Blockboard: Best Summary Table, 9 Properties, Types, Manufacturing, Uses, Benefits, Applications, and More

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Discover the world of Blockboard – an engineered wood product with softwood strips sandwiched between hardwood veneers. Learn about its technical properties, types, manufacturing processes, applications, etc.

Find out how to choose the right Blockboard for your project and work with it effectively. Explore comparisons with plywood and MDF and understand its resistance to water and fire. Get all the insights you need about Blockboard in one place.



 1. Summary table of Blockboard 


DefinitionBlockboard is an engineered plywood made of softwood strips sandwiched between hardwood veneers.
Technical propertiesModulus of elasticity long, Density, bending Strength, bending strength cross, formaldehyde emission, Modulus of elasticity cross, fire safety category, thickness tolerance, length and width tolerance
TypesInterior grade, exterior grade, softwood, hardwood
Manufacturing stepsSlicing, rotary cutting, gluing, Drying, attaching, finishing
UsesFurniture production, shelving, windows, door shutter, flush door, wall furniture, wall panels, partition
BenefitsStrength, stability, moisture resistance, cost-effective, easy to work with, lightweight
DrawbacksNot as durable as other materials, challenging to work with voids, susceptible to insect damage
ApplicationsFurniture, doors, wall panels, partition walls, flooring, other woodworks, railway carriages, interior decoration, prefabricated houses, bus bodies
How to chooseConsider thickness, core material, grade, veneer quality, design, sustainability, and budget.
How to work withCut to size, drill pilot holes, countersink screws/nails, sand, Finish
Comparison with plywoodSimilar in properties, but plywood is more expensive
Comparison with MDFSimilar in properties, MDF is more costly and less moisture-resistant.
WaterproofNo, but it is more moisture-resistant than regular wood
Fire-resistantIt is more fire-resistant than stable wood but not entirely fireproof



 2. What is a Blockboard? 

Blockboard may be defined as an engineered compound plywood board where softwood strips are attached edge to edge and bonded jointly, machining generally a sandwich structure setting Hardwood between them.

Blockboard is majorly available in various sizes and thicknesses. The standard length of the block board is 2440 x 1220 x 30 mm.


 3. Technical Properties of Blockboards 


The technical properties of block boards are as follows:

Modulus of elasticity long


Bending strength

Bending strength cross

Formaldehyde emission

Modulus of elasticity cross

Fire safety category

Thickness tolerance

Length and width tolerance



 4. Types of Blockboards 


The classification of block boards mainly relies on various factors such as quality, use, and raw wood employed for the core.

The following are the types of block boards:

Depending on Quality and Use:

Interior Grade Blockboard

Exterior Grade Blockboard


Depending on the Raw Wood Used in the core:

Softwood Blockboard

Hardwood Blockboard


Various aspects of these types are well described below:


I. Interior Grade Blockboard

These grades are produced for indoor services and are unsusceptible to moisture, Known ass MR (Moisture Resistant)—for example, Furniture, doors, and window shutters.


II. Exterior Grade Blockboard

This type of block board is produced for outdoor uses. Exterior grades are known as BWP (Boiling Water Proof) or BWR (Boiling Water Resistant).

This high resistance quality is because the adhesives employed here are also valuable for quality.


III. Softwood Blockboard

Solid blocks of wood are employed to prepare each blockboard sheet attached jointly with operating Glue.

The sheets are called strips or battens.

The surface is coated with hardwood surfaces.


IV. Hardwood Blockboard

Generally, Hardwood is dense, heavy, costly, and strong as the core is produced from rigid sheets.

The layer is also made of Hardwood.



 5. Manufacturing of Blockboard 

The following are the steps of block board processing:


a. Slicing

The timber logs are cut at first to make the raw blocks. The strips can be 25 mm.


b. Rotary Cutting

For the outer layer, logs are trimmed at rotary cutting. Thus, veneer for coating is acquired.


c. Gluing

Glue or adhesives connect the pieces, such as Urea-formaldehyde and phenol formaldehyde, a plastic resin.

The exterior grade block board needs phenol-formaldehyde. Gluing is accomplished under high pressure.


d. Drying

The blocks are dried to decrease the moisture and water content left inside them blocks. For Drying, the blocks are preserved before the sun.

The moisture content is decreased to 10-12%. After appropriate Drying, they are prepared to produce a sandwich.


e. Attaching

Blocks are connected employing softwood or Hardwood as needed for interior or exterior grade.


f. Finishing

Last finishing offering lamination, a coating is accomplished.




 6. Uses of Blockboard 

The uses of Blackboard are as follows:

For furniture production such as tables, benches, beds, etc.

For shelving, such as extended bookshelves and worktops as heavier structures.

For windows, door shutter, flush door.

For preparing wall furniture.

They do not slag in the middle or does not bend easily, so it is a selection for carpenters.

For wall panels, partition.



 7. Benefits of Blockboard 


The  benefits of blockboards are mentioned below:

The soundness of blockboards is sufficient stability. These can offer peace in humid surroundings that possess moisture resistance.

They are cheap.

Using Glue, It can carry varnish, paint, and laminate coat on the surface. Block boards are suitable for screwing and nailing.

Warping or twisting is the right option for its opposition quality.

They can have screws, nails, and laminating coat; for this, it is comfortable to work on.

Carpenters can efficiently employ their wood processing tools for block boards.

The lightweight Blockboard produced is suitable to employ. The bulk of the board comprised of core blocks is also famous for its light as made from softwood and is effortless to transport.

BWP, one type of Blackboard, is more robust, adequate, and invulnerable to water and humidity.



 8. Drawbacks of Blockboard 

The followings are drawbacks of blockboards are mentioned below:

They are light in weight, so they are not largely reliable hard materials.

They are more vulnerable and don’t have long durability.

The undesirable void between softwood strips makes it challenging to work for carpenters.

Screwing and nailing should be accomplished carefully; otherwise, it may break.

Shrinkage and swelling of the board may appear.

The breakdown of the blocking board is not secured.

If the strip’s inner is cheap, low-quality wood may be damaged by insects.



 9. Applications of Blockboard 

To construct various furniture pieces such as benches, sturdy tables, bookshelves, and sofas.

To design both regular doors and flush doors with a solid core.

In wall panels

In partition walls

In flooring

In other Furniture like tables

In the woodwork of railway carriages

In interior decoration

In prefabricated houses

Bus Bodies



 10. How do you choose the right Blockboard? 


Before choosing the Blockboard, consider some points explained below:

Thickness: When selecting a Blockboard, it is essential to consider the appropriate thickness for its intended use. A thicker Blockboard is necessary for furniture-making purposes than for making a shelf. There are so many consistency options obtainable to suit diverse applications.


Core Material: It is generally believed that the Hardwood core blockboard is considered the strongest, most durable, and most stable type of Blockboard


Grade: Choose the correct rate of Blockboard for your intended use and environment. Consider BWR-grade for moisture-prone areas.


Veneer Quality: A high-quality veneer is paramount for a blockboard with a fantastic appearance and better durability.


Design and Aesthetics: Selecting a veneer that complements your project’s design, considering its appearance and grain pattern, is highly recommended.


Sustainability: When it comes to sustainability, it’s essential to opt for blockboards accepted from forests that are responsibly collected and maintain certifications such as FSC (Forest Stewardship Council).


Budget: To discover the right Blockboard, assume the core material, veneer quality, and thickness. Set a budget and look for reasonable options that meet your needs without sacrificing quality.



 11. How do you work with a blockboard? 

Material needed to work with Blockboard:







Wood glue

Finish of your choice (paint, stain, etc.)


Steps to work with a Blockboard:

Cut the Blockboard to size

Drill pilot jams before screwing or nailing

Utilize a countersink bit to countersink screws/nails

Sand the Blockboard before finishing

Lay the Finish of your choice

Slice across the grain when cutting BBlockboardOperate suitable screws/nails for structural use

Determine the best Finish for your project



 12. How does Blockboard compare to plywood? 


CoreSoftwood or hardwood stripsThin layers of wood
WeightLightweightMedium weight
CostRelatively inexpensiveIt is more expensive than Blockboard
Ease of workabilityEasy to work withEasy to work with



 13. How does Blockboard compare to MDF? 

CompositionA blockboard consists of softwood or hardwood strips sandwiched between two layers of veneer.Wood fibers bonded together with resin and heat.
WeightLightweightMedium weight
CostRelatively inexpensiveIt is more expensive than BBlockboard
Ease of workabilityEasy to work withEasy to work with
Moisture resistanceModerateLow



 14. Is the Blockboard waterproof? 

The manageable weight and portability of the Blockboard make it advantageous for transportation.

The core blocks, mainly consisting of softwood, count to its ease of movement. The BWP blockboard is sturdy and trustworthy and can endure water and humidity.



 15. Is Blockboard fire-resistant? 

It’s worth noting that Blockboard is more fire-resistant than regular wood but not entirely fireproof.

This is because the veneer on its surface acts as a barrier that protects the core from burning.

However, it’s crucial to remember that a blockboard can still catch fire if exposed to high temperatures or flames.

Additionally, the level of fire resistance will vary depending on the type of wood used in both the core and veneer layers.



Read Also: Types of Concrete Admixtures


Verified By:  Er. Bipana Kshetri Puri 


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