Build a portico – A functional and stylish addition to any home
- Difficultymedium
- Cost83-107 €
- Duration> 1 d
Introduction
Adding a portico to the front of your house will not only help protect you from the elements, but it can also enhance the appearance of your entire home. In this article, we will show you how to build a portico with step-by-step instructions. You will also find numerous helpful tips and all the additional information you need to make this DIY project a complete success.
Let's get started – Build a portico: step-by-step
In this guide, we will show you how to make a portico yourself. Before getting started, see the "Planning & Background Knowledge" for additional tips and information that can help you during the planning and building phase.
Are you familiar with our 18-volt-system? It includes devices for a wide variety of applications. All devices can be powered from the same detachable 18-volt battery repeatedly. Simply disconnect the battery, plug it into another device from the system and continue with the next step.
Pay attention to occupational safety at all steps to protect yourself and your health. You can find more important information in our DIY safety precautions guide.
Draw up the blueprints
Think carefully about what you want your DIY portico to look like, where you want to place it, how far it should extend and how steep the roof slope should be. It is best to draw a detailed blueprint before purchasing any materials.
Lay the foundation & set the posts
First, lay the foundation for the support posts. Screw-on base plates are suitable for this purpose – they are screwed into the ground and will support the two outer wooden posts of the canopy. When you add a portico to a house, the main concern is how it will hold up against the weather. The wooden posts need to be firmly anchored into the ground with sturdy base plates and industrial-strength screws.
Saw the posts to size with the help of a hand-held circular saw and a suitable workbench.
Now, position the posts in the base plates, ensure they are straight with the help of a spirit level or line laser and screw them in place with a cordless drill.
Assemble the beams
For the next step, position two slightly longer beams against the outside of the door and screw them to the wall. Calculate a gradient of approximately 10 degrees. This will enhance the appearance of your wooden canopy and allow rainwater to drain effectively.
Attach crossbeams for the portico
Place the two crossbeams of your portico (parallel to the wall) and screw them to the four posts with angle connectors or long screws to give the structure stability.
Install the support beams for the roof
Next, mount the support beams to the crossbeams with angle connectors. They support the roof. The distance between each beam should be around 50 cm. The bigger you want your canopy to be, the more support beams you will need. For example, for a narrow canopy with an approximate width of 100cm, a total of three support beams should be sufficient – two on the sides and one in the middle.
Attach roof battens (optional)
Optionally, you can now attach roof battens to the support beams (parallel to the crossbeams) for additional stability.
Treat the wood
Your DIY portico needs to be protected from the elements to ensure it continues to function as it should. That is why we highly recommend treating the wood before proceeding. Our guide on staining wood can help you with this step if you are unsure.
Depending on the type of wood, you may need to sand the wood with a multi-sander first before glazing.
Install the roof
Building a portico roof is incredibly straightforward. Once the support beams are in place and the glaze has completely dried, you can finally place your chosen roofing material and screw it into place. Acrylic corrugated roofing or twin-wall sheets, for example, are both suitable materials to use.
Finally, you should seal any gaps between the roof and the wall. More on this in the chapter "Planning & background knowledge".
Install the side panels and rain gutter (optional)
If you want to add extra weather protection, you could now add two side panels between the pillars. A rain gutter is also a sensible addition to allow any rainwater to run off the side and not the front entrance.
That is how to add a portico to your house in only nine steps!
Planning & background knowledge: How to build a portico with columns
In this chapter, we will answer frequently asked questions about porticos and provide useful tips that will help you successfully implement your vision.
What materials are suitable for building a DIY canopy?
If you are wondering how to build a portico entrance, one of the first questions you will be faced with is, what materials should I use?
As a portico does not have to carry a heavy load – unless you live in a very snowy area – you have a wide range of materials to choose from and you could also combine different materials. The table below highlights the advantages and disadvantages of the most common options:
Material | Advantages | Disadvantages |
---|---|---|
Plexiglass | Transparent; covered entrance; shatterproof; inexpensive; resilient | Susceptible to dirt |
Glass | Transparent; covered entrance | Heavy; difficult to process; susceptible to dirt; prone to scratches |
Wood | Easy to process; comparatively inexpensive | Maintenance-intensive; susceptible to weather damage |
Metal / Steel / Stainless Steel | Elegant appearance; high durability | Costly; heavy; special tooling required |
Concrete | Stable; resilient | Additional knowledge required; long drying times; building permit might be needed |
Stone bricks | High durability; complements a stone house | Additional knowledge required; greater effort; building permit might be required |
Sheet metal | Low maintenance; robust; lightweight; waterproof | Susceptible to corrosion; discolouration possible |
Wood plastic composite (WPC) | Wood appearance but with longer durability; assorted colours available; kits available | Not natural wood |
Where are porticos often installed?
Porticos are most often installed for the main entrance, which is why our guide focuses on how to build a portico over the front door. Other places where porticos are usually installed include garages and rear entrances. If you are planning to build your own garden shed, you could also incorporate a DIY portico here.
What if you need to know how to build a small portico above a door? Perhaps for a DIY playhouse for your children? Our guide avoids restricting you to exact dimensions and provides a general overview so that you can adapt the plans to any portico size, whether big or small.
What are the different types of porticos?
Not all canopies are the same and there are many distinctive styles to choose from. We have compiled some of the most popular types for you here.
Style | Characteristics |
---|---|
Louvres | Elegant, lets light in, combination of different materials possible |
Portico with columns | Many styles possible, from Greek to Victorian |
Cantilever portico | Space-saving; modern; self-build and assembly are more complicated |
Contemporary style | Combination of different materials and functions (e.g. climbing aids for plants); ideal for visually highlighting entrances |
Extended canopies | An extension of the roof with wooden roof tiles; supported or free-floating |
Portico with side panels | Wind and weather protection; extra privacy; additional stability |
L-shaped portico or similar | Particularly attractive as a partially self-supporting outdoor canopy with side wall; materials can be combined; privacy and wind protection provided |
When should I use a premade kit and when does it make sense to build a portico yourself?
The answer to this question comes down to your manual skills and how much time you have available. A kit is a quick and comparatively cheap solution, however, when you build a DIY portico you have much greater freedom to choose the design. You can decide on the materials, size, appearance and all the smaller details. A complete kit from the store might be a more straightforward solution but it will lack that personal touch.
How do I make sure that my portico is secure?
Our guide shows you how to build a portico on a brick house and the steps you need to take so that it can withstand rain, wind and snow, as well as provide sufficient drainage. Pay particular attention to the connections and joints, particularly the roof and wall connection, and ensure there are no gaps or structural weaknesses.
To seal your roof, you can use sealing tape, rubber seals, expanding tape or silicone, among other solutions.
Do I need a building permit if I want to build a portico myself?
In most cases, you do not need any special permission to install a DIY portico. However, if your house entrance is directly on the street or a sidewalk, or if your project is particularly large, a building permit may be required. This depends on the local regulations that apply in your place of residence. Check with the relevant building authority or municipality well in advance of starting your project.
How can I avoid thermal bridges when drilling into the wall of my house?
If you want to build and install a portico, proper installation when mounting it to the wall is essential. Otherwise, damage to the thermal insulation can occur, which in turn can result in thermal bridges, also known as cold bridges. You should seek the advice of an expert if you are in any doubt. Under certain circumstances, separate sealing measures may be necessary.
How do I calculate how heavy the roof will be and whether the fastening can hold it?
If you want to know how to add a larger portico to a house, then you will first need to consider whether the materials you have chosen can hold the total weight. In addition to weight, you should also consider the impact wind and snow might have on the anchoring and overall structure.
The basic weights of your different materials can typically be found online for simple construction projects, but as soon as the project becomes more complex, it is advisable to consult a structural engineer. They will be able to give you a more definitive answer regarding the viability of your project.
Does my portico need a rain gutter?
Without a rain gutter, a DIY portico might not fully perform its primary purpose. Rainwater is likely to run down the sloped roof and directly over the entrance. A gutter that runs down one side or column can prevent this issue.
What incline angle should a canopy have?
A canopy with an incline of approximately 10° guarantees good water drainage while also looking aesthetically pleasing. Even for smaller projects - for example, a garden shed canopy - you should plan for an incline of at least 5°.
Cost: Building a portico
The cost of a portico depends on the specifics of your particular project. For example, if you are planning a small wooden canopy for the front door, the costs will be much lower than if you want to build a larger portico with supports over the entire terrace or if you want to create a large canopy with side walls, windows and doors.
Of course, it also makes a considerable difference whether you build your portico yourself or have a tradesperson do the work. As a guide for cost planning, we show you some general prices here:
Design | Build your own canopy | Built by a tradesperson |
---|---|---|
Wooden portico | From £70 | From £250 |
Classic mono pitch portico made of aluminium or glass | £70–150 | £150–300 |
Simple canopy made of stainless steel or glass | £150–300 | £300–450 |
Rectangular canopy made of stainless steel or aluminium | £300–450 | £400–900 |
Please keep in mind that all prices mentioned above are only estimates. You can only make an exact calculation once you know the total size and features of the construction. Ideally, you should then check the current material costs at the hardware store.
Even more DIY ideas for around the house
Is your portico up and running? Perfect! Now you have plenty of time to devote to your next DIY project. How about building your own bin shed or installing a new wooden fence in the garden?