Welcome to Weyerhaeuser's new website!

You appear to be using an older browser. This website is best viewed using the latest versions of Internet Explorer, Chrome, Safari, and Firefox. If you proceed without upgrading or switching browsers, you may not experience optimal navigation or page functionality. Thank you for your interest in Weyerhaeuser and we hope you enjoy your visit.

Update my browser now

×

Specifications and Mill Capabilities

We manufacture plywood products to various grades, dimensions and performance standards appropriate for a wide range of customer end-uses. We use mainly inland Douglas fir and Western larch due to their ability to produce fine grain and smooth faces. Please select one of the grades listed below to learn more, or select "mill capabilities" to learn more about our mill in Kalispell, Montana.

Specs Slow growing inland Douglas fir and Western larch yield fine-grained, smooth faces. All Group 1, Structural 1 Species.
Faces “Marine” grade faces shall be limited to a total of nine repairs in a 4′x 8′ panel.
Backs, Centers and Cores All backs, centers and inner plies shall be “B” grade or better and shall be full length and full width. Neither edge of a panel shall have any cross band gap nor edge splits in excess of 1/8″ wide or four occurrences. No inner ply laps are allowed.
Construction and Thickness

Thickness Ply Count
1/4″ 3 Ply
3/8″ 4 Ply
1/2″ 5 Ply
5/8″ 7 Ply
3/4″ 7 Ply
Panel thickness to 1″
Solid long length to 98″
Scarfed lengths to 16′

Specs Slow growing inland Douglas fir and Western larch yield fine-grained, smooth faces. All Group 1, Structural 1 Species.
Faces “A” grade veneer.

Quality wood plugs or putty repairs, minimal use of polyurethane patch.

Fully sanded face.
Backs, Centers and Cores

Weyerhaeuser’s high integrity Ultra-Core™ construction features composed cross-bands for tight core gap tolerances more stringent than APA specifications.
One piece “C” grade or better center and back.

Construction and Thickness

Thickness Ply Count
1/4″ 3 Ply
3/8″ 4 Ply
1/2″ 5 Ply
5/8″ 5 or 7 Ply
3/4″ 7 Ply
Standard size 4′ x 8′
Panel thickness to 1 1/2″
Solid long length to 102″
Scarfed panels to 16′

Specs Slow growing inland Douglas fir and Western larch yield fine-grained, smooth faces. All Group 1, Structural 1 Species.
Faces

Premium “B” grade veneer.
Quality wood plugs or putty repairs, minimal use of polyurethane patch.
Unlimited plugs and repairs.
Fully sanded face with 60 grit paper.

Backs, Centers and Cores

Weyerhaeuser’s high integrity Ultra-Core™ construction features composed cross-bands for tight core gap tolerances more stringent than APA specifications.
One piece “C” grade or better center and back.

Construction and Thickness

Thickness Ply Count
1/4″ 3 Ply
3/8″ 4 Ply
1/2″ 5 Ply
5/8″ 5 or 7 Ply
3/4″ 7 Ply
Standard size 4′ x 8′
Panel thickness to 1 1/2″
Solid long length to 102″
Scarfed panels to 16′

Specs

Inland Western Douglas fir is known for its slow growth, fine texture and tight grain.
All Group 1, Structural 1 Species.
Finishing characteristics well-suited for paint, heavy body or semi-transparent stain
High ply-count construction ensures superior strength and stability.

Faces

APA “A” grade face.
Quality wood plugs or putty repairs, minimal use of polyurethane patch.

Backs, Centers and Cores

Weyerhaeuser’s high integrity Ultra-Core™ construction features composed cross-bands for tight core gap tolerances more stringent than APA specifications.
One piece “C” grade center and back.

Construction and Thickness

Thickness Ply Count
3/8″ 4 Ply No Groove
1/2″ 5 Ply No Groove, 4″ OC, 8″ OC
5/8″ 5 Ply No Groove, 4″ OC, 8″ OC RBB

Specs

A quality Medium Density Overlay (MDO) plywood product
All Group 1, Structural 1 Species
Two-step process

Faces

“B” grade veneer under paper
Wood plugs or putty repairs, minimal use of polyurethane patch
Pre-primed paper available
One or two side panels available

Backs, Centers and Cores

Weyerhaeuser’s high integrity Ultra-Core™ construction features composed cross-bands for tight core gap tolerances more stringent than APA specifications.
One piece “C” grade or better center and back

Construction and Thickness

Thickness Ply Count
3/8″ 4 Ply
1/2″ 7 Ply
5/8″ 5 or 7 Ply
3/4″ 7 Ply
Standard size 4′ x 8′
Scarfed panels to 10′

Our Montana-based mill in Kalispell produces Evergreen plywood in a variety of grades and dimensions to meet unique customer specifications.

Species Douglas fir and Western larch
Specs Group 1 Structural 1
Grades AB Marine
ABX, AC, BC, BBO&ES MarineTech™, MarineDeck™
2-Step Process MDO Sign Grade
MDO and HDO Concrete Form
HDF Faced Douglas fir
Douglas fir Siding
CCP Industrial Specialties
Thickness 1/4” through 1”
Widths 48″
Lengths 102” solid long length, scarfed length to 16”