Furring Out Walls? DIY Guide & Costs You Need to Know!

Achieving perfectly plumb walls in older homes often requires furring out. Drywall, a common wall finishing material, benefits greatly from a level surface. The process of furring out, which involves attaching wood or metal strips to a wall to create a level plane, can be greatly simplified using tools like a laser level. Many DIYers find that mastering this technique significantly improves the aesthetics and stability of their finished walls.

Furring Out Walls: A Complete DIY Guide & Cost Breakdown

Furring out walls, also known as strapping, is the process of adding strips of wood or metal (furring strips) to an existing wall to create a level surface, provide space for insulation, improve air circulation, or prepare for new wall coverings. This guide will walk you through the DIY process, covering everything from planning to installation, along with an estimated cost breakdown.

1. Understanding Furring Out

Before diving into the how-to, it’s crucial to understand why you might consider furring out a wall.

• Reasons to Fur Out a Wall:

  • Creating a Level Surface: Correcting uneven or bowed walls.
  • Insulation: Creating a cavity for insulation, especially in older homes.
  • Improved Airflow: Reducing moisture buildup and potential mold growth.
  • Wire Management: Providing a space to run electrical wires or plumbing.
  • New Wall Coverings: Preparing for specific finishes like paneling or wainscoting.

• Types of Furring Strips:

  • Wood: The most common and affordable option. Typically pine or fir, available in various dimensions.
  • Metal: More durable and resistant to moisture/fire. Often used in commercial or high-moisture environments.
  • Plastic/Composite: Lightweight and moisture-resistant, suitable for some applications.

2. Planning Your Furring Project

Careful planning is essential for a successful furring project.

• Assessing the Wall:

  1. Identify the Problem: Determine why you’re furring (unevenness, insulation, etc.).
  2. Check for Moisture: Address any existing moisture problems before furring. Use a moisture meter to check for dampness. Resolve any leaks or sources of humidity.
  3. Locate Utilities: Mark the location of any electrical wires, plumbing, or other utilities behind the wall to avoid damage during installation. Use a stud finder with wire-detection capabilities.

• Calculating Materials:

  • Furring Strip Spacing: Determine the appropriate spacing based on your wall covering and local building codes. Common spacing is 16" or 24" on center (OC).
  • Strip Length: Measure the height of the wall to determine the required length of the furring strips.
  • Fasteners: Choose appropriate fasteners (nails, screws) based on the wall material and furring strip material.
  • Insulation (if applicable): Calculate the amount of insulation needed based on the furring cavity dimensions.

• Essential Tools & Materials:

  • Furring strips (wood, metal, or plastic)
  • Fasteners (nails, screws, construction adhesive)
  • Level (spirit level or laser level)
  • Stud finder
  • Measuring tape
  • Saw (circular saw, hand saw)
  • Drill/Driver
  • Safety glasses
  • Dust mask
  • Hammer
  • Shims (for leveling)

3. Step-by-Step Installation Guide

This section provides a detailed, step-by-step guide to furring out a wall.

1. Prepare the Wall: Clean the existing wall surface, removing any loose paint, wallpaper, or debris.

2. Locate Studs: Use a stud finder to locate the existing wall studs. Mark their positions clearly.

3. Install the First Furring Strip:

   • Position the first furring strip vertically, typically along the edge of the wall or directly over an existing stud.
   • Use a level to ensure it’s perfectly plumb (vertical).
   • Fasten the strip securely to the studs using nails or screws. If necessary, use shims behind the strip to achieve perfect alignment.

4. Install Subsequent Strips:

   • Measure and mark the desired spacing (16" or 24" OC).
   • Position the next furring strip at the marked location.
   • Use a level to ensure it’s plumb and align it with the first strip.
   • Fasten the strip securely to the studs.

5. Leveling and Shimming:

   • Regularly check the furring strips for level using a long level or laser level.
   • Use shims behind the strips to correct any imperfections or unevenness. Secure the shims with construction adhesive.

6. Dealing with Obstructions:

   • Electrical Outlets/Switches: Extend the electrical boxes so that they are flush with the new furred-out wall surface. This may require box extenders.
   • Windows/Doors: Carefully measure and cut the furring strips to fit around window and door frames.

7. Insulation (Optional):

   • If adding insulation, install it between the furring strips after they are securely fastened.
   • Ensure the insulation is properly fitted and doesn’t compress excessively.

4. Cost Considerations

Understanding the costs involved will help you budget effectively.

• Material Costs:
  • Furring Strips: Wood furring strips typically cost between $1 and $5 per piece, depending on the length and type of wood. Metal furring strips are more expensive.
  • Fasteners: Nails or screws usually cost between $10 and $20 per box.
  • Shims: Shims are relatively inexpensive, costing around $5 to $10 per pack.
  • Insulation: The cost of insulation varies depending on the type and R-value.
• Labor Costs (if hiring a professional): Labor costs can vary significantly depending on the region and the complexity of the project. Expect to pay between $50 and $100 per hour for a professional contractor.

• Example Cost Breakdown (for a 10ft x 8ft wall using wood furring strips at 16" OC spacing):

  Item	Estimated Cost
  Furring Strips	$50 – $100
  Fasteners	$15
  Shims	$10
  Insulation (Optional)	$50 – $150
  Total	$125 – $315

  This is an estimated cost and can vary depending on the specific materials used and the complexity of the project. Remember to factor in the cost of tools if you don’t already own them.

So, there you have it! Hopefully, you now have a better understanding of furring out your walls. Give it a shot, and remember, take your time. You’ll be amazed at the difference it makes!