6' x 4' Yardmaster Castleton Anthracite Metal Shed (1.86m x 1.25m)

Product code:

From £259.99 Regular Price £269.99

To £397.47 Regular Price £411.47

Astutely designed and constructed exclusively from superior materials, this stunning garden shed is the perfect place to store all of your tools and outdoor furniture. Furthermore, this premium metal shed is backed by a superb 15-year anti-rust guarantee.

  • 15-year anti-rust guarantee
  • Constructed exclusively from hot-dipped galvanised steel
  • Double doors are padlockable and include Weatherseal technology
  • Galvanised steel apex roof
  • Anchor kit included
  • Please note the sliding doors are sited on the 6ft side
Size & Specification

Shed Only
6' x 4' Yardmaster Castleton Anthracite Metal Shed (1.86m x 1.25m)   + £259.99
Optional Floor Support Kit

Floor Support KitManufactured from high strength galvanised steel, this steel floor support frame is highly recommended should you require an internal raised floor for your metal shed. The floor support frame is installed inside the shed following shed construction to provide a raised floor above the concrete base of the shed foundation. Please note - timber floor material not included and floor kits are not returnable on their own.

Optional Integral Shelving

3 Tier Shelf UnitFully adjustable 3-tier shelf unit for the storage of small tools and equipment. Its unique design allows it to be fitted to multiple locations. Best installed at the time of shed assembly as retrofitting is more complex.

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  • 3. Optional Extras


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  • Specification
  • Description
  • Why choose a Yardmaster Metal Shed?
  • Trustpilot Reviews
  • Delivery


Assembly Time (estimated) 4-6 Hours
Anchor Kit Included Yes
Brand Yardmaster
Colour Anthracite
Door Type Double Doors
Eaves Height 1630
Size 6' x 4'
Ridge Height 1890
Roof Style Apex
Material Metal
Treatment Galvanised
Guarantee 15 years
Depth at Base 1250
Depth including Overhang 1370
Width at Base 1860
Width including Overhang 2020
Door Height 1570
Door Width 800
Locking System Padlockable (not included)


Astutely designed and constructed exclusively from superior materials, the 6 x 4 Yardmaster Castleton Anthracite Metal Shed is the perfect place to store all of your garden tools and outdoor furniture.

This premium metal shed is expertly constructed from hot-dipped galvanised steel and finished in anthracite, providing it with an absolutely stunning appearance. This handsome shed’s aesthetic appeal is further enhanced by an elegant steel apex roof and the exclusive use of stainless steel fixings.

The sliding double doors provide you with excellent access, making it simple to store your tools and quickly remove them for immediate use. The doors are padlockable (padlock not included), to deter prying eyes, and utilise Weatherseal technology to ensure that your prized possessions are completely protected from the elements. You will find that the high gables allow plenty of headroom, ensuring a pleasant working environment, whilst the ventilated roof further enhances your comfort and provides perfect storage conditions too.

Rust-proof, rot-proof and pest-proof, this superior metal shed is maintenance-free and boasts a superb 15-year anti-rust guarantee, saving you money and leaving you more time to do the things you enjoy.

**Please note that this metal shed comes without a floor (unless floor support kit selected) and should be erected on a level concrete or paved base. The optional floor support kit does not include a timber floor. If purchasing the floor support kit it cannot be returned alone should you decide not to build a floor.**

An anchor kit is provided to ensure your shed enjoys effective support, whilst a clear instruction manual (including UK manufacturer helpline) is supplied to aid a simple assembly. Delivery is free to most UK addresses.

  • 15-year anti-rust guarantee
  • Constructed exclusively from hot-dipped galvanised steel
  • Double doors are padlockable and include Weatherseal technology
  • Galvanised steel apex roof
  • Anchor kit included
  • High gables and ventilated roof
  • Stainless steel fixings
  • Free delivery to most UK addresses
  • **Comes without flooring but optional floor support kit is available in the options**

Yardmaster Metal Sheds

Why choose a metal shed?

Yardmaster produce maintenance free, hot dipped galvanised steel sheds featuring Yardmaster’s trademark 7-layers of protection. The result is a construction that is 25% stronger than that of other European sheds. A brand and a shed you can rely on.

These sheds have a range of excellent benefits, detailed in the images below.

Please note: The Woodview, Castleton, Emerald Deluxe and Shiplap ranges feature a 15 year guarantee. All other Yardmaster models offer a 10 year guarantee. All Yardmaster metal garden sheds come complete with an anchor kit to secure your shed to a concrete or paved base and can be supplied with or without a floor (please check the individual specifications).

  • An anchor kit is supplied to secure your shed to a concrete or paved base.

  • Padlock-ready handles with anti-tamper bolts. (padlock not included)

  • Internally mounted, overlapping double sliding doors.

  • Stainless steel rust-free screws.

  • Ventilation along eaves and roof ridge to combat condensation. 150mm wide ridge cover aids airflow while preventing rain penetration.

  • Spacious headroom. High gables on all apex models - up to 2.2m headroom and up to 1.8m eaves.


Easy to maintain

Unlike wooden sheds, these metal sheds are completely maintenance free. Neither the weather or pests are a problem for Yardmaster’s quality build. Their advanced baked on finish looks fantastic for years with no need for repainting or rust proofing.


Easy to Build

With just a helping pair of hands and Yardmaster’s illustrated manual, you can have your metal shed ready for use in approximately 3-6 hours. Should you need further assistance, Yardmaster provide local helplines.

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Trustpilot Reviews


Forest Garden Delivery

Forest Garden Delivery 

We offer FREE Delivery to the majority of mainland UK postcodes but some areas may incur an additional carriage charge (see below) and some postcode areas are not covered at all. Please use our postcode checker above to check delivery is available to your area.

£49.99 - KW1-14,  £54.99 - IV,  £59.99 - PO30-41, IM,  £69.99 - PH32-41,  £79.99 - KA27-28, KW15-17, PA and  £129.99 - HS


Our Express Delivery option is only available on selected Yardmaster sheds and isn't currently available to the following postcodes: AB, BT, BS, CF, DD, DG, EH, FK, G, HS, IV, KA, KW, KY, LD, LL, ML, NE, NP, PA, PH, SA, SY, TQ, ZE and the Isle of Wight, Isle of Man, Channel Islands, Scottish Islands.

Delivery lead times vary for Yardmaster products so please see the individual product's lead time. Also, please note that this lead time will be extended by a further 5 working days for the following postcodes:

AB, BA, BH, BS, DD, DT, EX, FK, HS, IV, KW, KY, PA, PH, PL, SA, SY, TA, TR, TQ, ZE and the off shore part of KA.

All products are delivered in a boxed, flat packed, sectional format, from the manufacturer to your home and are supplied with full instructions, ready for DIY assembly.

The delivery of this item is typically made via an independent courier. The carrier will contact you to arrange an acceptable delivery date based on the typical lead time stated for the product. If you haven't heard anything about the delivery of your shed towards the end of the 10 working days then please contact us. If you will be unavailable on the day of delivery, the driver can leave your order in a safe place. Please indicate this when placing your order or booking in your delivery as re-delivery charges may be levied if the delivery fails on the date agreed.

Upon Delivery

Delivery is typically between 7am and 7pm. Unfortunately, we are unable to specify a timed delivery.

The drivers are only insured to deliver to curb side or driveway. We would not risk damaging your property whilst delivering a product to an un-safe location. Unfortunately we will not be able to go through your property.

Please Note - delivery is NOT available to the following locations: Channel Islands and Scottish Islands.


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