TGB™ DELIVERY: 2-4 Weeks*

*The current lead time for TGB Delivery & Installation to most areas is 2-4 weeks, although bespoke buildings, Tanalised® pressure-treatment, and delivery to remote postcode areas may take longer. At the moment, we are offering a FREE assembly service with these buildings, which will be done at the same time as delivery.

TGB Security Apex Shed (Storm Braced) *FREE ASSEMBLY*

TGB Sheds Security Apex Shed is a high quality storm-braced timber building, and it is DELIVERED AND FULLY INSTALLED in your garden! It comes in several bespoke sizes, it features bolted hinges, padlock protector, high level slit windows and 3x the regular amount of internal framing.


TGB Security Apex Shed (Storm Braced)

tgb lead timeThe TGB Security Apex Shed is a high quality, wooden, apex-roofed shed made with security in mind. The TGB Security Apex Shed is a traditionally built British shed, featuring a high level security window, heavy-duty galvanised bolted hinges, padlock protector, and lots of framing for strength.

The TGB Security Apex Shed is available in 11 popular sizes – 4×4 up to 12×8, all featuring the same level of strength and security, with an unbeatable price.

Our TGB Sheds product range is second to none, featuring hundreds of great quality buildings, accessories and optional extras, however it is difficult to show everything fully on a single web page. We are an OFFICIAL PREMIER STOCKIST of all TGB products, therefore you are welcome to visit our Edinburgh display site to see the buildings in person.



  • FREE delivery*
  • Professionally INSTALLED IN YOUR GARDEN*
  • Brown preservative treatment
  • Narrow security window for light
  • Heavy Duty galvanised hinges (security bolts stop door being unscrewed)
  • Security bolted padlock protector
  • Internal framing at 12″ intervals for strength
  • 16mm nominal (12mm finish) tongue & groove shiplap cladding
  • High quality, slow growing Scandinavian timber
  • T&G floor and roof
  • 11x sizes from 4×4 up to 12×8
  • Bespoke options available



Quality Construction

This TGB Security Apex Shed is manufactured using high quality, slow-growing, sustainable Scandinavian Pine from well managed FSC or PEFC CERTIFIED forests. All models are constructed using 16mm nominal (approx. 12mm finished) tongue and groove shiplap timber walls, along with tongue and groove roofs and floors, however this can be upgraded to a massive 22mm nominal thickness (approx. 18mm finished) if required.

Please note that NO chipboard or OSB is used in the construction of ANY TGB building. These TGB Security Apex Sheds are supplied pre-treated with an Eco-Friendly light brown preservative basecoat. Strong, smoothed, rounded and planed framing has been used internally, which is doubled at the corners for extra strength. Mineral roofing felt is supplied to keep the roof watertight.

TGB Security Apex Sheds are very strong, and all have diagonal internal framing on the walls to help the building withstand the effects of storm-force winds. Unfortunately mother nature can be very cruel at times, therefore we aren’t able to guarantee any shed against extreme weather conditions, however these buildings will definitely last much longer than standard models.



TGB Security Apex Sheds are supplied pre-treated with a quality brown, non-toxic preservative base coat. This ensures that your garden building is ready to accept any preservative colour of your choice.

Alternatively we can supply them made from long-lasting Tanalised pressure-treated timber with a 15-year anti-rot warranty, or you can have your building factory-painted in a choice of 12x popular colours (maximum 2x colours per building). These look great, and don’t require any additional painting immediately… please contact us for details.

Brown PreservativeTanalised Pressure-treated PreservativePaint Colour Options


Doors, Locking System & Windows

A fully-framed and braced, heavy-duty single door (762mm wide) is supplied complete with heavy-duty, security-bolted galvanised hinges, and a padlock protector as standard. TGB Security Apex Sheds feature a narrow glass window (1220mm x 150mm) for light and security.

The door can be positioned anywhere around the building, however this must be decided at the time of order. Please choose from one of the following positions:

apex door position 4


Professional Assembly Included

We will install your TGB garden building at NO ADDITIONAL CHARGE although some geographical limitations apply. Our PROFESSIONAL ASSEMBLY SERVICE covers approx. 90% of the UK mainland population, and requires non-restrictive access and a suitable base/site.

Look out for the FREE INSTALLATION logo:



DIY Assembly Video

Assembling your Security Apex Shed yourself can be very satisfying and it has several advantages: you probably won’t have to wait as long for delivery, you can assemble it on a day suitable to you, you can pre-treat the panels beforehand allowing the best possible protection for your building.

TGB Sheds, Playhouses and Summerhouses come with all the fixings and fastenings you need, but to make things even easier, here is an installation video that you can follow showing the assembly of a typical TGB building.





Optional Extras

This Security Apex Shed is supplied as a full kit, complete with all necessary fixings, fastenings, glazing and roofing materials. Optional extras include professional assembly, framing and wall thickness upgrades, double doors, thicker roofing felt, heavy flooring, log-lap cladding, toughened glass etc. The building can also be made to a bespoke size or configuration… please call for details.



Please contact us prior to purchase if you have any queries regarding the dimensions, or if you require exact sizes. Roof overhangs will extend beyond the Body Size shown below (all dimensions are finished sizes).

Model Frame Body Size (mm) Height (mm)  Single Door Fixed Window
TGB Security Apex Shed (mm) Length Depth Eaves Ridge Height** Width Width Height
4×4 TGBSECA0404 44×32 1219 1219 1864 2190 1805 762 1220 150
6×4 TGBSECA0604 44×32 1829 1219 1864 2190 1805 762 1220 150
6×5 TGBSECA0605 44×32 1829 1524 1864 2260 1880 762 1220 150
7×5 TGBSECA0705 44×32 2438 1524 1864 2260 1880 762 1220 150
6×6 TGBSECA0606 44×32 1829 1829 1864 2350 1880 762 1220 150
8×6 TGBSECA0806 44×32 2438 1829 1864 2350 1880 762 1220 150
10×6 TGBSECA1006 44×32 3048 1829 1864 2350 1880 762 1220 150
12×6 TGBSECA1206 44×32 3658 1829 1864 2350 1880 762 1220 150
8×8 TGBSECA0808 44×32 2438 2438 1864 2475 1880 762 1220 150
10×8 TGBSECA1008 44×32 3048 2438 1864 2475 1880 762 1220 150
12×8 TGBSECA1208 44×32 3658 2438 1864 2475 1880 762 1220 150

**Due to framing constraints, the door height may reduce when choosing position B,C or D. Please contact us prior to purchase if you have any queries regarding the dimensions. Sizes shown above are finished sizes (not nominal), however you should note that the roof will extend beyond the Body Size shown above.

Information shown above has been supplied by the manufacturer, and is as accurate as possible (errors and omissions excepted), however it is intended only as a guide. This high quality building has an expected lifespan well in excess of 15-years.

We recommend that you install the building on a solid, free-draining base, with at least 60cm free space all around for maintenance and to avoid splashback. You should treat all sections with a high quality, spirit-based preservative prior to assembly, and subsequently every year in accordance with the manufacturers instructions.

Please ensure that regular general maintenance is carried out on all moving parts, and that the roofing felt is regularly inspected, and replaced if required.