The word 'Plyboard', I believe, is a combination of these two words used together. These companies mark their products (plywood or blockboards) by printing their company name and the word 'plyboard'. The confusion is because of this naming convention followed.
MDF is generally cheaper than plywood. The surface of MDF is very smooth which makes it great surface for painting. MDF is very consistent throughout, so cut edges appear smooth and won’t have voids or splinters.
Are there any cheaper alternatives to plywood, or a different type of plywood I'm not aware of, that would still give nice smooth sides and not cost a ton of money? Thanks in advance for any help you guys can offer.
As OSB is cheaper than plywood and has the strength and durability of plywood it is becoming more widely used than plywood. OSB was introduced in the 1970s and steadily gained market share from plywood, surpassing plywood in production in 2000.
MDF is usually cheaper than plywood, but a lot depends upon the grade of plywood and types of wood used. Higher grades of plywood are more expensive because they are more aesthetically pleasing, often displaying natural hardwood or softwood grains; lower grades are used in construction work where they will not be seen (e.g., for subflooring). Both wood products are also priced according to thickness.