Specifications & Mill Capabilities

At Plum Creek, we manufacture plywood products to various grades, dimensions and performance standards appropriate for a wide range of customer end-uses.

  • AB Marine Grade
  • AC Sanded Plywood
  • BC Sanded Plywood
  • Douglas Fir Siding
  • MDO Sign Grade
  • All Plywood Specifications
Stack of wood ready to be made into plywood

Standard Specifications

AB Marine Grade

 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 & 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 & 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 1/2"

Solid long length to 102"
Scarfed lengths to 16'

AC Sanded Plywood

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 & Cores Plum Creek'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 & 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'

BC Sanded Plywood

Specs Slow growing inland Douglas fir and Western larch yield fine-grained 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 & Cores Plum Creek'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 & 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'

Douglas Fir Siding

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, Center & Cores Plum Creek'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 & 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

MDO Sign Grade

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 & Cores Plum Creek'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 & 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'

Mill Capabilities

Two Montana-based mills, Columbia Falls and Kalispell, produce Plum Creek plywood in a variety of grades and dimensions to unique customer specifications.
 

Species Douglas fir & 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”