The Sentinel garden storage unit is immensely popular with gardeners and mobile home owners.

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Price (inc. VAT & delivery): £

Spread the cost! Up to 2 years interest free credit.

From £ per month over 24 months*


Important: Delivery time on this product is 2-4 Weeks

Trimetals metal sheds and storage benefits
* Available finance options will be displayed at checkout. Further information.


  • Unique and Patented Design
  • Spring-Assisted Opening Action
  • Maintenance-Free
  • 25 Year Panel Guarantee
  • PVC-Coated Galvanised Steel Construction
  • Fire-Resistant
  • Simple, Rapid Construction
  • Clear Step by Step Instructions
  • Range of Accessories
  • Complete "WALK IN" Access
  • Two Padlock Points as Standard (4 MAX)


The Sentinel is the smallest in the range and therefore ideal for compact or smaller gardens.

This model is available with olive green roof and door with moorland green side panels.

Accessories include an exterior grade plywood floor, shelving, padlocks and hasp and padlocks sets.

The Sentinel is supplied in a convenient flat pack and is extremely simple to construct as all major components are factory assembled for you, it comes complete with all necessary fixings and easy to follow illustrated assembly instructions.

The Sentinel storage box is perfect for siting on both garden lawns and patios.


Internal Dimensions in Metric (Metres)

Height (front) 0.72
Height (back) 0.97
Width 0.94
Depth 0.62

External Dimensions in Metric (Metres)

Height 1.00
Width 1.09
Depth 0.66
Weight 29kg



The 1/2" (12mm) exterior grade plywood floor is used if you require the contents of your unit to be raised above ground level. The floor is simply placed on the base frame which is 3" (7.5cm) above the ground.


These top quality solid brass padlocks feature a hardened steel shackle and come complete with two keys and a five year guarantee. Two padlocks are recommended.

Hasp & Padlock

For even greater security this high quality lock set also secures the units front door to the base. Both hasp and padlock feature a stainless steel brass construction for long life. One or two sets can be fitted as required.

Customer Reviews

5 / 5

Good looking storage

Review by Sandra Nix

Storage box is excellent and quite spacious. Only problem we have is the effect of the sea air on the locks we bought to use on the equipment. Might be a good idea if the manufacturers sourced a reliable locking system as I'm sure a lot of these storage boxes are used on vans situated close to the sea. They can simply sieze up over the winter period.

4 / 5

Good customer service

Review by Mrs H R Day

A good product but difficult to assemble especially for people with restricted mobility in their hands. The nuts and bolts have to be located and fitted in a very narrow space. It took two of us 3 days to assemble.

5 / 5

A top quality storage container for caravan, garden etc

Review by Peter Russell

A well made secure and attractive storage container. I had one some years ago for my static caravan. Everything was bone dry. The box endured weathering in a salty environment and I have no doubt this box will perform equally as well. I did have some problems with the springs inside falling off when opening and closing but sorted now. Top quality product

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