3mm white printed ash MDF (Medium Density Fibreboard) is strong and very economical sheet material and very suitable for laser cutting.
MDF is composed of a combination of dried wood fibers and glue. Due to the dense and even distribution of the fibers, it is easy to machine with a laser cutter, as well as with sawing, milling, drilling, etc. Due to its dense structure, MDF is relatively heavy, but on the other hand, it is also very stiff, strong, has great bending strength and no grain. This makes the material equally strong in all directions.
Because a board of MDF consists of dried wood fibers and glue, it cannot withstand moisture (water) very well and is not suitable for outdoor use.
Are you looking for a material for prototypes or a simple project? If so, it is perfect because of its strength, low cost and possible additional processing.