What is the maximum carpet pad thickness that should be used?

Author: Lue Friesen  |  Last update: Monday, December 1, 2025

The thickness of the padding will have a direct impact on the comfort level it offers, as well as its insulating qualities – both in terms of temperature and noise. As a general rule of thumb, most carpet installers recommend using carpet padding for residential spaces that are: No more than 7/16 of an inch thick.

What is the best thickness for carpet pad?

Most residential carpet requires a pad that is between 3/8 of an inch and 7/16 of an inch thick with a minimum 6-pound density rating. However, low-profile carpets, such as berber, should not use padding that is thicker than 7/16 of an inch (3/8 of an inch is commonly recommended).

Can I use 2 layers of carpet padding?

The short answer is that doubling up on underlay is not recommended and, in fact, can cause more harm than good. But before we dive into why you should avoid multiple layers, let's explore what an underlay is and the critical role it plays in the flooring installation process.

Is 1/2 inch too thick for a rug pad?

How thick should an area rug pad be? The recommended thickness is between ¼ and ⅜ inches.

Is a 10 pound or 8 pound carpet pad better?

8lb, 7/16” Rebond Padding

Most importantly, it is cushy and comfortable underfoot! The lighter density pad, 4 or 6lb will be cushy but not withstand traffic for years to come. And on the opposite spectrum, a 10lb will be durable but is very firm underfoot. The 8lb, 7/16” rebond pad is our most popular pad.

How to Choose the Best Carpeting Padding for you !

What is the most commonly used padding under carpeting today?

Bonded Urethane: This carpet cushion is also called rebond and is the most popular type of carpet padding sold today.

Is an expensive carpet pad worth it?

While high-quality carpet padding might have a higher upfront cost, it is a worthwhile investment considering the extended lifespan it provides to your carpet. A better-quality underlay can prevent the need for premature carpet replacement, saving you money in the long run.

How much should a rug hang over the pad?

Make sure to measure your rug, and then mark off your rug pad so that the finished pad will leave approximately one inch of rug overlap on all sides. That doesn't include any decorative edges or fringes.

Can you use an 8x10 rug pad for a 9x12 rug?

A 9' x 12' area rug would work best with an 8'10" x 11'10" rug pad with up to 1/2" thickness.

Does the rough side of a rug pad go on the floor?

The soft side goes on the floor, the more abrasive side up against the backside of your rug.

Does carpet padding need to be stapled down?

The carpet padding should cover the entire floor you plan to carpet. Use a staple hammer-tacker to fasten the carpet pad along the edge of the tack strip. Trim excess pad at the edge of the tack strip. Staple the carpet pad at the seams, alternating the staples so they aren't next to each other.

Can carpet underlay be too thick?

Stairs and hallways

Moreover, thicker carpet underlays tend to compress slightly with heavy use, which can lead to irregular wear and unsightly lumps, particularly in frequently trodden areas.

Does the plastic side of carpet padding go down?

To face a carpet pad the right way simply lay the pad so the rubber side is up and the softer side is down.

Does a carpet pad need a moisture barrier?

However, without the barrier, a larger puddle is likely to soak down through the pad and into the subflooring. In this case, moisture barrier padding could save a lot of money on subflooring repairs in the future. For those with small pets, this padding may not be necessary .

Is 7lb carpet padding good?

Residential carpet padding generally calls for something more comfortable underfoot. We recommend 6.5 to 8 lb., 7/16” bonded padding or 10 to 12 lb., ½” frothed foam. However, when installing looped (Berber) carpets, you need a denser, thinner pad such as a flat sponge rubber or 6.5 lb. ¼” to 3/10” synthetic fiber.

What is the ideal thickness for a rug pad?

A rug pad should be ¼ -inch thick. A thicker rug pad will add too much height which can cause a range of issues. A ¼-inch rug pad will add the right amount of padding and make a thin rug feel a little thicker.

What can you use instead of a rug pad?

What can you use instead of a rug pad? If you're just looking for non slip grip, a simple fix to a runaway rug is to put a bead of silicone glue, hot glue, or caulking around the underside of the rug.

What is a good size carpet pad?

Most carpets call for 7/16-inch padding. Choose stiff, stable padding with a thickness of 3/8-inch or less for a low-pile carpet. This includes Berbers, loop pattern carpets and commercial options. Tip: Carpet padding should be replaced when new carpet is installed.

Are felt or rubber rug pads better?

While the rubber acts as a gripping agent to keep your rug in place, the felt offers cushioning that feels great and offers more protection.

What size rug pad for 8x10 area rug?

The rug pad should be about one inch less than your rug size on all four sides. So if the size of your rug size is 8'x10', then the rug pad size should be 7'10”x9'10”, a total of two inches less in each dimension, which is the same as one inch less on all four sides.

Does the sticky side of a rug pad go up or down?

A: The piece is folded over, so FIRST peel the two sides apart. Then position the sticky side down on the carpet. Then peel the clear plastic off of the other (now the top) side, and position your area rug on top of it.

What makes carpet look expensive?

Expensive carpets look and feel more luxurious underfoot. The quality of the fibres and materials used is higher. They are and they will last longer and wear better. In comparison a budget carpet will look and feel lower quality, and it will wear and need replaced sooner.

Is rubber carpet pad better than memory foam?

Which carpet padding offers the most comfort? Memory foam padding provides superior comfort, though it's less durable than rubber options. What's the best padding for concrete subfloors? Flat rubber or frothed foam padding works best on concrete, offering moisture resistance and comfort.

How often should carpet padding be replaced?

Frequently Asked Questions (FAQ)

Carpet padding should typically be replaced every 8 to 10 years, depending on usage, material quality, and environmental conditions. Regular replacement helps maintain underfoot comfort, reduce allergens, and extend the carpet's overall lifespan.

Previous article
How do you unclog a sink vent?
Next article
How to wash mop pads in a washing machine?