Caleb Foster
Removing nailed-down planks from a subfloor can be a challenging task. Before beginning, ensure you have the necessary safety gear, including gloves, eye protection, and ear protection if using metal-on-metal tools. One popular method for removing nailed-down subflooring is to use a circular saw to cut through the plywood between the joists, being careful not to set the depth too high to avoid damaging the first layer. You can then use a pry bar and hammer to lift the boards, and a curved channelock snip to remove any remaining nails or staples. If the subfloor is glued, you may need to use a heat gun to weaken the glue before prying it up.
| Characteristics | Values |
|---|---|
| Tools | Hammer, pry bar, circular saw, heat gun, floor scraper, multi-tool, magnet, nail puller, curved channelock snip, cat's paw, manual tamper, toe kick saw, sawzall, floor jack, car jack, plywood, gloves, eye protection, ear protection |
| Techniques | Cut the plywood into squares, pry up an edge, finish prying the board, remove nails, cut the perimeter of the area, drill around the nails, snap the subfloor off, cut the floor into sections, pry everything up, glue and screw on blocking, cut primary floor around edges |
| Challenges | Water damage, broken edges, nails in joists, difficulty removing nails, finding lingering nails, glued floor |
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What You'll Learn
Wear protective gear, including gloves, eye protection, and ear protection
When removing nailed-down planks from a subfloor, it is important to wear protective gear to shield yourself from injuries and airborne particles. Gloves are essential to protect your hands from sharp edges, broken nails, and splinters. Eye protection, such as safety goggles, will shield your eyes from dust, debris, and any flying particles during the removal process.
If you are using metal-on-metal tools, ear protection is also crucial to safeguard your hearing from the loud noises produced by the tools. It is easy to get caught up in the task and forget to wear protective gear, but it is important to make it a priority to ensure your safety. Additionally, consider wearing a dust mask to protect yourself from inhaling harmful toxins and a knee pad to provide comfort and protection for your knees during the removal process.
Before beginning the removal process, carefully inspect the flooring for protruding nails, staples, or other hazards that could cause injury. Identify and mark the location of nails securing the planks to the subfloor. This will help you avoid accidental cuts or injuries during the removal process. It is also recommended to work in sections, starting at one corner of the room and gradually moving across. This helps to stay organized and prevents the task from becoming overwhelming.
Furthermore, when using power tools such as a circular saw to cut through the plywood, ensure you are wearing the appropriate protective gear, including eye and ear protection. It is also important to set the depth of the cut to the thickness of the plywood you want to remove, erring on the shallow side to avoid damaging the underlying layer. By taking these precautions and wearing the necessary protective gear, you can help ensure a safe and successful removal process.
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Use a circular saw to cut the plywood into squares
Using a circular saw to cut plywood into squares is a common practice, but it requires careful preparation and execution to ensure a straight and accurate cut. Here is a step-by-step guide to help you achieve the desired result:
Step 1: Prepare the Work Area and Gather the Right Tools
Before you begin, ensure you have a clear and well-lit work area. Gather all the necessary tools, including a circular saw, a high-quality blade designed for fine cuts, a straight edge guide, a speed square, rigid foam board or sawhorses, eye and ear protection, and gloves.
Step 2: Set Up the Plywood and Create a Reference Edge
Place the plywood on top of a sheet of rigid foam or on sawhorses to provide a stable base for cutting. If using foam, make sure it's thick enough to fully support the plywood and protect the saw blade. If your plywood has a factory edge, you can use it as a reference. Otherwise, create a straight reference edge by clamping a long, straight edge to the plywood or screwing a straight edge directly into it.
Step 3: Adjust Your Circular Saw and Blade Settings
Ensure your circular saw is set to the correct depth by adjusting it to just below the thickness of the plywood. A shallow setting is preferable to avoid damaging the underlying surface. Choose a blade with a high tooth count for a smoother cut, and make sure it's designed for fine cuts in sheet goods rather than aggressive cuts in construction lumber.
Step 4: Determine the Cutting Order and Direction
Plan the order of your cuts to ensure square corners. Remember that subsequent cuts at 90 degrees from your first straight line will result in square corners. Additionally, consider the direction of your cuts. A circular saw typically cuts on the upstroke, so adjust your plywood so that the best face, the one that will be most visible in your project, is facing down to prevent chipping and splintering.
Step 5: Use Tape and a Speed Square as Guides
Apply tape to the cutting path to prevent scuffing, provide visible marks, and reduce chip-out. Use a Speed square as a saw guide to achieve a perfect square cut. Place the square and the bulk of the saw on the side of the board you want to keep and line up the blade to cut on the scrap side.
Step 6: Execute the Cuts
With your blade depth set correctly, make several cuts along the marked lines. Remember to cut at a steady pace, keeping your saw cuts straight to avoid kickback and unintended damage.
Step 7: Finish the Squares
After making your cuts, knock away any remaining material between the cuts with a screwdriver or chisel. Your plywood should now be divided into squares, ready for further use or removal.
Remember to always prioritize safety when working with power tools. Take your time, wear the appropriate protective gear, and follow the specific instructions provided by the manufacturer of your circular saw.
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Pry up the plywood with a pry bar
Pry bars are a great tool to remove nailed-down plywood flooring. The process can be time-consuming and tedious, but with the right tools and techniques, it can be done efficiently. Here is a step-by-step guide to help you through the process:
First, locate the edges of the plywood where it is exposed. Hammer in a short pry bar at the edge of the plywood, working parallel to the joists. Use existing nails as a guide to locate the joists. Work your way along the edge, gently prying and getting some clearance under the plywood. Once you have enough space, switch to a longer pry bar to work the rest of the plywood up. Go slowly and work alternately along each joist to avoid bending the plywood too much.
If you are unable to get an edge up with a short pry bar, another method is to use a circular saw to cut the plywood into smaller sections. Cut the plywood into a grid of roughly 16" squares, setting the depth of the saw to the thickness of the plywood you want to remove. This will make it easier to pry up the plywood in smaller pieces. However, this method will damage the saw blade due to hitting nails, so it is recommended to use cheaper blades.
When using a pry bar, it is important to protect the plywood from damage. Use a thin metal scrap sheet that you can slide under the claws of the pry bar to spread the force over a larger area and reduce damage to the plywood. Additionally, try to pry at each nail as you gain access to it, and work slowly to avoid bending the plywood.
For extremely difficult nails, you can try drilling out the nails or grinding off the nail heads before using the pry bar. A nail punch, pin punch, or a bigger nail can also be used to pound the nail through the plywood, creating a larger hole but requiring less effort.
By following these steps and being careful and patient, you can effectively remove nailed-down plywood flooring while minimising damage to the plywood and the underlying structure.
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Remove nails with a hammer and curved channelock snip
Removing nailed-down planks from a subfloor can be a challenging task, but with the right tools and techniques, it can be accomplished efficiently. One effective method for removing nails from a subfloor is to use a combination of a hammer and a curved channelock snip. Here is a step-by-step guide to help you through the process:
Step 1: Prepare the Work Area
Before beginning any work, it is important to ensure your safety. Wear protective gear, including gloves and eye protection, to safeguard against sharp edges and flying debris. If you will be using metal-on-metal tools, it is also recommended to wear ear protection.
Step 2: Lift the Planks
Start by using a pry bar and a hammer to lift the nailed-down planks. Place the pry bar underneath the edge of a plank and gently tap it with the hammer to create leverage and lift the plank slightly. This will give you access to the nails.
Step 3: Remove Nails with Hammer and Curved Channelock Snip
Once you have lifted the plank, you can begin removing the nails. Use the hammer to strike the curved end of the channelock snip, applying force directly to the nail head. This will help drive the nail back through the subfloor. Be careful not to strike the nail at an angle, as this may cause it to bend or break. For stubborn nails, you can also use the claw end of the hammer to grip the nail head and pull it out. Work your way through all the nails securing the plank, then repeat the process for each subsequent plank.
Step 4: Smooth the Subfloor
After removing all the nails and planks, inspect the subfloor for any remaining nail stubs or sharp edges. Use the hammer and channelock snip to smooth out any rough areas and ensure a flat surface.
Step 5: Dispose of Nails and Debris
Finally, collect all the removed nails and dispose of them properly. Sweep the area to remove any debris and wood remnants, ensuring a clean and safe work area.
Remember to take your time and work carefully to avoid damage to the subfloor or any surrounding structures. This method may be time-consuming, but it is an effective way to remove nailed-down planks while minimizing the risk of damage.
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Clean up with a heat gun and floor scraper
Clean-up with a heat gun and floor scraper is an efficient way to remove nailed-down planks from a subfloor. Here is a step-by-step guide:
Prepare the Work Area:
First, ensure you have the necessary tools and safety equipment. You will need a heat gun, floor scraper, protective gloves, and eye protection. If using metal-on-metal tools, ear protection is also recommended.
Soften the Adhesive:
Apply heat to the nailed-down planks using the heat gun. This will soften the glue or adhesive beneath the planks, making them easier to remove. Work in small sections at a time to prevent damage to the subfloor.
Pry and Scrape:
Once the adhesive is softened, carefully pry up the planks using a pry bar or putty knife. Gently lift and remove the planks, being cautious not to damage the subfloor. After removing each plank, use the floor scraper to scrape away any remaining adhesive or glue residue.
Clean the Subfloor:
After removing all the planks, inspect the subfloor for any remaining adhesive or glue residue. Use the floor scraper or putty knife to scrape away as much of the residue as possible. If necessary, use a solvent or adhesive remover to break down stubborn adhesive remnants. Always test the solvent on a small area first to ensure it won't damage the subfloor.
Final Touches:
Once the majority of the adhesive residue has been removed, use warm water and soap to soften and remove any remaining residue, especially if the adhesive is water-based. For solvent-based adhesives, you may need to use a special remover. Finally, give the subfloor a thorough sweep and vacuum to ensure it is clean and ready for inspection.
By following these steps and working carefully, you can effectively remove nailed-down planks from a subfloor using a heat gun and floor scraper.
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Frequently asked questions
Use a circular saw to cut through the plywood between the joists. Set the saw depth to the thickness of the plywood you want to remove, and err on the shallow side to avoid damaging the first layer.
Wear good gloves and eye protection. If you're using metal-on-metal tools like a saw, also wear ear protection.
You can use a pry bar and hammer to lift the planks, then a 4-6 inch curved channelock snip to remove the nails. You can also use a nail puller, which typically has three steps.
Look for lines of nails or screws, which will be spaced more closely along the joists. You can also use a magnet to help locate them.
Use a medium-sized pry bar and hammer to get an edge up, then finish prying the board up with a long steel bar or manual tamper.
