RV slide-out floor thickness?

RV slide-outs are an incredibly convenient and popular feature of many modern recreational vehicles, allowing for greater interior space and flexibility of design. However, it is important to consider the thickness of the floor when selecting an RV with a slide out.

The standard thickness for an RV slide-out floor is usually 3/4″ to 1″ inch plywood and extra any floor covering. All you have to do is lift the carpet flap up and look. This type of plywood offers good overall strength and rigidity without being too heavy or bulky. 

When mounting, consider using a flush-headed carriage bolt for an unobtrusive hold. If that isn’t suitable, then pick either a short lag screw or size/#14 sheet metal screw to get the job done!

Depending on your needs, you may also find plywood, hardboard, or even aluminum can be used in some cases to increase durability and stability. It’s important to keep in mind that thick materials will add extra weight to the RV, so this should be taken into account when making a selection.

In addition to strength and durability, you’ll also want to consider other factors such as insulation, soundproofing, and water resistance when selecting an RV slide-out floor material. If you live in a colder climate, it might be worth investing in a material that provides better insulation than plywood alone. You may also want to choose materials like hardboard or aluminum which offer some additional soundproofing and protection from moisture intrusion. No matter what material you end up using for your RV slide-out floor, make sure it is thick enough and built to last! With proper installation and regular maintenance, your slide out floor should provide years of reliable use.  

Tips to Replace the Flooring Inside a RV Slide Out

When the flooring inside a RV slide out begins to wear down, it is important to replace it as soon as possible. Here are some tips to help make this an easier and more successful project:

  • Measure the area of your slide-out before purchasing materials so you can buy enough for the job.
  • Select a material that offers good durability, insulation, and water resistance. Hardboard or aluminum can be great choices in this regard.
  • Use appropriate fasteners such as flush headed carriage bolts or size/#14 sheet metal screws when mounting.
  • Take into account the extra weight added by thicker materials so your RV can handle it without issue.
  • Make sure all seams and edges are securely sealed with caulk to prevent moisture intrusion.
  • Regularly inspect, clean and maintain the slide out floor for optimal performance.

By following these tips, you can be confident that your RV slide out will provide years of reliable use!


Selecting the right material and installing it properly is absolutely essential when replacing the flooring inside a RV slide out. Plywood or hardboard are good all-purpose materials, although aluminum offers additional soundproofing and water resistance properties. Make sure to measure the area before purchasing materials to ensure enough is bought for the job, then use appropriate fasteners such as flush headed carriage bolts or size/#14 sheet metal screws when mounting. Regular inspection and maintenance should also be done to ensure optimal performance. By following these tips, you can be sure the flooring inside your RV slide out will last for years to come! 

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