Indonesia Plywood – Plywood, which is made by gluing thin veneer layers together, often delaminates when one of these layers separates. While several factors can cause delamination, the most common factor is splitting, which is caused by an improper manufacturing process. This time, Mega Plywood Indonesia will provide common signs of delamination and how to prevent it.

Signs of Delamination

If you can inspect the plywood before buying it, it minimizes the risk as we can detect these common signs of delamination:

Bubbles or bumps:

The first thing you need to know is that the presence of bubbles or bumps on the surface of the wood is a sign of delamination.

Widened edges:

Plywood often delaminates due to excessive moisture. This results in swelling of the edges or corners of the plywood. Features like this indicate that the plywood is receiving too much moisture and is starting to delaminate.


If it receives too much moisture during manufacturing, the moisture will turn into water vapor and create hollow cavities that are difficult to observe other than by sight until you cut the plywood. To check if there are holes, if you are still unsure, you can hold the wood and listen for hollow sounds.

Causes of Delamination and How to Prevent It

Even high-quality plywood can delaminate over time if the plywood is not properly maintained or exposed to high temperature/humidity. Some of the most common heat or humidity-related delamination issues occur due to:

Improper placement of nails or screws:

The first cause of delamination is when placing nails or screws too close to the edge. This can put too much stress on the plywood and cause the outer layer to bend up or down. Plywood should have wide voids that allow moisture to penetrate between the layers of plywood, causing delamination.


Place nails and screws at least ¾ inch from the edges and corners of the plywood.


Leaks can penetrate the seams in plywood, causing the plywood used to build the frame of the house to delaminate. In most cases, the homeowner will take a long time to notice the delamination until they find bumps in the plywood.


Whenever there is a leak in your home, always keep an eye on your plywood for any unusual lumps or bumps that appear.

Unventilated areas:

An unventilated part of your home, such as the attic, usually becomes hot and humid during the summer months. Without ventilation to release the moisture, the air becomes trapped. After prolonged exposure to humid air, the plywood on your walls, floors, or even the underside of your roof may start to peel off.


Add ventilation to areas that have high heat or excessive humidity.

Indonesia Plywood – If you are worried about making a plywood purchase due to hard-to-observe delamination, be sure to buy from a reputable source, such as Mega Plywood Indonesia. To ensure we provide quality Indonesian plywood products to customers, we produce a wide variety of plywood types in our in-house factory. Contact us starting today to get materials of good quality and the best price.