What is Plywood?
Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to90 degrees to one another. It is an engineered wood from the family of manufactured boards which includes medium-density fibreboard and particleboard.
How to choose high quality plywood for furniture?
First, environmental protection
Many consumers choose big core board, first consider weight then price. In fact, the heavier the large core board is the worse quality it has. Because the heavier core board uses more miscellaneous wood. This board can not be driven into nails and it can not be used. In addition, the quality of large core board with cheap price will certainly be very poor.
What you want on exposed surfaces is a wood that’s reasonably scratch-resistant. You can test this easily enough by attempting to draw a thin line with your fingernail across the wood; if it makes a visible dent (use a flashlight here if necessary) you know it won’t stand up to much use.
If plywood, look for at least nine layers. Check the wood for knots, even on unexposed pieces; all knots are susceptible to cracks. Some woods, like pine, are ‘knottier’ than others, and therefore less desirable. Avoid particleboard, pressed wood, or fiberboard.
Moisture should reach the standard. When the water content of the wood is higher than the equilibrium water content of the environment the wood will dry and shrink, otherwise the moisture will be absorbed and expanded. The qualified wood needs to pass through the high-temperature boiling and drying process of the factory, and finally reach the local moisture content level.