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To open the wood grain so it absorbs stain or paint, sand the deck using 20 to 50 grit sandpaper on the first pass and 60 to 80 grit on the second pass on a belt sander or orbital floor sander. Use the same grits to sand railings, posts, and stairs using palm or orbit sanders.
Do you need to sand a deck before staining?
Once dry, these wood fibers can remain raised and may cause splinters. For this reason, light but thoroughly sanding your wood deck is a necessary step before staining or sealing. This crucial step will ensure that your refinishing job gives great results.
Do I need to clean deck after sanding?
It is important, to begin with, a power sander and always finish by hand to reach difficult areas. Remember no more than 60 or 80 grit paper. The next step is to clean the wood thoroughly after the sanding. Deck cleaners, also known as deck wash are used to lift dirt and unsightly mildew which accumulates over time.
What kind of sander should I use on my 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.
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.
Should I power wash my deck before sanding?
Splintered, cracking, or just plain rough wood should be sanded first, then pressure washed to open the wood’s pores and allow penetration of the stain. Deeply grooved wood that has mold, moss and other growing things filling the cracks will need treatment with a deck and siding cleaner.
Can I sand my deck with a floor sander?
Sanding your deck with a floor sander It is possible to use a floor sander to sand your deck, although we still advise you to use a hand-held belt sander for best results. Just make sure to go slow and steady to get an even finish, and make sure all parts of the deck have been sanded down.
How long does it take to sand a deck with a floor sander?
In general, it will take you 8 hours to sand a deck that is 25m2, using a belt sander. But there are a few factors that can affect the time it takes to sand your decking.
When should I sand my deck?
The deck should be sanded after it is stripped and before a coat of stain or paint is applied. A solid stain or paint commonly lasts for five years and a transparent stain for one to two. If water doesn’t bead on the deck, then it is being absorbed. A sure sign it is time to sand and protect it again.
Do I need to remove old stain before restaining a deck?
Removing the old stain before reapplying a new coat isn’t always necessary. If you are applying the same color and brand to the wood, you shouldn’t have to strip the old stain. Using a quality deck cleaner should be all you have to do before reapplying the same stain.
What if it rains after I sand my deck?
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.
Can I sand decking?
Sanding is only practical when your garden decking is smooth, with no grooves. If you have grooved decking, like most people, sanding won’t remove the finish from the grooves. If you want to re-treat your decking with a sealer, you need to remove oil-based finishes with white spirit.
How much does a deck sander cost?
Most homeowners spend between $210 and $350 for a 200-square foot deck, which takes about seven hours to sand. If you choose to sand your deck yourself, you’ll need to purchase an orbital sander, which costs $75 on average.
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.
How much should you sand wood before staining?
Sand the wood twice with a medium grit sandpaper (100 to 120-grit) and twice with a fine grit sandpaper to remove any imperfections and prepare the surface for stain. Clean the wood with a damp rag twice, which serves to both remove any debris and condition the wood.
What happens if you sand stained wood?
Sanding before knocks down the fibers. Making it wet with stain or other finish sometimes makes the fibers stand up again – called raising the grain. Sanding after an early finishing step will knock down this fuzz and make your surface and finish appear smoother than if the grain were left raised.
What grit sandpaper should I use to remove stain?
Stain is notoriously hard to remove from wood. Some types dye its surface, while others carry pigment deep into the pores. The only real solution is to remove the top layer of wood by sanding, and light-duty sandpaper just won’t cut it. The best all-purpose sandpaper for removing stain is 100-grit.
Should I sand or strip my deck?
Sanding is preferable where less penetration is required and the deck is flat, but the process requires additional labor and time to achieve consistent results. A stripper can often be the best option for larger decks, even though the cost will be significantly higher.
Can you sand a pressure treated deck?
Sanding pressure-treated wood is actually contraindicated because, as Sand & Stain warns, you’ll end up partially removing the protective coating created by the pressure treatment, and the wood will look terrible.
