All the Technical Information for the Local Building Inspector (AHJ). Download at the DRJ website.

The EcoSmart Stud TER 2304-120 is provided by DrJ Engineering. DrJ Engineering works alongside creative companies to bring new and existing products, processes, and services to the market professionally, reliably, and cost-effectively through generally accepted wall framing practices. Download the EcoSmart™ Stud TER in PDF format or a sealed TER with the link below for more details on exterior wall insulation and how to frame a wall using EcoSmart™ Studs.

DRJ Website TER link

EcoSmart™ Stud Product Types

2×6 Original EcoSmart™ Stud

Feature Description
Framing Positions King, perimeter, field, or cripple
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Can be mixed with other EcoSmart™ stud styles
Installation Orientation Nubs face exterior; solid side faces interior
Crown Pre-crowned during manufacturing
Available Sizes 92 5/8″ (8 ft walls), 104 5/8″ (9 ft walls)
Additional Details
  • It has the highest R-value potential of the 2×6 EcoSmart™ Stud due to having 2 thermal breaks across the width of the stud.
  • Has an alignment nub to aid in installation for on site framing that can be removed after framing.

2×6 EcoSmart™ V2 Stud

Feature Description
Framing Positions King, perimeter, field, or cripple
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Can be mixed with other EcoSmart™ stud styles
Installation Orientation Installed like typical stud
Crown Not marked for crown
Nailing Surfaces Solid nailing surfaces on both sides; supports 6/12, 4/12, 3/12 patterns
Available Sizes 92 5/8″ (8 ft walls), 104 5/8″ (9 ft walls)
Additional Features
  • Compatible with Exterior Continuous Insulation wall designs requiring specialized nail patterns/fasteners

2×6 EcoSmart™ Jack/Trimmer Stud

Feature Description
Framing Positions Trimmer/Jack position (supports header)
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Use with 2×6 Standard or 2×6 Aux EcoSmart™ studs as King studs
Installation Orientation Nub face exterior with sheathing; solid side faces interior
Crown Pre-crowned during manufacturing
Nailing Surfaces Full-depth solid nailing surface; compatible with nail-fin windows
Available Sizes 84″ (8 ft walls), 96″ (9 ft walls)
Additional Features
  • Purpose-built for jack/trimmer use to reduce wood waste
  • Alignment nub aids on-site framing

2×8 Original EcoSmart™ Stud

Feature Description
Framing Positions King, perimeter, field, or cripple
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Compatible with 2×8 EcoSmart™ stud types
Installation Orientation Nubs face exterior with sheathing; solid side faces interior
Crown Pre-crowned during manufacturing
Nailing Surfaces Nubs face exterior with sheathing; solid side faces interior
Available Sizes 92 5/8″ (8 ft walls), 104 5/8″ (9 ft walls)
Additional Features
  • Highest overall R-value in EcoSmart™ line (3 thermal breaks across the stud width)
  • Alignment nub aids on-site framing; removable after framing

2×8 EcoSmart™ V2 Stud

Feature Description
Framing Positions King, perimeter, field, or cripple
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Compatible with 2×8 V2 and standard styles
Installation Orientation Installed like typical stud
Crown Not marked for crown
Nailing Surfaces Solid on both sides; supports 6/12, 4/12, 3/12, 2/12 patterns
Available Sizes 92 5/8″ (8 ft walls), 104 5/8″ (9 ft walls)
Additional Features
  • Works with Exterior Continuous Insulation wall designs
  • Higher R-value potential than 2×6 studs (2 thermal breaks across the stud width)

2×8 EcoSmart™ Jack/Trimmer Stud

Feature Description
Framing Positions Trimmer/Jack position (supports header)
Stud Spacing Compatibility 12″, 16″, or 24″ on-center exterior wall designs
Mix With Other Studs Use with 2×8 Standard or 2×8 V2 EcoSmart™ studs as King studs
Installation Orientation Nub face exterior with sheathing; solid side faces interior
Crown Pre-crowned during manufacturing
Nailing Surfaces Full-depth solid nailing surface; compatible with nail-fin windows
Available Sizes 84″ (8 ft walls), 96″ (9 ft walls)
Additional Features
  • Purpose-built for jack/trimmer use to reduce wood waste
  • Higher R-value potential than 2×6 studs (2 thermal breaks across the stud width)
  • Alignment nub aids on-site framing

How EcoSmart™ Stud Product Are Used

2×6 or 2×8 EcoSmart™ Stud Mixed Stud Framing

The Original EcoSmart™ Stud and EcoSmart™ V2 Stud

Best for builders who want to balance structural strength and energy efficiency using a hybrid layout for wood framed construction.

Why Builders Choose It:

    • Combines the advantages of the Original EcoSmart™ Stud and the EcoSmart™ V2 Stud
    • Enhances wall performance in seismic and high-wind zones
    • All standard nailing patterns 6/12, 4/12 ,3/12, 2/12 can be used
    • Reduces material use while maintaining load-bearing integrity

Specs:

  • The 2×6 or 2×8 EcoSmart™ V2 stud is used in the perimeter slot and the original EcoSmart™ Stud is used in the field position.
  • This layout can be used in 12″, 16″ and 24″ on center exterior wall designs.
  • This can be used in seismic designed walls. One V2 stud on both sides of the perimeter location. The original EcoSmart™ Stud goes in the 16″ or 24″ field position
  • V2 studs in the perimeter stud location can accept 3/12 and 2/12 nailing patterns for seismic and high wind areas.
  • Two inches of 2 lb closed cell spray foam not required for structural reinforcement for seismic and high wind areas.

2×6 or 2×8 Original EcoSmart™ Stud Framing

Best for  wood framed construction where maximum insulation performance is required.

Why Builders Choose It:

  • Delivers uniform thermal and structural performance across all wall positions
  • Compatible with standard framing layouts (12″, 16″, or 24″ on-center)

Specs:

  • The original 2×6 or 2×8 EcoSmart™ Stud is used in the perimeter slot and field position.
  • This layout can be used in 12″, 16″ and 24″ on center exterior wall designs.
  • This can be used in seismic designed walls. One original EcoSmart™ Stud on both sides of the perimeter location. The original EcoSmart™  stud in the 16″ or 24″ field position
  • Studs in the perimeter stud location can accept 6/12 and 4/12 hybrid nail patterns. The solid plates can have a 3/12 & 2/12 nail pattern resulting in a hybrid nailing pattern for the entire panel.
  • Two inches of 2 lb closed cell spray foam may be required for seismic and high wind areas depending on PLF requirements for the buildings’ exterior walls. Consult with your design engineer or reach out to us.

Frequently Asked Questions



The following frequently asked questions about EcoSmart™ Stud cover topics such as certification, availability, and compatibility with traditional building methods. Whether you are a contractor looking to incorporate EcoSmart™ Studs into your projects or a homeowner considering them for your next renovation, these FAQs will provide valuable insights into the benefits and potential applications of this exciting new product.


    

  1. 

    Can I replace my 2×4 and 2×6 studs with EcoSmart™ Studs?
    

      Yes, EcoSmart Studs are designed to be a replacement for solid 2x studs in exterior walls.
    

    

    2. 

  2. 

    How far apart should EcoSmart™ Studs be?
    

      Wall studs are typically spaced 16 inches or 24 inches on center in standard wall framing for wood framed construction. When using EcoSmart™ Studs, the same spacing rules apply. You can frame EcoSmart™ Studs 16 inches or 24 inches on center, just like traditional studs. This makes it easy to incorporate them into any construction project without changing standard building practices.
    

    

    3. 

  3. 

    Is the EcoSmart™ Stud certified?
    

      Yes, the EcoSmart Stud has been certified for use in building projects.
    

    

    4. 

  4. 

    How thick is a stud?
    

      A standard wall stud is typically 1.5 inches thick. This applies to both 2×4 and 2×6 studs, as their actual dimensions are 1.5 inches by 3.5 inches for 2x4s and 1.5 inches by 5.5 inches for 2x6s. EcoSmart™ Studs follow the same thickness, ensuring compatibility with traditional wall framing and wood framed construction methods.
    

    

    5. 

  5. 

    Will using EcoSmart™ Studs affect the way nails are used in the construction?
    

      No, EcoSmart Studs can be nailed in the same way as traditional studs.
    

    

    6. 

  6. 

    In what parts of a building should EcoSmart™ Studs be used? Where are they most effective?
    

      EcoSmart Studs are best used in the exterior walls of a building. They are designed to work with spray foam insulation, which can fill the slots and gaps in the studs to increase their R-value and reinforce the wall.
    

    

    7. 

  7. 

    What insulation material is the most energy efficient?
    

      The most energy-efficient insulation material is 2 lb closed cell spray foam insulation. Combined with the EcoSmart™ Studs this combination enhances insulation by filling in the thermal breaks in the EcoSmart™ Studs, boosting the R-value, and creating a more energy-efficient and durable wall structure.
    

    

    8. 

  8. 

    What is R-value?
    

      R-value measures an insulation material’s resistance to heat flow. A higher R-value means better insulation and energy efficiency. EcoSmart™ Studs enhance R-value of an exterior wood wall stud by allowing spray foam insulation to fill gaps and slots within the EcoSmart™ Stud, reducing thermal bridging. This design increases the overall R-value of exterior walls, leading to better energy efficiency and lower utility bills.
    

    

    9. 

  9. 

    Does the use of EcoSmart™ Studs meet building code requirements?
    

      Yes, EcoSmart Studs meet building code requirements for strength. When used with a minimum of 2 inches of spray foam insulation and an additional 3.5 inches of fill insulation, they also meet code requirements for insulation value.
    

    

    10. 

  10. 

    How does insulation work?
    

      Insulation works by reducing the transfer of heat between the inside and outside of a building, helping to maintain a consistent indoor temperature. It does this by trapping air pockets that slow down heat flow. EcoSmart™ Studs enhance this process by incorporating slots and gaps that allow spray foam insulation to fill more space within the wall. This design minimizes thermal bridging—where heat would normally pass through solid wood studs—resulting in a higher overall R-Value.
    

    

    11. 

  11. 

    Are EcoSmart™ Studs available for purchase nationwide?
    

      Yes, we can arrange for EcoSmart Studs to be shipped to your job site anywhere in the United States.
    

    

    12. 

  12. 

    Are EcoSmart™ Studs available in Canada as well?
    

      

    • 

        Yes, we are working on distribution and shipping into Canada.
      

      • 

    

    

    13. 

  13. 

    Is training required for workers who will be using EcoSmart™ Studs on a building project?
    

      Some training may be required to ensure that workers know how to use EcoSmart Studs properly. However, in general, they can be used in the same way as traditional studs.
    

    

    14. 

  14. 

    Can EcoSmart™ Studs support the same loads as normal studs?
    

      Yes, EcoSmart Studs are capable of supporting the same loads as traditional studs. In certain commercial situations, 2×8 EcoSmart Studs may be needed on the bottom floors to meet loading requirements.
    

    

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