Copper Guttering Large Box Profile External Corner 90 Degree Description Our Box style copper gutter is manufactured from 100% natural 0.6mm copper and is supplied in 2.4m lengths, making both transportation and installation uncomplicated. Fitting our Box copper guttering couldn't be easier, with pre-made corners and outlets and simple internal joints that just require sealing and riveting in place. All of our box guttering now comes with a square front lip. If you require a rolled front lip please contact us as this will require a special production run. Standard profile measures: 65h x 90w Large profile measures: 90h x 120w