Labor Cost to Build a Deck Per Square Foot 2021 – Cost Calculator

Labor Cost to Build a Deck Per Square Foot 2021 – Cost Calculator

I. Where to build a deck?

Deck installation is versatile; you can install decks everywhere. Some ideal place such as patio, stairs, or sauna is preferred. However, the kitchen or any other room is also perfect for decking. An outdoor fire pit is another deck installation you can consider.


Many types of flooring are common today; labor costs per square foot deck and material costs are also various. If you want to build a deck, consider reputable and long-standing units. Floor maintenance or waterproofing, or any operation is costly. Building a deck is not a cheap investment, especially with quality wood floors; deck builders expect you to pay pretty high for the deck labor and materials cost. How much does it cost to add a new deck?

Here is some image from Decking Pros, Bellevue, Washington

II. How much does it cost for decking?

1. Labor cost to build a deck per square foot

The average price of building a new deck in the United States can range from $4,000 to $11,000. It depends on where you make it and what material you use. The cost varies from state to state.

As we mentioned, the cost to build a deck is different. Labor cost to build a deck depending on the size of your decks; the average deck might vary from $15 per square foot deck to $35 per square foot for a new deck. Let’s do the math, for a usual house patio, like 14 x 20-foot deck, you could expect to pay around $6,000.

Sometimes, the cost to build your deck me up to $60 per square foot, but the average price is about $20 per square foot. People could expect to pay more for a complex deck such as wood or metal.

In general, any material will have its advantages and disadvantages. Price is always proportional to quality. Laminate flooring is still not comparable to flooring made of natural wood. Balancing the benefits, you’ll probably find the right flooring for your needs.

2. Deck material costs

The cost to install is a real investment. Besides labor to build the deck itself, you also need to consider material costs per square foot. The material of decks will affect other side costs. For example, pressure-treated wood needs more maintenance and waterproofing cost than composite decking or plastic decking. The average cost per square foot depending on your size. So how much does it cost?


a. Composite decking

The average cost to install a composite deck is about $20 per square foot deck, depending on the size, including installation costs. Composite materials are manufactured from two or more different recycled materials to create a new, superior, and more long-lasting material than the original materials.

Composite decking is a polymerized product made of a mix of wood fibers, recycled wood, plastics or recycled plastic, and a small number of bonding agents.

The manufacturer will mix the ingredient, heat them, mold the decks and cool them down. The resulting deck needs less maintenance than pressure-treated wood while looking more realistic than the plastic alternative in the decking market.


Besides its financial benefits, as we mentioned above, the composite deck is more long-lasting than any wood deck.

Because it is made from multiple materials, it is resistant to many other monolithic materials, like mixing concrete, mixed materials so that your deck board’s surface will not be deformed by pressure, weather, or moisture. It is perfect for outdoor deck buildings like hot-tub floors or any fire pit.

This type of deck can also make from recycled materials, so technically, it is eco-friendly. Scrubbing the surface of composite decking doesn’t require any profession. Usual cleaning chemicals can treat stains.

You can see the article The Important Secrets of Pressure Washing and Deck Staining to compare cleaning wood decks and composite decks.

b. Wood decking

The national average cost is about $30 to $60 per square foot deck depending on the type of wood and installation costs; industrial wood costs about $15 per square foot deck. To make wooden floors, people often had to use extravagant wood such as oak and rosewood. Exotic hardwood with a long-lasting lifespan costs more than the average price.

The product is not aesthetically pleasing. People have created natural wood decks from many different types of wood; natural wood deck products are more diverse, more prosperous, products closer to consumers. Also, wood is a completely non-toxic material, and no other material can compare.


However, natural wood floors or pressure-treated wood have a very high cost and much money to maintain. Due to the material’s physical properties, natural wood has physical and mechanical changes when the weather changes, such as warping, expansion, discoloration, and mold.

In the past, we often see wooden doors, wooden walls when the weather changes like rain; they expand and warp, when it’s hot, they shrink to form gaps. But in exchange for the beauty of wooden boards, the price will not matter.

c. Plastic decking

Building a plastic deck is only $10 per square foot; Although a plastic deck cannot compare with industrial or natural decks, a plastic wood deck is considered a modern material. Suitable for most users in all economic circumstances. Plastic flooring can be said to be a relatively new modern material.

Many people still do not have much information about this type of deck. This type of cladding material is not inferior to natural wood floors. The most obvious advantage is that It is affordable; the plastic deck is very durable, flexible, does not crack when subjected to external forces.


The plastic deck is water-resistant, not moldy in wet weather. Although the product line is considered easy to use and not picky, the fake wood plastic liner cannot avoid its inherent disadvantages. Thickness size standards are much thinner than the laminate deck.

Therefore, the bearing capacity is average, cannot withstand heavy objects, and easily sink to the surface. Using plastic boards does not bring that luxuriousness like natural wood floors or composite decks.

III. More cost to add after deck installation

Besides, the average cost to build per square foot of deck needs a lot of slide cost to maintain it. So how much does it cost?

1. Waterproofing cost

Waterproofing is essential, even you choose a high price of deck material and labor. One square foot deck is around $3, which is relatively cheap compared to remodel a whole new deck.

If your deck installation is well waterproofed, the weather will not affect it too much. When it rains, the waterproof layers will prevent rainwater from entering the deck’s structure, so it will not make it rot, moldy, covered with moss.


The materials like pressure-treated wood, synthetic, hollow composite deck; when finished, there are tiny holes in the surface.

When encountering a lot of rain or wet weather, these small holes will cause water to slowly seep into the wall, making the boards easy to crack. A layer of waterproofing sustains protects your deck and increases its stability and strength.


Many people often think waterproofing a new deck costs them more, which is very wasteful. But actually, waterproofing not only protects planks but also helps you save more in the long run. You will have to spend money to paint repeatedly to help cover up stains on the deck or repair cracks; waterproofing helps your decking more impeccable.

2. Maintenance deck cost

Normally, deck maintenance happens annually. You can rebuild it yourself or hire deck builders. You might expect to pay around $8 to $25 per square foot for an average deck; this is only decking material costs. The deck material and labor cost are about $10 per square footage; it is a national average cost throughout the state.

3. Repairing deck cost

Renovating an existing deck is relatively equal to the deck installation cost. It ranges from about $15 per square foot to 30 per square foot.

The cost depending on the size, labor, and deck material. However, the costs can be up to $60 per square foot if you damage your deck too much.


As mentioned above, the quality deck is very durable, but minor damage will occur over time. But these errors can still be repaired and restored to use, not necessarily we have to replace the new one. When the deck’s durability is still there, use it; please don’t throw it away! So when is the best time to repair wooden floors?

a. When the deck makes a noise when moving

When the floor of the story deck, fire pit making noise when you are walking above. The creaking sound when walking causes an unpleasant feeling and affects everyone. The cause may be that the floor is too old or the deck builder has no installation

Everyone knows that deck installation has the outstanding advantages of making your home elevated. The smooth, glossy and smooth wood surface helps the house to have a luxurious, modern, clean and cool style in the summer and warm in the winter.

Whether it’s artificial flooring or exotic hardwood, it’s essentially no effect of high load-bearing. Therefore, the stability of a deck depends on the quality of the underlying surface. The types of stable substrates for wood flooring are concrete, cement, and ceramic tiles.

b. The deck puff up

The condition that the wood surface appears blistering like blisters, causing a loss of beauty in space. The cause of this situation is that there is a process of using abrasive cleaning chemicals to clean the floor. Over time, it allows water to seep inside.


When many people see this situation, they immediately go to replace the wooden floor. However, it can still be restored and used sustainably. Therefore, when you see this situation, do not make a hasty decision. Find a quality furniture repair unit right away; you will see something unexpected.

c. Insects damage the deck

The problem will be pretty complicated, especially with pressure-treated wood. The treatment is not simply replacing the floor due to rot. It must treat the insects in your home to avoid them continuing to destroy the plank and other surfaces of wooden furniture. If the cause is only due to uneven ground, the solution will be more straightforward.


IV. The benefit of installing a deck in your house?

1. Increase the outer look of your home

Adding a deck to your house to bring it to the next level. Deck installation can cost you a lot, so if you want to invest in a more sustainable deck such as wood or composite decking. You can save money by install plastic decking; it is completely fit with the bedroom.


An extra perk of building a deck for your house is the aesthetics that complement your home. Deck installation gives a softer look and harmonious result than cement outdoor areas and looks fashionable. People can choose the various design and material options for the deck and pick something suitable for their household.


2. Versatile

Installing a deck to your property creates an adaptable area suitable for a variety of activities. Deck installing are also ideal for open-air activities on a patio; people can add little details like miniature light bulbs for warm summer Sunday roast or a cover above it when it is rain season.

Once you build in some elegant decking for your house, it is sure to become a fundamental part of your lifestyle. If the materials are high-grade, the deck will maintain its quality and lifespan.


A deck is also a sensible pick for outdoor entertainment like hot tubs, pool, or sauna, as it carries heavyweights above easily without any breakage. Building a deck requires materials that are repellent to severe climate, mildew, and bugs. This means they will be durable without monthly maintenance. Building a deck requires annual maintenance if you want it to be clean.


3. Real-estate value

Decking is a low-priced detail to your sweet home, yet it also increases the estate’s value. Decks are an impressive feature when people decide to buy your property, particularly for a large family, as they add a square foot of deck onto the house and create the image of a pleasant lifestyle.


4. Cheaper installation cost on average

Apart from adding some luxuriousness to your house, remodeling any accommodation costs more than installing a brand new deck. Also, if you seek to enhance your home’s external, consider building a deck; it is much more affordable. However, If you want an upgrade, you can still choose deck materials such as pressure-treated wood.

V. How to stabilize your deck’s appearance


1. Sweep the deck regularly

Regular sweeping is crucial to maintaining the existing deck. It removes debris and layers of dust from travel or in the air. Dirt can settle to the surface, gradually turning into large patches.

By sweeping the floor regularly, you will be removing any crumbs and stains that could potentially be lurking in the bottoms of your shoes without realizing it. Plus, it will keep the deck looking clean and polished.


2. Using soft brushes or vacuums

Vacuuming is an alternative to sweeping and removing dirt much more efficiently than comprehensive. However, not every good vacuuming brush can do an excellent job of brushing. If you use an attachment with a stiff brush or a too stiff brush, it can cause unnecessary wear and damage to the floor. Instead, only use the nozzle for hard-to-reach places or a very soft brush head.


3. Instant stain removal

If a water spill occurs, wipe the water immediately, especially with wood decking. If air-dried, that will take forever, and water will gradually seep into your decking building.

The moisture can cause splintering and damage to the floor. Dry it cloth, mop, vacuum cleaner, dryer. These items are made available in case of an emergency.

4. Use the suitable detergent

When building a deck, you should check the correct cleaning method, products dedicated to cleaning floors. Carefully consult such cleaning products that will help your floor always clean, long-life board.

5. Do not drag heavy objects on the deck

One of the worst things you can do with deck building is dragging heavy objects on the floor. The solution is lifting and carrying those heavy objects. Placing a thick carpet on the bottom of it is also another good option. The damage per square foot depending on the material

6. Don’t let it soak with water for too long

Overflowing or flooding is rare, but it can happen. It would help if you dealt with water spills as soon as possible. With pressure-treated wood, your deck building will properly expand or warping when exposed to water. With composite or plastic, water absorption will be less but will reduce the floor’s life. The cost to install a new deck is pretty high, so please choose the right material for the right installation.


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