How Is Plywood Made? A Veneer Mill Tour

Take a video tour of a veneer mill to see the step-by-step process involved in making the thin sheets of wood required to make plywood.

ABERDEEN, WA / ACCESSWIRE / February 29, 2024 / Rayonier
Originally published on Rayonier.com

Plywood is crucial in construction, but have you ever wondered how plywood is made? In this article, we explore how trees are transformed during the plywood-making process at a veneer mill in Aberdeen, Washington and the significance of the forest lifecycle in maintaining a sustainable supply of this essential resource, including:

• What is plywood and what is it used for?
• What type of wood is used to make plywood?
• What are the steps to make plywood?
• What happens to the wood scraps in the plywood-making process?
• What happens to the land after trees are harvested for plywood?
• What is the importance of sustainable forestry in plywood production?

What is plywood and what is it used for?

Plywood is an incredibly important forest product used in the construction of all kinds of homes and buildings.

This versatile material is made by bonding together many layers of thin sheets of wood veneer. Consumers choose plywood over other wood building materials such as solid lumber for several reasons:

1. Value: A sheet of plywood is more affordable than the same amount of solid wood.
2. Strength: Plywood is a very durable wood product thanks to the manufacturing process, which layers wood veneer at varying angles.
3. Uniformity: Because of the way they're made, plywood panels can be depended on to come in the width, length and thickness expected without major defects.

What type of wood is used to make plywood?

There is softwood plywood, hardwood plywood and plywood made up of a combination of both. Firs, pines, oaks, maples, birches and other woods are all commonly used to make plywood.

At the Pacific Veneer Mill in Aberdeen, Washington, hemlock, Douglas-fir, spruce and sometimes pine are all types of wood used to make veneer sheets.

Troy Kalinoski, who purchases timber for the mill, says he prefers to buy hemlock wood, which is more affordable and helps the mill keep the overall cost of its product low. In this part of the country, hemlock also has less knots than Douglas fir, making a better quality wood.

"We're probably anywhere from 80 to 85 percent hemlock," he says. "Because of that, our product is coveted by certain customers in our marketplace."

The veneer mill purchases wood from landowners like Rayonier; manufactures it into sheets; and then sells those sheets to a plywood mill. The plywood mill then fastens each thin layer of veneer together into the final product, using a powerful laminate material.