100% galvanised steel with polyester enamel finish. Double sliding lockable doors. Anchor kit not included. Step by step assembly manual. Meets local fire authority regulations. Door opening size (H)165, (W)81cm / (H)5ft 3in, (W)2ft 8in. External size (H)190, (W)194, (D)121cm / (H)6ft 3in, (W)6ft 4in, (D)4ft. Internal size (H)187, (W)181, (D)108cm / (H)6ft 2in, (W)5ft 11in, (D)3ft 6in. Overhang dimensions (W)5, (D)5cm. Manufacturer's 10 year guarantee against perforation rust. Packed flat for home assembly. 2 person self assembly. Base not included.