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 Pent (STORM) Shed *ASSEMBLED*

TGB Sheds Security (Storm-Braced) Pent Shed is a high quality timber building, and is DELIVERED AND FULLY INSTALLED in your garden! Available in several bespoke sizes.

This building comes dip-treated as standard, however a pressure-treated TANALISED® option is available FREE for a limited period (normally +25% extra)!
If applicable to this model, you can choose one of these FREE BONUS DOOR UPGRADES from the list above!


TGB Security Pent (Storm-Braced) Shed

The TGB Security Pent Shed is a high quality, wooden, apex-roofed shed made with security in mind. The TGB Security Pent is a traditionally built British shed, featuring a high level security window, heavy-duty galvanized bolted hinges, padlock protector, and lots of framing for strength. The TGB Sheds Security Pent 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*
  • FREE preservative treatment
  • Brown finish
  • Narrow security window for light
  • Heavy Duty galvanized 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 garden building 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 buildings 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.

Our storm-braced 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 garden buildings 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 galvanized hinges, and a padlock protector as standard. This building features 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:


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.


DIY Assembly Video

Assembling your building 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, and we may even be able to offer you an additional discount so you’ll save even more money! 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 garden building 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 Pent Shed (mm) Length Depth Eaves Ridge Height** Width Width Height
4×4 TGBSECP0404 44×32 1219 1219 1937 2153 1805 762 1220 150
6×4 TGBSECP0604 44×32 1829 1219 1937 2153 1805 762 1220 150
6×5 TGBSECP0605 44×32 1829 1524 1937 2153 1880 762 1220 150
7×5 TGBSECP0705 44×32 2438 1524 1937 2153 1880 762 1220 150
6×6 TGBSECP0606 44×32 1829 1829 1937 2153 1880 762 1220 150
8×6 TGBSECP0806 44×32 2438 1829 1937 2153 1880 762 1220 150
10×6 TGBSECP1006 44×32 3048 1829 1937 2153 1880 762 1220 150
12×6 TGBSECP1206 44×32 3658 1829 1937 2153 1880 762 1220 150
8×8 TGBSECP0808 44×32 2438 2438 1937 2153 1880 762 1220 150
10×8 TGBSECP1008 44×32 3048 2438 1937 2153 1880 762 1220 150
12×8 TGBSECP1208 44×32 3658 2438 1937 2153 1880 762 1220 150

**Due to framing constraints, the door height may reduce when choosing position A or E. 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.