Freefoamand#039;s plain soffit board are 5-metres in length and have a thickness of 10mm with straight edges._x000D_This soffit comes in a smooth finish in storm grey, which is the darkest shade of grey we offer in our soffit boards range._x000D_Soffit boards are used to close the gap at the eaves between the rear of the fascia board and the wall. _x000D_For a visual explanation, please take a look at our short video which explains which parts go where in the roofline construction. _x000D_Soffit boards are non-load bearing.