Keter Store It Out GRANDE Garden Lockable Storage Box - 191 x 133cm - XXXL SIZE. The Grande Store Horizontal Storage Shed brings the look, feel and ruggedness of a brushed wood finish onto your patio, but without the maintenance worries of timber structures. Made of durable and hardwearing resin, and with rib-reinforced double Duotech wall panels and steel reinforcement for greater strength and rigidity, it is virtually weather-proof, so that you can focus on the more important things in life. The Duotech walls will not rust, fade, dent or peel and you can customise the shed on the ...