Trimetals Sentinel (Small) Garden Storage Box

Compact, Secure & Maintenance‑Free Outdoor Storage
The Trimetals Sentinel (Small) is the most compact model in the Trimetals range, a strong, weatherproof metal storage box designed for smaller gardens, patios, balconies, and tight outdoor spaces. 

Made in the UK from PVC‑coated galvanised steel, it offers exceptional durability with zero maintenance, making it a long‑lasting alternative to wooden storage units.
The wide, up‑and‑over door provides full‑width access, allowing you to load and remove tools and equipment easily without awkward lifting. 

With its secure padlock point, RHS endorsement, and a 25‑year panel guarantee, the Sentinel is built to withstand the British climate while keeping your belongings safe, dry, and neatly organised.

Key Features

Strong PVC‑coated galvanised steel construction
Maintenance‑free — no painting, rotting, or warping
Full‑width up‑and‑over door for easy access
Secure padlock system (optional hasp & padlock upgrades available)
Delivered flat‑packed with factory‑assembled panels for quick installation
Suitable for lawns, patios, courtyards, and small gardens
Endorsed by the Royal Horticultural Society (RHS)
25‑year panel guarantee for long‑term peace of mind
Fire‑resistant materials for added safety

Dimensions
External Dimensions

Height: 1.00 m (3 ft 4 in)
Width: 1.09 m (3 ft 7 in)
Depth: 0.66 m (2 ft 2 in)

Internal Dimensions

Front Height: 0.72 m (2 ft 4 in)
Back Height: 0.97 m (3 ft 2 in)
Width: 0.94 m (3 ft 1 in)
Depth: 0.62 m (2 ft 1 in)

Why Choose the Sentinel (Small)?

Perfect for compact gardens or as an additional storage unit
Stronger and longer‑lasting than wooden alternatives
Easy to assemble with factory‑built panels
Keeps tools and equipment dry, secure, and organised
Built to last decades, not seasons