Thank you for your enquiry. The Fencelife Plus coverage rate is 6 square meter per litre per coat and is a 3 coat application on smooth timber and 2 on rough wood. If based on 6"x"6" this equates to 3.24 square meters and with 3 coats would need 1.62 litres you can then times this with ever how many panels you have.
Answered by: Ronseal Product Support
Date published: 2021-03-14