Best Sanders for Decks | Top Picks for Refinishing

Wooden decks are very popular in households as they are highly durable and very attractive. To make sure they last you for decades to come and maintain their alluring look, you need to take good care of them.

Maintaining wooden decks is a pretty challenging task, but the process is much easier when you have the right tools.

With the right sander, you can restore the attractive look of your deck and prolong its durability. While there are many sanders on the market, only a few of them are ideal for deck refinishing.

In this guide, we will review some of the best sanders for decks. We will also leave you with some pointers to making the right choice when shopping for this tool.

Our top pick is the Makita 9403 4” x 24” Belt Sander. This sander is great for deck refinishing and it comes with a very powerful motor that delivers great sanding speed. It also comes with a pretty large sanding belt that allows you to cover large surface areas in less time.

The Best Sanders for Decks Are:


1. Makita 9403 4” x 24” Belt Sander — Best Sander for Deck Refinishing

Makita 9403 4" X 24" Belt Sander

On your quest for the best deck sander, you need a sander that is not too light to get rid of stocks in a single pass and not too heavy to glide.

The Makita 9403 Belt Sander is one of the perfect sanders for this job. This sander features a well-balanced body and it weighs 13 pounds, which is just right for this task.

It does a pretty good job of removing stocks from the surface of the deck quickly and easily. This is a pretty powerful sander, as it comes with an impressive 11-amp motor that delivers a single speed of 1,640 feet per minute for fast stock removal.

The belt is 4 inches wide and it covers a large surface area. It is also very easy and comfortable to hold, thanks to its large front grip.

It also comes with a flawless dust collection system that collects over 95 percent of the dust it produces. You do not even need additional tools when using this sander, as its nose can even reach tighter corners.

It also generates low noise, with a noise level of 84 dB. This sander features labyrinth construction that seals and protects the bearings and motor from contamination.


  • Speed: 1,640 RPM
  • Size: 4 Inches by 24 Inches
  • Motor: 11 Amps
  • Power Source: Electric-Powered
  • Weight: 13 pounds


  • Motor and bearings are sealed and protected
  • Delivers efficient and fast sanding
  • Generates less noise
  • Powerful motor for a great finishing


  • Just a single-speed motor


2. DeWALT DWE6423K Random Orbit Sander

DEWALT Random Orbit Sander, 5-Inch (DWE6421K)

Another great sander that is ideal for deck refinishing is the DeWALT DWE6423K Random Orbit Sander. This is a very powerful sander, although the aforementioned sander has more power ratings. The power rating of this model is 3 amps and it offers a variable speed ranging from 8,000 RPM to 12,000 RPM.

This is a highly versatile sander and it is also a budget-friendly option. It is an all-round sander, and it comes in handy from removing paints down to polishing elusive pieces of furniture. This would also be a great investment for hobbyists and DIYers, as you can use it for other projects besides deck finishing.

The tool has a shorter height, and this helps to reduce the distance between the workpiece and the user. You can also use this tool to work for long without feeling fatigued, thanks to its rubber over-mold handle.

DeWALT also designed this tool to reduce vibration. It is also protected against dust, thanks to the dust-sealed switch. This unit comes with an enhanced dust collection system with a one-handed locking dust bag.


  • Speed: 8,000 to 12,000 RPM
  • Size: 5 Inches
  • Motor: 3 Amps
  • Power Source: Electric-Powered
  • Weight: 4 pounds


  • Highly versatile sander
  • Lightweight and very easy to use
  • Can be used for a variety of tasks
  • Inexpensive


  • Needs an adapter to connect different vacuums


3. SKIL 7510-01 Sandcat Belt Sander

SKIL 7510-01 Sandcat 6 Amp 3-Inch x 18-Inch Belt Sander with Pressure Control

If you are on a budget and you are looking for the best deck sander, we highly recommend you go for the SKIL 7510-01 Sandcat Belt Sander. However, despite its low price, this unit still boasts of great performance.

This belt sander has the durability and muscles for a deck. You can use it to refinish your deck and bring back the alluring look of your deck.

When it comes to performance, this machine comes with a 6-amp motor that delivers a great sanding speed. It also comes with pressure control technology that warns you when excessive pressure is applied. This feature alone makes a great sander for deck refinishing.

The belt of this 3-inch by 18-inch belt sander will always be centered on track, thanks to its auto-track system. It comes with a micro-filtration system that captures and holds fine dust particles.

With this tool, you can say goodbye to doing guesswork on when to empty the canister, as it comes with a clear view dust canister. The motor delivers a sanding speed of 3,400 RPM.


  • Speed: 3,400 RPM
  • Size: 3 Inches by 18 Inches
  • Motor: 6 Amps
  • Power Source: Electric-Powered
  • Weight: 6.75 pounds


  • Great value for money
  • Budget-friendly
  • Offers more control
  • Pressure control technology to warn you of excessive pressure


  • Not the most effective dust collection system
  • A single-speed motor


4. Bosch ROS20VSC Palm Sander

Bosch GET65-5N 5 In. Dual-Mode Random Orbit Sander

Next on the line is the Bosch ROS20VSC Palm Sander. After several testing and research, we found this sander worthy of being on this list. It is a very powerful sander, and one of the top choices of many woodworkers. This sander is small, compact, and very easy to use.

It is a variable speed random orbital/polisher kit and it comes with a very efficient dust collection system. It delivers a very smooth finish, and it comes with a pad dampening system that helps to eliminate swirl marks on flat and contoured surfaces. This unit also features a hook and loop disc attachment system that makes it very easy to change sandpapers.

The power rating of this unit is 2.5 amps with a no-load speed of 7,500 RPM to 12,000 RPM. The package includes a soft backing pad, sanding disc, vacuum hose adapter, and a contractor bag.

It is very comfortable to use and it allows you to choose the right speed for the task. It also has an inbuilt microfiber system that traps particles that are as small as .5 micron in diameter.


  • Speed: 7,500 to 12,000 RPM
  • Size: 5 Inches
  • Motor: 2.5 Amps
  • Power Source: Electric-Powered
  • Weight: 3.5 pounds


  • Lightweight, making it a great option for prolonged uses
  • Ergonomic and comfortable to use
  • Dust collection system is very effective
  • Delivers a very smooth finish and eliminates swirl marks on surfaces


  • Dust bag is not large and fills up quickly


5. Hitachi SB8V2 Variable Speed Belt Sander

Metabo HPT Belt Sander, Variable Speed, 3-Inch x 21-Inch V-Belt, 9.0 Amp - 1020W Motor, Soft Elastomer Grip, 5-Year Warranty (SB8V2)

If you are looking for a simple and very easy to use sander for deck refinishing, then you should consider the Hitachi SB8V2 Variable Speed Belt Sander. This unit comes with a variable speed dial as well an elastomer grip handle that makes it very easy to use and handle. It features a compact build that makes it easy to transport and control.

This sander comes with a pretty large dust collection system, and slipping it off and on is pretty easy too. The size of this sander’s belt is 3 inches by 21 inches, and it covers larger areas while sanding. It comes with a very powerful 9-amp motor with variable speed control. The variable speed range of this sander is from 820 FPM to 1,475 FPM, and this makes the tool highly manageable during any operation.

It also comes with a tracking window that enhances the visibility of the sanding belt and sanding surface during use. This sander features a wear-resistant V-belt that drives the tool for double the service life. This is one of the best options for sanding your deck, it weighs only 9.5 pounds, and it comes with a whopping 5-year warranty.


  • Speed: 820 to 1,475 RPM
  • Size: 3 inches by 21 inches
  • Motor: 9 Amps
  • Power Source: Electric-Powered
  • Weight: 9.5 pounds


  • Comes with many great features for a little price
  • Super powerful motor for smooth and fine finishing
  • It is highly durable
  • Soft elastomer grip for comfortable handling


  • The sheet is smaller


6. Bosch OS50VC Electric Orbital Finishing Belt Sander

Bosch OS50VC Electric Orbital Sander - 3.4 Amp 1/2 in. Finishing Belt Sander Kit with Vibration Control for 4.5 in. x 9 in. Sheets

If you are looking for a heavy-duty and powerful sander for deck finishing, then the Bosch OS50VC sander is right here for you. This unit comes with a powerful 3.4-amp motor that delivers variable speed.

It also comes with an extensive .5 inches sheet sanding pad that is great for large decks. This is a unique sander, as it is difficult to find a sander that comes with a .5-inch sanding pad.

This orbital sander is sturdy, strong, and durable, with steady movement and fewer vibrations. It is also very easy to handle, thanks to its inbuilt suspension mechanism. Bosch also integrated a Sheetloc clamping system into this tool to help keep it in place.

You can also use this tool on any wood surface, thanks to its variable speed control. This feature allows you to customize the speed to suit your sanding needs. The speed of the machine ranges from 8,000 RPM to 11,000 RPM.

This tool features an aggressive look, and the credit goes to its attacking design and aluminum casing. It weighs 9 pounds, and it is not too heavy or too light.

It comes with a dust canister that does a great job of collecting even the tiniest dust particles. It is also a highly versatile sander, as it features a flush sanding ability that sands close to vertical surfaces on three sides.


  • Speed: 8,000 to 11,000 RPM
  • Size: 4.5 inches by 9 inches
  • Motor: 3.4 Amps
  • Power Source: Electric-Powered
  • Weight: 9 pounds


  • Very powerful
  • Comes with larger sheets to cover more surface area
  • Reduce vibrations for more control
  • Highly versatile


  • It is on the higher end of the price spectrum


7. Porter-Cable 352VS Belt Sander

PORTER-CABLE Belt Sander with Dust Bag, Variable-Speed, 8 Amp, 3-Inch-by-21-Inch (352VS)

We have another Porter-Cable sander on our list. The Porter-Cable 352VS is one of the best deck sanders for refinishing a deck because of its amazing build, features, and durability.

This tool is sturdy, solid, and highly durable, thanks to its complete metal build. You might be expecting this tool to be heavy since it features a complete metal build. Interestingly, it is one of the lightest sanders for a deck on our list, as it weighs only 10 pounds.

The metal case also protects the motor against heat during prolonged use. This means the motor will continually remain cool, and this helps to extend its lifespan. Talking about the motor, the power rating of the motor is 8 amps. It is very powerful and it delivers variable speed ranging from 850 FPM to 1,300 FPM.

With this tool, you do not need to worry about cleaning after work, as it comes with a pretty large dust collection bag. The dust bag is also very flexible, as it moves 360 degrees; this feature is to enable you to move it out of your way when necessary. You can also use this tool to sand adjoining surfaces, thanks to its flush sanding feature.

This sander can also reach every corner of your deck; all credit goes to its solid ceramic aluminum oxide belt. The quick-release belt changer is also there to make belt changes very easy and quick.


  • Speed: 850 to 1,300 RPM
  • Size: 3 inches by 21 inches
  • Motor: 8 Amps
  • Power Source: Electric-Powered
  • Weight: 10.75 pounds


  • All-metal construction for durability
  • Variable speed dial for more control
  • Well-balanced and lightweight
  • Effective dust collection bag


  • Incorrect cord placement


Things To Consider When Buying A Sander For Deck

There are different types of sanders on the market, and there are several factors you need to consider in order to pick the best sander for your deck shine.

The following are some of the vital factors you need to put into consideration before buying:

Sanding Area

Before you set out to buy a sander, you need to ask yourself what type of deck you want to use the tool on. If your deck has variable corners or surfaces, we highly recommend you go for a versatile sander that can work on all the surfaces and corners.

Nevertheless, if you have a very flat deck, then your primary focus should be on power and speed.


The size of a sander is also a very important factor to consider. When it comes to size, your focus should be on the size of the pad instead of the size of the model itself.

The wider the size of the pad, the more surface area it is likely to cover. Also, you should keep in mind that random orbital sanders are a bit difficult to get into corners.

On the other hand, belt sanders are a bit heavier and bulkier, so you should get ready for a little muscle exercise when using this tool for a long period.

The Power Of The Motor

If you want to know how strong the sander is, you should measure the size of the motor. The motors of all the sanders on our list are measured in amps.

For handling deck jobs, we recommend you go for a sander with nothing less than 3 amps. Anything less than that might result in more work time.

The Speed Of The Motor (Variable Speed)

The speed of the motor will also play a major role in the efficiency of your job and how much time the sanding session will take. Decks have different surfaces, as such, it would be if you go for a sander with variable speed control.

With this option, you will be able to adjust the speed of the machine to match the tenderness of the deck’s surface.

You would need high speed for the floor of the deck. However, a lower speed will do the job for the banisters. A single-speed control can damage some areas of your deck if you are not very careful.

However, single-speed models are much cheaper. In all, we highly recommend a variable speed model.

Dust Collection

Sanders generates a lot of debris and dust while in use. This is why many sanders come with dust collection systems. However, some are more effective than others, and you surely want to end up with a very effective dust collection system.

We highly recommend you go for a sander with a built-in dust collector, as they are more effective and keep your workspace free of dust and debris.


We hope our top recommendations and buyer’s guide will help streamline your decision-making process. Our top recommendation for the best deck sander is the Makita 9403 4” x 24” Belt Sander because it comes with a pretty powerful motor and great sanding speed. The belt size is also large, and it will cover a large surface area, making your job easy and quick.

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