How do you remove a subfloor in a mobile home

Step 1: Remove the Trim and Floor Covering. … Step 2: Cut the Sub-Floor Out Around the Perimeter of the Room. … Step 3: Cut the Sub-Flooring Between the Joists. … Step 4: Inspect and Repair Joists. … Step 5: Add Insulation.

What kind of subfloor do mobile homes have?

Your mobile home subfloor may be made out of: OSB (oriented strand board)—made of pressed wood strips and resin adhesives somewhat like particle board. This is what most Clayton home builders use for your subfloor material.

How do you remove a subfloor without damaging joists?

One method is to use a small hole saw and drill around the nails, just the thickness of the floor. Then (after getting the sheet of plywood up) you end up with a bunch of small plywood plugs you can break off the screws/nails fairly easily, and enough nail/screw to get a grip on for removal.

How much does it cost to replace subfloor in a mobile home?

Repair of the subfloor costs between $500–$700 on average, while replacing the subfloor will cost between $1,800–$3,000. Repair of the underlying joists will cost on average $1,000–$10,000 each, while replacement will cost anywhere from $5,000–$20,000.

What size subfloor do they use in mobile homes?

Measure Your Subfloor Thickness Most subfloors are either 3/4″ or 5/8″ thick. You will use the measurement to set your circular saw to the proper height. One of the most tedious parts of replacing subflooring in mobile homes is the removal of the original sub-flooring.

Can I put new subfloor over old subfloor?

One of the benefits of removing the old flooring is it allows you the chance to fix any loose subflooring or squeaks by re-securing the main subfloor to the floor joists prior to installing the new flooring. With all that being said though the answer is YES you can install New Wood Flooring over the old.

What is the best subflooring for a mobile home?

The most recommended subfloor material is 5/8″ plywood. If you can afford water resistant marine plywood for your kitchen, laundry, and bath that would be a good idea.

Can you replace subfloor yourself?

If your subfloor is in need of replacement, the damaged portion will need to be completely cut out. This also requires the removal of all floor covering over the problem area as well as the accompanying underlayment materials. The process for this portion of the job will vary based on the type of flooring you have.

Is it hard to replace subfloor?

It’s significantly more difficult than the original install. However, with the right tools and personnel it’s about midway on the carpentry skills. If the subfloor has been glued to the joists then that increases the difficulty level tremendously.

How do you remove OSB subfloor?

If removing a piece of the OSB subflooring is the only option, use a circular saw to make a cut down the long edge of the T&G between the sheets of subflooring. Make the cut 1/8 inch less than the thickness of the OSB subflooring to prevent cutting the attic floor joist or truss bottom cord.

Article first time published on

Is replacing subfloor expensive?

ItemDIYProfessionalTotal$483$658

What is underneath a subfloor?

Underlayment: Some types of flooring can be installed directly on top of the subfloor, such as vinyl flooring. Other types need a middle layer, called underlayment, such as laminate,carpet and tile.

How do you remove glued and nailed subfloor?

Pull up on the plywood with your hands to remove it in one piece. If it begins to break, use the chisel to cut under it as you did before. Move the chisel along the line of the plywood where it’s glued and nailed to the floor or floor joist, reinsert it and continue cutting it loose by pounding it with the hammer.

Can I put plywood over subfloor?

Underlayment can also help protect the finished flooring from moisture, mold, and mildew. Plywood is a great underlayment to install over a subfloor. It is strong and durable and often very smooth without a lot of imperfections or knots.

Is plywood a subfloor?

The subfloor is always a structural layer of sheet good material—usually plywood or oriented strand board (OSB), or occasionally particleboard. Of the two most common subfloor materials, builders often debate which is best: plywood or OSB.

Does subfloor go under walls?

Wall and Floor Basics Subfloor: The subfloor is nailed to the top of the joist. Often 19/32-inch to 1 1/8-inch thick plywood or OSB, the subfloor might run continuously across the joist, or two sections of subfloor may meet on a joist. … Bottom Wall Plate: The bottom wall plate is the bottom-most part of the wall.

How far apart are mobile home floor joists?

Walls are built using wood boards called studs. Studs are the vertical boards and are normally 2″ x 4″ and spaced every 16″ in a manufactured home. That’s what the term 16″ OC, or ‘on center’ means in construction lingo. Better quality manufactured homes will have 2×6 studs and more affordable homes will have 2x3s.

Why do mobile home floors get soft?

Sagging mobile home floors: are usually a result of water damage in mobile homes with particle board flooring that doesn’t hold up well when it gets wet. Moisture Barriers Stop moisture from developing directly on the mobile home floor boards and will not allow the floors to rot.

How do you fix a sagging floor in a mobile home?

  1. Dig holes for under where the floor is sagging if it is just in one or two spots. …
  2. Use jacks which can be lowered into place in the holes, then lifted up to support the floor. …
  3. Raise the jacks a couple inches each day if they need to go higher.

What is mobile home bottom board?

The black material enclosing the base of a mobile home is known by several names: bottom board, belly board or paper, black board, etc. Typically, the material used is asphalt-impregnated fiberboard or fiberglass, cloth or heavy tar paper and woven polyethylene. All serve the same purpose: Prevent moisture infiltration.

How much does it cost to install plywood subfloor?

The average cost to replace or repair a plywood subfloor in a 306-square-foot room costs $550, or between $500 and $600. The average cost to install a new plywood subfloor is $620, or between $570 and $720. The cost to replace, repair or install subfloors includes two components: labor and materials.

Can you put laminate flooring in a mobile home?

Things You’ll Need A mobile home is a small enough space that you can easily tackle many do-it-yourself projects, such as installing laminate flooring. Flooring options with laminate come in many designs, so you can choose the style that best accents your décor.

What size plywood is best for subfloor?

The minimum thickness of plywood for subflooring is about 5/8 inch. Since it does not hold fasteners as well as plywood, OSB must be a little thicker, or at least 23/32 inch. There are several factors that determine what subfloor thickness is optimal for added benefits like insulation.

Should I screw or nail subfloor?

Using code-approved screws rather than nails is the best option for avoiding movement. If using nails for subfloor installation, stick with ring-shank nails; smooth nails may withdraw easier, leading to squeaks.

Is it better to use OSB or plywood for subfloor?

The National Tile Contractors Association and the Resilient Floor Covering Institute both recommend plywood for subflooring and underlayment, because it doesn’t have the risk of swollen edges that OSB does. Plywood also has a slight advantage in stiffness, which means that subflooring panels need not be quite as thick.

Do I need 2 layers of subfloor?

That’s the usual approach. Almost no one puts down double-thick subfloor in residential applications (for cost and handling reasons), and both layers need to be fastened to joists. Only thin underlayment can be fastened just to the subfloor.

What can I use for a subfloor?

Plywood is considered the most popular material used for subflooring, it has been used since the 1950s and remains one of the top choices for contractors. Standard plywood works perfectly fine as a subflooring material, but the best option is ¾” tongue-and-groove plywood subflooring.

Who do you call to replace subfloor?

While you can install a subfloor yourself, hiring a professional flooring contractor has significant benefits. In addition to removing old material and installing the new subfloor, a professional will know which type of material is best for your location and whether or not you need to install a moisture barrier.

How do you remove black mold from subfloor?

Treat exposed molded subflooring with a mixture of 1 cup of borax and 1 gallon of water or an EPA-registered mold removal product. Spray the solution on the moldy plywood. You can also soak affected subflooring with a brush broom. Wait 10 minutes, scrub the area, and repeat the process two more times.

You Might Also Like