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Treated lumber has been available since the 1930’s. It has proven itself to be the material of choice for outdoor building and is an excellent and affordable structural material. Treated is used for the understructure of virtually all decks (treated, cedar or alternative topped). John’s Lumber stocks a variety of dimensions from 1x6, 1x8, 2x4, 2x6, 2x8, 2x10, 2x12, 4x4, 4x6 and 6x6. Most popular lengths are stocked.

Click here for a chart of stocked treated sizes in the lumber section of our site. 

It is still a popular choice for a deck top among its other uses such as:

• Structural lumber
• Sill plates
• Bridges
• Outdoor furniture and playground equipment
• Raised bed vegetable gardens
• Fascia
• Benches
• Porches and patios
• Arbors and trellises
• Docks and railings
• Landscaping borders and structures
• Steps
• Picnic tables
• Guardrails
• Fencing
• Sign posts
• Shelters
• Retaining walls

  

pictures courtesy of Arch Chemical/Wolmanized Wood

Treated lumber has recently undergone a change (in 2002). The original material called CCA has been replaced with a new formulation called Copper Azol (or CA-C for short). The EPA mandated that change a few years ago. CA-C protects just like CCA, except CA-C requires the use of a more corrosion resistant fastening and hanging system. What does that mean to you? Really nothing except the deck nails, deck screws and joist hangers we sell with decks are all designed for the new Copper Azol treatment.


> More Info

> Everything you need to know about treated lumber

 

Contact a John's Lumber Expert! Call 800-440-9860
info@johnslumber.com

 

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Clinton Township, MI
34151 S. Gratiot
586-791-1200
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Shelby Township, MI
52575 Van Dyke
586-739-6700
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Saturday 8 a.m. - 12 p.m.

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Closed on Sundays so our employees may go to church and spend time with their families.

 

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