Knowledge Builders

how long should a wooden deck last

by Dr. Winona Kassulke Published 2 years ago Updated 2 years ago
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THE AVERAGE LIFESPAN OF A WOOD DECK: Typically 10 to 15 years. The actual lifespan of your wood deck will depend on the type of wood you've chosen and how well you keep up with wood's rigorous maintenance schedule.Sep 8, 2021

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How long will a treated wood deck last?

Written by Ryan Nickel in Pressure Treated Wood Many factors go into the longevity of pressure-treated wood, but pressure-treated wood typically lasts anywhere from 10 years to upwards of 40 years. If you’re building a new outdoor deck for your home, you’re wisely weighing your options by asking yourself, “how long does pressure-treated wood last?”

How long will my wood or composite deck last?

Traditional wood deck: Typically 10 to 15 years. Capped composite: Industry experts agree these boards can last 25 to 30+ years. Capped polymer (the best of the best): Because of its superior material composition, capped polymer boards can last much longer, potentially 50 years or more.

How long does IPE decking really last?

Mostly ipe is used for decking and other outdoor applications lie siding, furniture as well as fencing. When maintained well, it can last up to 75 years and 40 years in almost all applications. This is four to seven times longer than pressure-treated wood.

How long can I wait to stain new deck?

There are many questions as to when a newly installed deck should be stained. Some stain manufacturers suggest you should wait 3-12 months to let the wood dry while others say to stain the deck right away. The answer can be both just as long as you prep the new wood properly for an application of the stain.

How long does a deck last?

Why doesn't my deck last?

Why does my deck dry out after rain?

What is a wood deck made of?

What is the best wood for a deck?

Why are decks so popular?

Why pressure treat wood?

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How often should you replace a wood deck?

A typical wood deck can last anywhere from 15 to 40 years. This will depend on the materials used and the quality of routine maintenance performed. However, if your deck is showing signs of age and is over 20 years old, you should begin considering a deck replacement.

How long will an untreated deck last?

10 to 30 yearsA deck made of untreated wood can last anywhere from 10 to 30 years. Decks made of treated wood and composite materials can last as long as 50 years.

How do I know if my wood deck is still good?

Here are some things that may indicate it's time to repair or replace your deck:Rotted wood. If you notice a soft spot on your deck, that's a good indicator the wood beneath has rotted. ... Loose floorboards. It's common for floorboards to crack due to weather. ... Wobbly railings. ... Deteriorated posts. ... Insect damage.

When should I replace my deck?

5 Signs That its Time to Replace or Repair Your DeckObvious damage to the wood. Wood can become damaged from the elements, from insects, and from use over the years. ... Rot in the wood. ... Rusted fixtures and fittings. ... Loose railings. ... Molds and mildews.

Should a wood deck be sealed?

A backyard deck can be the perfect platform for good times, but a wooden surface needs a proper sealant to protect it against the ravages of sun, rain, and temperature fluctuations.

What is the longest lasting deck material?

Aluminum and Steel Aluminum decking is the most expensive out of the deck material and will last the longest with a lifespan of 30+ years. Steel decking can have a lifespan of 60+ years when correctly installed by a professional builder.

Why do my deck boards keep rotting?

Moisture and pooling water on decks can lead to rot and decay. Because dry rot is a fungus, it can spread like a cancer throughout a deck. Dry rot is caused by microorganisms that eat the cellulose from the wood leaving it brittle.

How do I keep my wood deck from rotting?

Boric acid (borate) is one of the most effective fungicides for use in treating wood rot. It can be applied to wood during construction to prevent future rot, or as a treatment to stop an active decay fungus from growing.

What do bad deck boards look like?

Peeling and Flaking Paint. Wood Looks Dry and Old. Splintering Boards. Rotting (Mold & Mildew) Visible On Planks or the Deck Frame.

Is it cheaper to repair or replace a deck?

Fortunately, repairing a deck is much cheaper, but there are still ways to save on deck repair cost. Consider whether it's a simple task you can do on your own such as cleaning and staining or adding nails.

How do you tell if a deck is rotted?

You can also tell if the wood is rotten by checking for these likely problem areas: Anywhere wood contacts the ground. Long sheets of grayish mold or darker-looking wood. Pest damage, those spots could be a combination of insect damage and dry rot since dry rot attracts termites and other wood-eating pests.

Is it worth to repair a deck?

When Should I Repair or Replace My Deck? When the cost of repairs starts to get close to the cost of replacing the entire deck, you should consider replacing the whole thing. Even decking materials that are structurally sound are still old, and you may have to replace them anyway in just a few years.

Will untreated wood last outside?

Untreated Wood Left in their natural, unfinished state, most woods deteriorate quickly when exposed to outdoor environments. However, there are several species that have naturally occurring chemicals that help them shrug off harsh weather and insects.

Can I use untreated wood for deck?

You can build a deck using untreated wood, but ensure you seal the wood with stain-sealant combos or coat it with exterior grade paint to make it resilient to the harsh weather elements outside.

How long does it take for a wood deck to rot?

Nothing threatens your beautiful wooden deck more than moisture and rot. While the average life spans about 20 years, depending on the construction, materials, weather, and other environmental factors, you may need to replace your deck sooner if exposed wood begins to rot.

How do you make untreated wood last outside?

The best way to treat untreated wood for outdoor use is to apply a wood sealer. Thompson's Waterseal is a great choice for large areas like wooden decks and fences, while spar urethane is perfect for outdoor furniture, exterior doors, and various outdoor projects.

Why do you need a wood deck in your yard?

Installing a wood deck in your yard can help you create more space, it will make your home look better, and ultimately it will increase the value of your home. These decks are said to be extremely practical, easy to install, you have a lot of options to choose from, and you can even show off your style by choosing something new and unique.

How long do untreated boards last?

If you choose to go with the traditional untreated boards, you should know that they will serve you between one and three decades. On the same note, the same boards, if they are treated with the right coats, layers, and products, should last at least five decades.

What happens if you don't secure deck boards?

If you see that the boards seem loose, and if they are not properly secured, you will either need to find a way to secure them in place, or you will need to just get a new patio. One of the biggest issues that could occur with these decks is rotting. If the unit is not properly maintained, it may begin to rot, and you will need to act as soon as possible. Rotten wood can lead to serious injuries and diseases, so you should always pay attention to it. Know that even if you suspect some of these things, and if you are unsure, you can always get it checked by a professional service, and they will tell you if you need to do anything about it.

How long do composite units last?

The composite units usually have a lifespan of at least 25 years, and it can be prolonged up to four or even five decades with the proper maintenance.

How long is a warranty on a board?

Depending on the company you choose, you should usually get at least one or two decades’ worth of warranty, and some places will even offer you a lifetime guarantee that nothing will happen to the boards you purchased from them.

How long do you have to replace a septic system?

All things considered, experts suggest that you won’t need to replace this unit for at least 15 years, with a maximum of 40 and maybe even 50. Make sure you choose a good contractor so that you increase your chances of using the unit for a long time. Do all the proper maintenance, and if you need help, you can always rely on professionals.

What is the rule of thumb for wood?

The rule of the thumb is that the better the wood is, the longer the unit is going to stand. Note that even if you get the boards made from the most expensive trees, if you don’t do the proper maintenance, it will all be in vain.

When Should I Replace My Wooden Deck?

With proper care and maintenance, you can enjoy long and reliable service from your wooden deck. But it will not last forever. At some point, you will have to replace the deck, either because of a tired, weathered look or weakening structural strength.

What Is The Best Wood for Decking?

But for its suitability as a decking material, the type of wood you choose has to pass the durability test. Unless pressure-treated, softwoods are prone to rot and sun bleaching that you will not enjoy your deck for long before it falls apart.

How long does a deck last?

How long does decking last? There is no single answer — as the average lifespan of a wood deck is different from that of a composite deck — and it all comes down to material durability and maintenance .

How Often Should Wood Decks Be Replaced?

Wood deck boards are typically the first to need replacement. However, oftentimes, when replacing the deck boards, issues with the substructure also become apparent, so it’s recommended to replace both the substructure and surface together.

What is TimberTech decking?

What: TimberTech PRO ® and TimberTech EDGE ® capped composite decking feature advanced capping technology made with fully engineered polymers that lock out moisture and UV rays — while locking in rich color.

What is the most common deck material?

Traditional wood has historically been the most common deck material, but innovative engineered decking is becoming more popular thanks to its superior material composition and minimal maintenance needs .

Why do you need an annual deck inspection?

An annual deck inspection allows you to catch problems early when they are still reparable. Combine an inspection with your maintenance schedule to consistently keep tabs on deck health.

How long do composite boards last?

Capped composite: Industry experts agree these boards can last 25 to 30+ years.

What is board made of?

Boards comprised of a mix of organic and non-organic material

How long should a deck frame last?

— then the frame should last decades — or longer.

Which decking is the longest lasting?

Deck Floors: PT. One of the oldest decking options remains one of the longest lasting: PT. It has a written lifetime warranty and comes in Premium – a grade better than #1. PT decking is also the least expensive. It does misbehave somewhat — split, cup, and splinter in places.

How to tell if a deck frame is properly constructed?

If you are unsure, have a professional deck builder inspect your deck. Don’t fasten new decking and new rails to a weak or shaky frame.

What is the primary killer of wood decks?

As we’ve seen, rot is the primary killer of wood decks. What’s going on? Rot fungus invades wood and attacks its structure until the wood just falls apart.

How much does it cost to build a deck?

Perhaps you are considering building a new deck. It will cost $15,000 or $25,000 or more (Read more about cost in Remodeling magazine’s Cost vs Value article), and you wonder about the longevity of such an investment. You’ve read that the decking companies warranty their new synthetic decking for 25 years or even for life. But will a deck really last that long?

How big was the oak tree trunk?

The trunk of the oak tree was 16” in diameter and hit with major force. But because the deck was well constructed, damage was limited to parts of the side rail, some decking, a joist, and one brace.

Is cedar siding good for a house?

Cedar has a great reputation for longevity. Indeed, cedar is very popular as house siding. The cedar siding shingles on my house lasted over 60 years, until I tired of re-painting. But don’t be misled, house siding is a vertical surface. It drains easily and lives high enough to enjoy the breezes. Your deck is flat, so rainwater sits around and soaks into the wood. And cedar has changed. Cedar earned its great reputation in the last century and earlier, when it available as old growth heartwood from the dense center of those magnificent giants.

How long does a deck last?

If you take excellent care of your deck, giving it all of the maintenance it needs, it can last for 20+ years. That said, the exact amount of time a deck will last depends on the type of wood type and a variety of other factors.

Why doesn't my deck last?

The fact is that your deck won’t have a roof over it to protect it from the elements, so it’s eventually going to need to be replaced.

Why does my deck dry out after rain?

If your deck sits under too much shade, it’s probably going to take a lot longer to dry out after rain. And if it gets hit by the scorching sun all day long, it’s going to fry the sealer and boards over time.

What is a wood deck made of?

Wooden Decks Made From Mahogany. Mahogany is a beautifully colored hardwood, which means it resists those scratches that you have to worry about when it comes to cedar. They’re not as high maintenance, but they are natural woods which means they will still decay over time.

What is the best wood for a deck?

Wooden Decks Made From Cedar . Cedar is the workhorse of woods. It makes the perfect material for fences and decks because it’s less likely to retain moisture than many of the other woods that are commonly used for decks. This means that it’s less likely to rot.

Why are decks so popular?

This is because wood is simple to find, relatively inexpensive, and it creates a warm and inviting atmosphere in any backyard. However, wood comes with its fair share of issues as well. Wood, no matter how well you treat it, is susceptible to warping and rotting.

Why pressure treat wood?

This helps to limit rot and increase the wood’s resistance to insects.

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