Heavy-Duty Workshop - Single Door is handcrafted from the highest-quality European softwood. The spacious interior offers you plenty of storage room while the generous eaves allow you to work effectively wherever you are in the building and enhance your vertical storage options.

Equally impressive as a garden workshop, a secure space to store your heavy-duty machinery or a durable place for protecting your garden furniture and equipment from the weather, this workshop shed will prove a reliable and hardworking outdoor building for many years to come.

Our entire range of custom made Ultimate sheds and workshops is built from premium quality materials. This one is constructed from 12mm redwood shiplap tongue and groove panels, ensuring an exceptionally robust structure. The sturdy 12mm tongue and groove floor will comfortably support the weight of your heavier items and has been fitted with joists to provide the necessary elevation to avoid rot caused by ground moisture. For longer lasting protection against the elements, this shed features a 12mm tongue and groove roof with superior-graded, polyester-reinforced roof felt too. Robust 44x44mm framing and cross framing has been used inside the shed to ensure outstanding structural support.

Two opening windows provide plenty of natural light and ventilation, perfect for when you’re hard at work inside. These windows are glazed with toughened glass. To complete the workshop's superior finish and keep your stored items safe, the ledged and braced door is fitted with extra framing, an integral rim lock and heavy-duty galvanised hinges.

Market-leading, manufacturer-approved, same-day installation comes as standard. Please ensure a suitably-sized hard, flat base is ready in advance of the installers’ visit. You have the option to add Life Extending Floor Supports to your order. These are installed between the ground and the workshop shed's floor joists. They provide extra protection from damp by increasing the distance between the building and the ground, so allowing better air circulation. The result is enhanced stability and longevity for your shed.

This garden building is protected by Aquashield, supplied with a 3-year anti-rot guarantee and 1-year structural guarantee. You must retreat it annually with a high-quality wood preservative to keep the wood protected and validate the anti-rot guarantee.

Free delivery is available to most UK postcodes.

  • Professionally handcrafted from premium 12mm redwood shiplap tongue and groove cladding
  • Robust 44x44mm framing with 12mm-thick tongue and groove floor and roof
  • Market-leading, manufacturer-approved, same-day installation comes as standard
  • Quality ledged and braced door, with extra framing, integral rim lock and heavy-duty galvanised hinges
  • High-quality, joinery-made, opening windows with toughened glass as standard
  • Superior-graded, polyester-reinforced roof felt
  • Extra eaves height for a more practical and flexible working and storage space
  • Supplied with a 3-year anti-rot guarantee and 1-year structural guarantee, periodic retreatment required
  • Includes all fixtures and fittings
  • Professionally finished with barge boards and diamond finials manufactured from smooth-planed timber

Shed Republic Ultimate Heavy Duty Workshops


If you need a seriously heavy-duty garden building, you simply can’t go wrong with a Shed Republic Ultimate Shed or Workshop. Available in a huge range of designs and sizes, these workshop sheds are expertly built in Great Britain from the finest timber, with extra-thick framing throughout. They are carefully treated against rot and fungal decay too, so, with periodic retreatment, will remain an invaluable and much-admired fixture in your garden for many years to come. Other notable features are a premium 12mm tongue and groove floor and roof, robust door framing, a key-operated lock and toughened glass. Market-leading, manufacturer-approved, same-day installation is included as standard too, providing you with the Ultimate Shed buying experience.



The extra eaves height on an Ultimate Workshop opens up a wide range of storage possibilities, giving you the opportunity to store taller items and maximise valuable floor space. Raised eaves also mean increased headroom, for a more comfortable working environment.


Furthermore, higher eaves allow for a taller door. This gives you better access to your workshop and makes it much easier to store and retrieve larger items.

  • doors

    The exceptionally high calibre of the Ultimate Range is epitomised by their fully ledged and braced doors. Secured with heavy-duty hinges, these doors benefit from additional framing to eliminate the danger of warping and sagging. Also, unlike many other workshop sheds, a key-operated rim lock is supplied as standard.

  • cladding

    For the Ultimate strength, style and weather-resistance, most of these sheds and workshops are expertly crafted from interlocking 12mm redwood shiplap tongue and groove cladding. The exception is the Ultimate Barnstyle Range, which utilises 16mm pressure-treated featheredge boards for enhanced levels of insulation.

  • roof

    Don’t underestimate the importance of a high-quality roof as it is your shed’s first line of defence against the elements. Ultimate roofs are made from 12mm tongue and groove wood, fitted with superior-graded, polyester-reinforced felt, for outstanding weatherproof protection and a tidy finish.

  • floor

    The 12mm tongue and groove floor is elevated by pressure-treated joists for extra protection from ground moisture. Due to its thickness, an Ultimate floor improves the shed’s level of insulation and will neither buckle under the weight of heavier items nor regular footfall.

  • framing

    One of the many things that really sets an Ultimate Workshop Shed apart from its competitors is its super-robust 44mm x 44mm frame, which is far thicker than on most other sheds and diagonally braced to provide even greater stability.

  • glazing

    Ultimate Sheds and Workshops don’t skimp on the quality of their windows either. Not only are they always glazed with toughened glass, they have four different latch settings too, so you can enjoy welcome ventilation on a hot summer’s day and optimise garden storage conditions the whole year round.

Made in the UK

3 year anti-rot guarantee

Dip treated

shiplap tongue and groove

Dip Treatment Process Explained

Dip treatment is a tried and tested method of applying wood preservative to timber products, and the process is fairly straightforward. First, the timber is dipped into a cylinder containing a powerful wood preservative. The preservative is then absorbed into the surface of the timber and, after it’s removed and left to dry, it will be thoroughly protected it against both rot and fungal decay.

After the dip treatment process is completed, the timber will have a lovely orangey-brown hue, ensuring it will become an attractive feature of your garden, as well as complementing most fence panels. Of course, you can choose to stain your dip treated shed another colour upon assembly. If you’re interested in an affordable, practical, and sturdy dip treated shed, why not take a look at our featured products below?

step 1

Timber is dipped into a cylinder containing preservative

step 2

Preservative is absorbed into the surface of the timber

step 3

Timber is removed from the cylinder of preservative

step 4

Timber is left to dry.



Trustpilot Reviews


Shed Republic Delivery

Shed Republic Delivery 

We offer FREE Delivery to mainland England and Wales postcodes (Highlands & Islands Excluded). A delivery surcharge applies to mainland Scotland south of the Caledonian Canal (see surcharges below). Please use our postcode checker above or within checkout to check delivery is available to your area.


Please allow up to an additional 5 working days for delivery to the following postcode areas: BB, BD, DA, HD, HG, HX, LS, ME, TN, WF

Please allow up to an additional 10 working days for delivery to the following postcode areas:

£0 - CA, CT, DH, DL, EX, HU, LA, LL, NE, PL, SA, SR, SS, SY, TQ, TS, YO.      £119.99 - AB, DD, DG, EH, FK, G, KA, KY, ML, PA, PH, TD.      £239.99 - TR

Unfortunately we can not deliver to the following post codes: BT, GY, HS, IM, IV, JE, KW, PA20-80, PH32-44, PO30-41, ZE

The Delivery Process

Our delivery team will contact you to arrange a convenient delivery date that falls within the lead time shown against the product.

All of our products are delivered sectional, direct to your home and are supplied with a set of instructions to help you get started.

Wherever we can, our drivers will deliver the product to the location on your property that you specify. It is important though that the drivers have suitable access and no restrictions (ie height restrictions) for them to be able to do this. We would not risk damaging your property whilst delivering a product to an unsafe location. Some buildings will not pass through standard doorways in houses. However, if the only access is through the house then buildings can be adapted to pass through the house at a small additional cost. Please call to seek advice.

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Representative Example
  • Purchase Rate 21.9% p.a. (variable)
  • Representative 21.9% p.a. (variable)
  • Assumed Credit Limit £1200