The abbreviation is m. The word lineal or linear is redundant.
Chat with our AI personalities
Lineal metres = Square metres/Width of the boards.
Lineal metres = Square metres/Width of the boards.
A square metre is a unit of area. A linear metre is a unit of distance. The two units are therefore incompatible.
The answer will depend on the width of the decking boards.
Decameter or decimeter, is a term used to refer to 10 meters in length. The abbreviation for it is dm.