Burning, sanding or sawing the C.C.A.-treated wood releases the arsenic as smoke, ash or sawdust. The environmental agency recommends never burning the treated wood and sawing or sanding outdoors, where there is ample ventilation.

Can you sand new pressure-treated wood?

So, yes, you can sand the wood before staining it, but the pressure treatment is often sold “damp” (almost wet) from the mill. It will probably be better to at least wait for that to dry thoroughly – perhaps 10–15 days.

Should I sand my deck?

Sand the Deck If you plan to stain the deck, sand the surface before application to make the wood better absorb the coating. Use an orbital sander to remove any old gloss and smooth out any rough areas on decking boards. … After sanding, vacuum the deck thoroughly to ensure that dust does not settle on the new finish.

Should I sand my pressure-treated deck before staining?

Do I need to sand the deck before staining? The answer to this is “it depends.” You won’t hurt the deck by applying a light sanding. … Sanding is more for the feel of the deck than to prepare it to accept a new stain.

Can I stain my pressure-treated deck right away?

It’s important to wait until your pressure-treated wood is completely dry before applying stain, as the chemicals used to treat the wood often leave additional moisture behind. Drying times range anywhere from a few weeks to a few months, depending on such factors as weather and climate.

Is it better to stain or paint pressure-treated wood?

For similar reasons, wet lumber can hinder how well paint adheres to the wood, but the added problem of the preservatives in pressure-treated wood makes it difficult for the paint to bond; this is why it’s advisable to stain pressure-treated wood instead of paint, as painting requires additional preparation.

What type of sander do you use to sand a deck?

A random orbital sander is a specialized tool that sands wood in an elliptical pattern. It’s the most efficient sander to use when refinishing a deck, as they’re easy and practical to use.

Should I sand my deck after pressure washing?

Make sure your deck is thoroughly dry before you sand. If there has been recent rainfall or if you have power washed, wait several days before sanding. Treat the deck surface, the railings, and the edges of boards as different tasks, varying the sanding techniques for each.

Can you sand a deck after it rains?

2. Now you can start sanding. It’s important that you make sure there is no chance of rain when you begin to sand. If the wood gets wet after it’s been sanded, but not before you’ve had the chance to stain or paint it, you’ll be back to square one — you’ll need to wash and sand it all over again.

What happens if you don't sand before staining?

You need a smooth surface with no blemishes because stain will highlight scratches and dings in the wood. Always sand down to clean wood (if you have enough meat left of the wood) before applying any stain. … Too fine and the wood won’t be able to accept the stain.

Article first time published on

How do you make pressure treated wood look natural?

Stain the micronized pressure-treated wood, using a staining paintbrush to apply a light coat of wood stain. Make sure to overlap brush strokes to ensure an even coat and force the stain into any divots. The pressure-treated wood will absorb the stain as it dries.

How long does a pressure treated deck last?

It depends on the climate, the type of wood, its uses, and how well it’s maintained. While pressure treated poles can stay up to 40 years without any signs of rot or decay, decks and flooring might only last around 10 years.

Should I sand or clean my deck first?

You need to clean the deck after sanding to remove all the dust and open up the pores in the wood that get clogged when sanding.

What is the green stuff on pressure treated wood?

Why is some treated wood green? The green color you see on treated wood is caused by chemical reactions that take place between the preservative components and the wood. Copper is still the most widely used element in wood preservatives and creates a green color on the wood.

Can you stain pressure treated 4x4?

Kiln dried pressure-treated lumber: Dry treated wood is ideal because you can confidently stain it right away with either oil- or water-based exterior stains. To recognize it, look for a tag or stamp that says KDAT (kiln-dried after treatment) or ADAT (air-dried after treatment).

How long should deck dry before staining?

Always make sure the deck is clean and dry before you begin staining. Wait at least 24 hours after washing your deck to apply stain. Also, try to avoid staining your deck right before it rains. Most stains require at least 2-3 hours for drying.

Can you use a pole sander on a deck?

Sanding the Deck Sanding by hand with a pole sander is the safest method for both you and the deck, but can be very slow. You can use a vibrating or random-orbital sander, but it’s important to keep sanders moving to avoid making marks on the deck.

Can I use a drum sander on my deck?

A flooring drum sander removes too much material too quickly to use safely on a deck. Most decks are made from softwoods, and the surface is more uneven than an interior floor. Every time you run over a bump on a deck with a drum sander, you’re likely to create a deep gouge.

What happens if you stain pressure treated wood?

Recently, pressure treated lumber will have a high moisture content and may take several weeks to dry. Staining pressure-treated wood is ineffective if the wood is still wet. … Pressure treated wood that contains a water repellant will not absorb a water-based stain as well as an oil-based exterior stain.

Does pressure treated wood need to be sealed?

However, most pressure-treated wood should have periodic sealing against moisture, preferably every year or so. Although the wood is resistant to rot and insect attacks because of the pressure treatment, it can warp, split and develop mildew if not protected from the effects of water.

What happens if you don't stain pressure treated wood?

The effects that can occur due to a lack of treatment are aesthetic in nature. After 6 months, the wood will start to lose its color and will begin to fade. Ultimately it will fade to grey or silver. This is not a problem in and of itself, and some people prefer this look for their decks.

How long should deck dry before sanding?

Once the deck is clean, let it dry for the recommended time – between 24 and 48 hours is common – before sanding.

What happens if you sand a wet deck?

In the end, you get a smooth and glossy finish on the completed project. When you wet sand your wood in a project, the highest grit you may use should be around 200 to 2,000. The higher the grit, the finer your finishing will be, but you must also note that grit of 2,000 would not be easy to move across the wood.

How long can you wait to stain after sanding?

After you’ve opened the grain by sanding, the wood more easily absorbs any new finish you apply. The grain stays open for only a short time, however, so you should apply the finish as soon as possible after you’ve finished sanding. For best results, you shouldn’t wait longer than 48 hours.

Is it bad to pressure wash your deck?

A pressure washer is a straightforward machine that can clean very well with only water. However, it can ruin your deck if it’s not used properly. … If you use it with too much jet pressure or place the tip too close to the surface of your deck, you can deeply etch the wood and cause the fibers to splinter.

Can I just power wash my deck before staining?

There is a common misconception that just pressure washing a deck prior to staining is all you need to do in order to prep your deck for stain. Pressure washing can help, but if you want your stain to last, using a good deck cleaner and brightener on the deck prior to pressure washing will provide you the best result.

Can you not sand a deck?

1) You should never sand your deck Sanding creates a smooth surface. Smooth surfaces do not have teeth. surfaces without teeth do not grab onto stain or paint. This is why you should never sand a deck, especially not with orbital sanders (those are the vibrating while rotating sanders you use on doors or furniture).

How much should you sand before staining?

For “hard to stain” woods, finish sanding with 120 grit will usually accommodate the problem. For finish sanding on most furniture hardwoods (e.g., cherry and mahogany) use 180 grit or 220 grit. The use of grits up to 600 is certainly allowed but is not standard practice.

Do you have to sand treated wood before staining?

All wood, except manufactured products like composite wood — even pressure-treated lumber — need to be sanded and stained. If you want it to last, you have to put in the time and some elbow grease.

Will pressure-treated wood turn GREY?

Any wood—even pressure-treated wood—will eventually dry out, crack, and turn gray if left exposed to the elements. To protect your investment and keep your deck looking its best, finish it with a clear water-repellant sealer, a stain, or paint.

How do you make treated lumber look old?

  1. Soak some steel wool in white vinegar for a few hours or a few days – the longer it steeps, the darker the aged effect will be. …
  2. Use 0000 steel wool (shown here) so it breaks down even faster in the vinegar.