Can you treat any wood for outdoor use?

Asked By: Qiaoyun Bauschmid | Last Updated: 10th March, 2020
Category: hobbies and interests woodworking
4/5 (32 Views . 35 Votes)
Even though natural weather-resistant wood is the best choice for outdoor exposure, at some point it becomes vulnerable to decay. The only way to properly use untreated wood of any type outside is with the addition of water-repellent preservatives, sealer or paint that contain UV protection.

Click to see full answer


Consequently, what wood is best for outdoor use?

9 Wood Species Best for Outdoor Projects

  • Acacia. Acacia is a thick, strong hardwood with high oil content.
  • Black Locust. Black Locust is one of the strongest and stiffest domestic woods.
  • Cedar. Cedar is soft, light, and easy to work with.
  • Cypress. Cypress wood is rot and insect resistant attributable to its natural oils.
  • Douglas-Fir.
  • Ipe.
  • Redwood.
  • Teak.

Subsequently, question is, how long does wood last outside? Some say that untreated 2×4's can last up to two years before showing signs of rot and others say it can last even longer. When deciding if you should you use an untreated 2×4 it depends greatly on the application, how much weather and sun it's exposed to and if it's making ground contact.

In this way, how do you weatherproof wood outside?

There are three surefire ways to waterproof your wood for years to come.

  1. Use linseed or Tung oil to create a beautiful and protective hand-rubbed finish.
  2. Seal the wood with coating of polyurethane, varnish, or lacquer.
  3. Finish and waterproof wood simultaneously with a stain-sealant combo.

How long will untreated pine last outside?

Untreated redwood, depending on it's age, has a projected life span of 50 years or more when exposed to the elements. Pine varieties have a projected life span of only 5 to 10 years.

26 Related Question Answers Found

What is the most rot resistant wood?

Naturally resistant woods that are commercially available include black locust (Robinia pseudoacacia), teak (Tectona grandis), ipe (Tabebuia spp.), California redwood (Sequoia sempervirens) and bald cypress (Taxodium distichum). These have the highest resistance to rot over time.

What wood is waterproof?

Water-resistant Woods
Hardwoods in general have better water resiliency than softer woods like pine because the fibers are tightly packed together, resulting in less absorption, which does not mean all hardwoods are waterproof. Maple, oak and birch flooring expands and contracts due to moisture in the air.

Is Pine Wood waterproof?

How to Waterproof Pine. Any kind of structure made of pine, including furniture, enclosures, boxes or storage areas, need to be waterproofed so that the wood will not be damaged in case of rains or flooding. Water damage will ruin a piece of furniture because the wood will rot, become soft and decay.

Can I use pine wood for outdoor?

Truth is, not all woods will hold up well outdoors. Woods like pine can work in protected areas, but they'll begin to rot fairly quickly when fully exposed and may only last a few years. Pressure-treated pine lasts much longer thanks to chemical preservatives, making it great for decks, fences, and other structures.

What kind of wood do you use for exterior trim?

A common trim board is pressure-treated southern yellow pine. It is inexpensive and widely available, but it tends to warp when it absorbs moisture. Unlike cedar and redwood, southern yellow pine is less stable and wood-eating insects consider it delicious food.

What can you put on wood to protect it outside?

For a natural-wood look, apply multiple coats of exterior spar varnish that contains added UV blockers. Spar varnish produces a built-up finish that provides more protection than oil. Avoid deck stains or penetrating finishes that don't offer enough protection for untreated wood outdoors.

What is the best outdoor wood preservative?

The Top 6 Best Outdoor Wood Sealers for 2020 are:
  • Minwax Helmsman Spar Urethane.
  • Thompson's WaterSeal Natural Wood Protector.
  • Star Brite Golden Teak Oil Sealer.
  • Ready Seal Exterior Wood Stain and Sealer.
  • SaverSystems Wood Stain.
  • Tall Earth Eco-Safe Wood Treatment.

Does polyurethane make wood waterproof?

No, polyurethane does not make hardwood waterproof, but it does make wood water resistant. Polyurethane gives hardwood its protection. It repels water and prevents water absorption, but it never fully blocks it so it will never make it 100% waterproof. Polyurethane also protects wood for scratches and discoloration.

Can you waterproof wood?


To waterproof wood, start by sanding it with fine grit sandpaper to remove any imperfections and prep the surface. Then, use a rag to apply an even coat of linseed oil, walnut oil, or tung oil to the wood and let it cure for 24 hours. When you're finished, let the wood cure for several days before using it.

Is exterior paint waterproof?

Professional Grade Waterproof and Elastomeric Paints
Including Waterproofing Grade paints, Elastomeric paints, Mold and Mildew Resistant Paints and High UV resistant Paints. All provide beautiful exterior paint colors and long term weathering resistance on masonry, concrete, EIFS and similar surfaces.

Can you put a wood table outside?

Outdoor living spaces don't have to filled with boring, ordinary patio furniture. Almost any furniture can be used outside, provided it is protected from the elements. A covered patio or porch, safe from the harshest weather conditions, is a great place to arrange a stylish sitting area.

How do you waterproof painted wood outdoors?

Video of the Day
  1. Rinse with clear water using a garden hose. Allow the surface to dry for two to three hours.
  2. Apply an even layer of silicone-based or polyurethane wood sealant using a paint sprayer. These products are available at all home improvement centers. Give the sealant product 24 hours to completely dry.

How do you seal pine wood for outdoor use?

Apply a coat of polyurethane over the sealant.
Let the sealant dry for 24 hours, then dip a paintbrush in undiluted polyurethane. Brush the polyurethane over the object in long, thin strokes, catching any drips with your brush as you coat the surface.

What is the best preservative for wood?


Best Wood Preserver
  • Cuprinol Ducksback 5 Year Waterproof for Sheds and Fences, 5 L – Forest Oak.
  • Cuprinol 5L Wood Preserver – Clear.
  • Everbuild EVBLJCR05 Wood Preserver Clear 5 Litre.
  • Everbuild LJUN05 5Ltr Lumberjack Triple Action Wood Treatment, Red.
  • Ronseal RSLWPCL5L 5 Litre Total Wood Preserver – Clear.

What is the best oil for exterior wood?

Best Oils For Wood in February, 2020
Oil
1 SUNNYSIDE Editor's Choice Check Price
2 Watco Danish Check Price
3 Watco Teak Check Price
4 Osmo - Polyx Check Price

How do you seal weathered wood?

How to Seal Old Wood
  1. Clean the surface with a stiff nylon scrub brush to remove any dust and debris that might get trapped in the sealant causing an uneven finish.
  2. Apply a coat of linseed oil.
  3. Top the linseed oil with paraffin wax, available in the paint department of home improvement centers .