How is blockboard different from plywood?

Blockboard and plywood are both types of engineered wood, but they have some fundamental differences in terms of structure, manufacturing process, and usage.

Firstly, the primary difference between blockboard and plywood lies in their core construction. Blockboard consists of a solid wooden core made from solid strips of softwood or hardwood, known as staves, which are glued together. These staves are usually arranged edge-to-edge and sandwiched between two thin layers, called veneers, which are usually made of plywood or MDF (Medium Density Fiberboard). On the other hand, plywood is composed of multiple layers of thin wooden veneers, known as plies or planks, that are cross-bonded together using adhesive. This cross-bonding technique gives plywood its strength and stability.

Secondly, due to their different constructions, blockboard and plywood vary in terms of their strength and suitability for various applications. Blockboard is generally known for its excellent screw-holding ability and durability. It is commonly used for making furniture, doors, shelves, and partitions. Its solid wooden core provides stability, reduces warping, and offers resistance to bending and twisting forces. On the contrary, plywood is highly regarded for its strength, versatility, and resistance to cracking and splitting. It is extensively used in construction, flooring, roofing, and in applications where high strength and stability are required.

Another significant difference between blockboard and plywood is their weight and cost. Blockboards are typically lighter in weight compared to plywood, making them easier to handle during installation. They are also more cost-effective compared to plywood, primarily due to their lower production cost. However, it is important to note that the price of both blockboard and plywood may vary based on the quality of the materials used and the manufacturing process involved.

In summary, while both blockboard and plywood are widely used engineered wood products, they differ significantly in terms of their core construction, strength, usage, weight, and cost. Blockboard is known for its solid wooden core, screw-holding ability, and durability, making it ideal for furniture-making and interior applications. Plywood, on the other hand, is valued for its strength, versatility, and stability, making it suitable for construction and exterior applications.