Composite Deck Stairs – How to Install Deck DIY

Composite Deck Stairs – How to Install Deck DIY

I. Three common types of composite deck stairs

Composite deck stairs require a professional decking service if you are a customer seeking a decent decking company, soDecking Pros NW from Bellevue, Washington, is a great choice. They have a long-term profession in this field; they can cover stair tread and patio decking, stair maintenance, or waterproofing service.



1. Floating stairs

Floating stairs style is a popular deck tread in modern households. It is an inspiration from herringbone, with the supporting column is in the middle of the stair or not.


In houses with a modest area, floating deck tread systems are a reasonable solution to help ensure functionality and make the home airy and beautiful. This deck stairs model often combines lumber, glass, and metal material to give homeowners various designs. The treads system attaches to the wall or on the post; the support mainly comes from the wall or the single position they are attached to.

This treads model is usually installed close to the wall. By taking advantage of excess space, this staircase design will save maximum space for homeowners. It looks exquisite, make it a true highlight for your sweet home.


The construction of floating stairs does not cover the facade, so the stairs help homeowners not obscure the view, giving the house more airflow. This stairs model also helps homeowners save material money, but the house’s value is still enhanced.

a. Advantages of floating stairs


The most significant advantage of the floating deck stair tread is the unique and fancy staircase shape. In addition, this staircase is quite elegant, does not take up much place in the house. You can build the deck stairs in any position.

The cleaning and cleaning of deck stairs are also more straightforward than traditional stairs. The open staircase helps the place to be airier. Stairs are durable.

Floating stairs can be installed in any position, even in small spaces.

b. Disadvantage of floating stairs


The most significant disadvantage of floating stairs is the long installation time because the bearing has to be erected before installing the steps, railing, and handrail. The stair tread will stand on the post or attach to the wall, so it lacks support. Although the installation steps are simple, you don’t need too much material; they require very high precision. Therefore, floating stairs are easily shaken if the service you choose has poor skills.

2. L-shaped stairs


The 90-degree L-shaped staircase is a type of staircase with a sturdy but straightforward style, with a bend angle between floors. You can use the area at the bottom of the composite decking tread to decorate or store things. L-shaped deck stairs are suitable for townhouses with a moderate zone. L-shaped stairs are also known as 90 degrees turning stairs.

L-shaped stairs are trendy today because they both bring convenience to users and have a unique and different aesthetic. The L-shaped staircase also creates a charming highlight, exalting the beauty of the interior area for the owner.


a. Advantages:

Suitable for all house design styles: Simple, sophisticated design is the perfect choice for any place.

It brings High aesthetics: Able to create a different aesthetic for the house. Homeowners can take advantage of the space at the foot of the deck stairs to decorate TV shelves, bookshelves, miniatures, wine cabinets … or storage.

Easy to clean: Simple design makes cleaning easy, saving maximum time and effort for homemakers.

In feng shui, the L-shaped design of the composite decking tread is very open, so it can be considered a “fortune” path for the house and everyone in the family.


b. Disadvantages:

L-shaped handrail requires the installer to have a clear construction plan and have many good professional skills.

When building under the decking tread for L-shaped stairs, you will have more difficulty moving heavy objects in and out of the deck stairs.


3. Spiral Stairs


This type of design is a form with steps from bottom to top rotating around a cylinder with a vertical method. When we look from above, we will see that it looks like a spiral.

These spiral designs are unique often applied to tiny houses aiming to optimize space for the home. Large houses now also use this style with luxurious beauty, creating a spacious and lighthouse room.


a. Advantages of spiral stairs

One of the most significant advantages of a spiral staircase saves space, providing a larger area. They take up less place than traditional deck stairs. If your room is narrow, the spiral staircase is a great choice.


In addition, you can buy a set of spiral staircases that fit the joint area. They are easier to assemble than ordinary staircases. They are also usually cheaper. If you need to maximize the reservation, consider installing a spiral staircase.


It has a variety of decorations, vary from size to material. You can also customize a perfect staircase for your home design. But, wood always brings the best look and lifespan to your stair.

Spiral staircases have a solid aesthetic appeal if placed in the right place, adds worth to your home.

b. Disadvantage of spiral stairs

The fact that spiral wood stairs take up so little area is also their biggest drawback. The reason is that they will be steeper than the regular staircase. This makes it unfriendly to the elderly and children.


In addition, it is more challenging to meet the safety standards of the spiral form. Therefore, if you use this type of staircase, make sure everybody is comfortable before installing it.

Moreover, for an elegant look, you need a high-quality treads system of the correct size. If you use one that is too big, it will cause eyestrain. The small one will get entangled when walking, so prepare a quality design and measure for your

II. Type of composite decking

Composite wood is synthetic material formed by mixing wood pulp, plastic, and additives such as colorants, toughness enhancers, enhancers. hard, flame retardant, UV resistant. A large capacity extruder then extrudes the mixture. Due to the ingredient-mixing section in the manufacturing process, this type of wood has both the properties of wood, which can be processed into various boards. At the same time, composite wood has the characteristics of plastic: waterproofing, rot-preventing with a blend of wood pulp, resin, and additives, creating a solid point for plastic wood is its ability to resist warping, minimize cracking and cracking in a much longer time. Compared with natural hardwood, composite wood does not catch fire, so it has high fire resistance.

1. Capped composite decking

Capped composite boards are long-lasting boards because it has the outer layers to protect it from the environment. Besides, it has more aesthetic and wood-looking than uncapped boards.


2. Uncapped composite decking

Uncapped boards are affordable; it needs minor component than capped boards. However, it has a shorter lifespan due to a lack of protection from the outside.

Unlike the other types, uncapped composite decking doesn’t have the outer layer to prevent damage, exposing the boards to the environment.


3. Hollow composite board

Hollow boards provide a lighter material for an installation due to the honeycomb texture in the middle. If your project requires a lack of constructed workers, open boards are perfect.

Hollow composite boards can trap moisture because they are open, and the water inside is difficult to remove. This can, over time, start to damage the panels. Another significant disadvantage of hollow flooring is that it resembles natural wood less than its solid counterparts. This is because it usually contains more uniform particles.

In many cases, open boards are also cheaper than solid boards. However, it might be a false choice for treads installation because it cannot handle heavyweight.

4. Solid composite board

The main advantage of solid composite flooring is its strength. This is because it has no prominent honeycomb centers in the hollow planks, virtually eliminating any bending.

Due to its durability, this is a perfect material for staircase constructions.

III. The guide on installing deck stair

1. The stairs construction process

blogThe stair surface needs to be treated first; here are a few different ways to build the deck steps for your reference.

Using nails to build the composite decking tread is the traditional way. Still, it has the Disadvantage of losing the aesthetics because the nail marks on the wooden surface are easily exposed.

Using 2-head screws ensures the deck staircase’s surface’s firmness and provides a more optimal aesthetic.


Build the deck stairs using fish bamboo shoot pins, but its disadvantage is that it is not durable when used; for a long time, those bones may stretch and leave a squeak when you walk on the deck stairs step. So consider these three ways to install these wood staircases before proceeding to the next stage.


2. Install the neck of the deck stairs

Step neck is the place of contact between the neck of the concrete surface and the neck of the deck staircase; the concrete surface will be spread with a layer of wood glue, then put the rigid step neck on the concrete surface. , use a hammer or something wooden to the surface so that the two parts of the neck stick together. Finally, use nails or screws to fix their four corners.


3. Install the lathe.

The lathe is a step that helps the decking treads installation process to be more solid. Build the lathe as follows: drill holes in the surface to create spiral holes. The spacing of holes and turnings will vary, depending on the type of stair construction. Usually, the most common distance is about 6 – 7.8 inches, then use 2-headed screws to combine the lathe and ladder, glue them again, and you’re done.


4. Stair handrail

After completing step 3, the next step is to build handrails for the deck stairs.


5. Install the skirting wood.

First, you take a saw to cut the step surface and then put the wall brace in; the size of the mount is as follows: about 0.5 inches thick and about 3.5cm wide (this size can vary depending on different projects), after use screws to fix it.


IV. Some notes before building your composite deck stair tread system

1. Safety first

The first rule in the wood stair design to ensure safety for users is that the height of the composite stair and width must comply with the design standards. According to the standards applied to Vietnamese houses, the average width of the composite decking treads is usually arranged from 30 – 47 inches, and the height of the whole staircase is 6-7.5 inches. For the decking tread, the average diameter of a step is 8.5-10.5 inches.

For high-class buildings or villas, the width of the stair can be from 60 inches or more. With that standard size, the composite decking treads will not be steep and narrow; people will stroll without losing strength. The rail size is calculated from the center of the vertical face to the top of the rail; the standard size is about 35.5 inches.


As the name implies, the landing mat is a temporary resting place while walking up the composite staircase. In architectural design, the diameter of the landing should not be less than the width of the ladder body, and at the same time, it must be reasonable and convenient for travel.

The landing mat is usually arranged in the middle of the number of steps, i.e., the 13th to 15th step. This space gives people a sense of comfort and is also in line with the entire design standards of the composite stair.

2. The handrail

Stair design standards cannot ignore the height of the handrail. Usually, handrails should not be lower than 35 inches. In stairs for houses with children, handrails must be high and avoid leaving a large gap between the vertical bars of the handrail. Note that the gap between the two vertical bars should not exceed 5.5 inches. Hyperactive children are easy to slip through the standing posts if not careful. But if you don’t want to have a dense railing, you can still open up and add horizontal bars along the stairs at the 1/3 position from the bottom. This rail almost acts as a separate handrail for young children.

3. Suitable place for deck stairs installation

The stair is an exciting element of Chinese feng shui researchers. Composite decking treads act as the body’s backbone, directing the airflow through the decking tread from the first floor to the floors and rooms, bringing fresh air to the whole upper part of the house.


Composite decking tread is created to be a strong, stable, and graceful posture. Because the composite staircase ensures vertical traffic, the ladder’s position must be arranged to provide and contact the functional spaces from the base ladder to connect with the floors.


4. How to clean it?

Completely different from the traditional door lines mentioned above, plastic wood doors have a core made of a single material, composite wood. The differential structure of PVC particles covering the wood grain makes the composite material water-resistant. Parts of the door set such as molds, wings, and braces are all molded monolithically; the surface covered with wood grain PVC film also has a water-resistant function. The wooden plastic door set is immune to all impacts from water and moisture in the environment, does not change size after many years of use.

Therefore, homeowners confidently clean plastic wood plastic doors directly with water without worrying about any problems. The surface of PVC film is also very resistant to cleaning chemicals. You can clean it with regular cleaning agents and let it air dry.

5. Maximize spacing

It would help if you asked an architect to design compact deck stairs in corners or spirals to maximize floor for tiny houses. To save area, you could use the entire gap under the composite decking treads can also be used to store shelves, bookshelves, etc., to maximize space.


Most families use under the decking treads as a toilet, a storage place, a bookshelf, a TV shelf, etc., to make the most of this often considered dead place. However, a little creativity can make it become a highlight with your guests or estate customer. A beautiful small garden with white gravel combined with small bowls of flowers will make the area under the decking tread of your home more lively.


You can arrange flower bowls or small potted plants with the same decoration as this beautiful little garden.


To reach Decking Pros NW for detailed information about the product below is some more information fo


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Phone: (206) 279-1450



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