Hours: Mon & Fri: 7am to 5pm | Tue, Wed & Thur: 7am to 6pm | Sat: 8am to 3pm | CLOSED SUNDAY

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Quality Lumber in Stock

You'll find a better quality and large selection of lumber!

If you’ve ever shopped the big box stores for lumber, you’ll appreciate the stock you'll find at Tri-Creek. Whether you’re repairing a wood fence, building a tree house, need lumber for home construction or a commercial project, we have what you need. 

We stock:

  • Premium studs
  • #2 & better grade SPF
  • #1 grade Southern Yellow Pine
  • Long- length Douglas Fir
  • No Hem-Fir
  • Premium Treated decking up to 20' long
  • #1 grade treated 2x4s and 2x6s
  • Western Red Cedar 2x4s, 2x6s, 4x4s
  • Premium radius edge Cedar decking
  • Marine grade plywood

Plus you will find the long lengths you need for your residential or commercial project.


lumber and pressed wood for northwest indiana. Lumber for a wood fence, tree house, or home construction


 Featured Brands

central states metal building material NWI, lowell AZEK PVC decking materials including deck railings, deck balusters, hidden fasteners and screws, and AZEK column wraps and trim boards  

Metal Roofing & Siding

metal roofing and siding for NWI, St. John Indiana, Crown Point, Winfield

Whether you love the look and durability of a metal roof for your home or are building a pole barn or commercial building, Tri-Creek can supply the roofing, siding and trim pieces for your job.
Made by Central States Manufacturing, we carry light gauge, commercial and residential metal roofing and siding and stock several colors. Additional colors are available as special-order. Energy Star qualified, siding metal and roofing may qualify for tax credits.*

*not all products qualify

We Stock:

  • Panel-Loc
  • Panel-Loc Plus
  • Horizon-Loc
  • R-Loc
  • M-Loc
  • Precision-Loc
  • Central Seam Plus
  • Central-Loc
  • Central-Snap


Azek® PVC Decking and More!

azec pvc decking NWI, St. John, Indiana, Wheatfield

We are proud to stock AZEK® trim boards, AZEK column and post wraps and AZEK Premier railing systems.

AZEK Trim has precise sealed edges on all 4 sides (S4S) and is ideal for applications such as window and door trim on the exterior of your house.

AZEK Trim boards, available in trim, solid Cellular PVC sheets, Cellular PVC cornerboards, Cellular PVC beadboard as well as many other profiles, uses traditional tools and fasteners, and can be worked just like wood – even mitered, routed, and turned on a lathe.

  • Impervious to moisture and insects
  • Perfect for ground contact application
  • 25 year warranty
  • Precise sealed edges on all four sides (S4S)
  • Tight board tolerances
  • Easier to clean
  • Maintains a “like new” appearance in all types of weather
  • Does not require paint for protection
  • Can be heat formed for unique shapes and designs
  • Building code listing ESR-1074
  • Use with AZEK adhesive
azec pvc railing for NWI azec pvc deck rail for Northwest Indiana azec pvc deck railing in Lowell store




NWI Kitchen design, Bath ideas, Deck designers. Lowell Indiana Tri-Creek Lumber store sign for help wanted job career page

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Kitchen & Bathroom Cabinets plus TimberTech Azek Composite Decking. Crown Point, St. John, Cedar Lake, DeMotte, and Wheatfield, Indiana. Also Grant Park Illinois.
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