Pressure treated soft wood. Designed to allow logs to dry. Pre-treated roof. FSC. Pitch height 123.4cm / 4ft 1in. External size (H)123.4, (W)121.5, (D)88.6cm / (H)4ft 1in, (W)3ft 11in, (D)2ft 10in. Internal size (H)104, (W)103.5, (D)58.4cm / (H)3ft 5in, (W)3ft 5in, (D)1ft 11in. 1 person self assembly. Manufacturer's 10 year anti-rot guarantee. Kerbside delivery only.