#1 Home Improvement Retailer

Internet #202083021

Model #139773

Store SKU #139773

4 in. x 10 in. x 20 ft. Prime #1 Douglas Fir Lumber

  • Made from Douglas fir that offers a smooth texture
  • Stainable surface allows painting as per your choice
  • Ideal for both commercial and residential projects
  • View More Details
0 in stock
Text to Me
How to Get It

Frequently Bought Together


Product Overview

The 4 in. x 10 in. x 20 ft. Douglas Fir Lumber is an untreated natural wood with a smooth texture. This dimensional lumber is prime quality and can be painted or stained. Ideal lumber for residential and commercial projects.
  • Made of douglas fir for a smooth texture
  • Dimensional lumber has a 1 better lumber grade
  • Can be stained or painted
  • 3-5/8 in. x 9-1/2 in. x 20 ft.
  • Ideal material choice for building professionals
  • Note: product may vary by store
  • Click to learn how to select the right lumber for your project
  • California residents



Actual Product Length (ft.)20Actual Product Thickness (in.)3.56
Actual Product Width (in.)9.5Approximate Weight (lb)170
Nominal Product Length (ft.)20 ftNominal Product Length (in.)240
Nominal Product Thickness (in.)4Nominal Product Width (in.)10
Nominal Width (in.)10 in


Chemical retention (lb./cu. ft. )0FeaturesPaintable,Pressure Treated,Stainable
Lumber Grade1/Btr STPressure treatment chemicalUntreated
Total Linear Feet Covered20

Warranty / Certifications

Manufacturer WarrantySee store for details

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 5
    out of 2 reviews
  • 100%recommend this product
Filter by:
Showing 1-2 of 2 reviews
Very good...
Very good
  • Verified Purchase
Strong lumber
Strong lumber
  • Verified Purchase
  • Recommended
Showing 1-2 of 2 reviews