In brief: The choice between a carport and a garage depends on your budget, available space and intended use. Carports are often more affordable and quicker to get approved, but provide less protection. Garages are more expensive and usually require a building permit, but protect your car from the weather and theft. Start by planning the size, location and foundation, check permit requirements with your local building department, then decide on the materials and construction method.
Build a Carport or Garage: Plans, Permits & DIY Tips
A dedicated parking space protects your vehicle and creates valuable storage space. Before you start building, you need to make a fundamental decision: an open carport or an enclosed garage. This choice affects your budget, the amount of work involved and how you will use the space later.
We guide you through the most important steps, from initial planning and permits to practical construction advice.
Carport vs. Garage: The Fundamental Decision
Understand the advantages and disadvantages of both options. This is the best way to choose what suits your property and needs.
Advantages and Disadvantages at a Glance
A carport is a covered structure that is open on at least two sides. It protects against rain, snow and direct sunlight. Construction is simpler and often more affordable than building a garage.
Air circulation helps prevent condensation and musty odors. However, a carport does not protect against severe frost, airborne road salt in winter or theft.
A carport is a practical solution if you need weather protection quickly and with a manageable amount of work. Its open design also makes it easy to store garden equipment or bicycles.
A garage is a fully enclosed space. It provides year-round protection, security against break-ins and extra storage for tools or patio furniture. You can heat it or use it as a hobby room.
Building a garage is more complex and expensive, and it is subject to stricter building regulations. In return, a garage can add more value to your property over the long term than a carport.
Pro Tip
Combine the advantages of both: build a carport with wooden or polycarbonate sliding or hinged side panels. This gives you an almost enclosed space when needed while retaining the flexibility and often simpler permit requirements of a carport.
How Do I Plan My Building Project Properly?
Good planning saves time, money and frustration. Start with the essentials: location, size and foundation.
Choose the Best Location and the Right Size
The location should be easy to access. Check that the driveway can accommodate delivery vehicles and ready-mix concrete trucks. Make sure you maintain the required distance from property lines under your state's building code.
Take nearby trees and their root systems into account, too. Consider drainage from the roof and ground surface. Rainwater should be directed somewhere suitable, ideally to a drainage basin or the sewer system.
The size depends on your vehicle. Plan for at least 1 meter of extra width and length beyond the vehicle's dimensions. This gives you room to get in and out comfortably and space for shelving or bicycles.
For a midsize car with some storage space, carport dimensions of 3 x 6 meters are a good guideline. A single garage should have interior dimensions of at least 3.5 x 6 meters.
Important Note
Never build over underground utility lines for electricity, gas, water or telecommunications. Before finalizing the location, request a utility map from your local utility company or network operator. This can help you avoid unpleasant surprises during excavation.
Foundation and Ground: A Stable Base
The foundation supports the entire structure. For lightweight wooden carports, individual concrete footings for each post are often sufficient. Dig the holes, position the posts and fill the holes with concrete.
For solid garages or carports with a heavy roof, you need a continuous strip footing beneath the walls or a complete concrete slab. The foundation must extend below the frost line, about 80 cm into the ground.
Suitable options for the interior floor include water-bound surfaces, paving stones or precast concrete elements. A smooth screed floor is practical in a garage. When planning the slab, allow for a slight slope of about 2% toward the garage door so water can drain away.
Find the right tools and materials for foundation work and transportation in our Transport + Logistics category.
What Permits Do I Need?
Building laws are regulated at the state level. Requirements vary from state to state and often from one municipality to another. Always check your local regulations.
Which Projects Need a Permit?
In many states, small freestanding carports are exempt from permit requirements up to a certain volume—often 30, 40 or 50 cubic meters of enclosed space—provided they meet setback requirements. You may only need to notify the authorities instead of submitting a detailed application.
A garage almost always requires a permit because it is an enclosed structure. You will need a building application that includes structural calculations, floor plans and elevations.
The blanket claim that “carports up to 40 cubic meters are exempt” can be misleading. Stricter rules often apply in water protection areas, historic districts or areas covered by development plans with special requirements. Contacting the building department before drawing your first sketch is essential.
Contact the Building Department: How to Prepare
Make an appointment with your municipality's building department. Bring a rough site plan of your property and explain your project.
Ask specific questions: Is the project exempt from permit requirements? What setbacks must I observe? Is there a development plan with special requirements for the roof shape or choice of materials?
It is best to get the information in writing. This gives you certainty as you continue planning. For garages that require a permit, consider working with an architect or structural engineer.
Additional Advice
Don't forget your neighbors. Even for projects that don't require a permit, talking with them in advance about the planned height and location can help prevent conflicts later. Fair communication helps maintain good neighborly relations.
DIY Tips: From a Kit to Building It Yourself
Want to tackle the project yourself? You can save money, but you’ll need the right skills, time and tools.
Prefabricated Kit or Custom Build?
Prefabricated carport kits, such as our
(Carport Palma 5000), offer major advantages. All parts are precisely cut and pre-drilled, and detailed assembly instructions are included.
A kit saves time on planning and working out the materials you’ll need. With basic DIY skills and a helper, you can finish assembly in one or two weekends. Garage kits are also available, often with a dry construction method using metal stud framing.
A custom build using wood or metal profiles gives you more freedom over the design and dimensions. However, you’ll need a good understanding of structural engineering and timber joints. Sourcing and preparing the materials also takes more time.
Whichever option you choose, you’ll find the right power tools, including cordless screwdrivers, circular saws and spirit levels, in our power tools category.
Practical Tips for the Construction Phase
If you’re using a kit, check all the parts against the packing list before you begin. Store the wood somewhere protected from moisture. Follow the instructions carefully, especially when positioning the first posts.
For the foundation work, use a long spirit level and a string line to make sure everything is straight and square. Small errors at the start can lead to bigger problems later.
Take care when working on the roof. Never work alone on a ladder or roof, and use stable ladders and scaffolding where needed.
For the roof, you can choose robust twin-wall sheets made from polycarbonate or acrylic, as used with
Protecting and Maintaining Your Vehicles and Accessories
Your new parking space can also store bikes and equipment. Plan how you’ll use and organise the space from the start.
Storing Bikes and Garden Tools
A carport or garage is ideal for storing bicycles. Keep them protected from dust and splashes with a dedicated cover, such as our
.
This durable, transparent bicycle cover keeps out dirt while leaving the bike visible. Hooks or wall mounts keep everything tidy and free up floor space.
For garden tools such as lawnmowers, shovels and hoes, use simple wall shelves or a sturdy garden tool cabinet. This keeps everything close at hand and protects the blades.
Making It Last: Maintenance and Care
Recoat a wooden carport with weatherproof stain or wood oil every few years. Check the joints regularly to make sure they’re secure.
On metal structures, check the coating for scratches and treat any damaged areas promptly to prevent rust. Clear leaves and moss from the roof regularly so water can drain away and moisture doesn’t build up.
Check that water drains properly from the ground surface. Clogged drains or gutters can lead to puddles and frost damage. With these simple steps, you can enjoy your investment for years to come.
Find everything you need for cleaning and maintenance in our extensive shop.
Frequently asked questions
- Do I need a building permit for a carport?
- It depends on the size, location and state building regulations. Freestanding carports with up to 30 or 40 cubic meters of enclosed volume are often exempt from permit requirements. However, they must comply with setback requirements for neighboring properties. Always check with your local building authority before starting construction. Violations can result in costly modifications or demolition.
- What type of foundation is best for a carport or garage?
- For lightweight carports, individual footings for the posts are often sufficient. Heavier structures and garages require a continuous strip foundation or a slab foundation. In Germany, foundations below the frost line—typically 80 cm deep—are standard. The right choice depends on the soil, the planned load and whether you may want to add a floor covering, such as a finished concrete floor, later.
- Can I build a garage entirely myself?
- Yes, but it takes solid masonry, concrete and roofing skills. Installing heavy garage doors and handling the electrical wiring are particularly demanding. Many DIYers build the basic structure themselves and hire professionals for specialized work. A kit from a specialist retailer can make the job much easier.
- How much does a carport cost compared with a garage?
- A simple DIY wooden carport starts at around 1,500 to 3,000 euros. A prefabricated carport made of metal or wood costs 2,500 to 6,000 euros. A single-car brick garage can quickly cost 15,000 to 25,000 euros. Costs vary widely depending on the size, materials and how much work you do yourself. Remember to include the foundation, drainage and electrical connection in your budget.
- Which material lasts longer for a carport: wood or metal?
- Wood has a more natural look and is easier to work with, but it needs regular maintenance with stain or oil. Treated structural timber, such as pine or larch, is durable. Metal, usually aluminum or steel, needs less maintenance and often lasts longer, but it can corrode if damaged. Your choice depends on appearance, maintenance needs and budget.
You might also be interested in
- Build a porch overhang yourself: Effective weather protection for your entrance
- Build a garden shed yourself: Create your own retreat
- Build a patio cover yourself: Step by step
- Build a storage shed yourself: Step-by-step guide
- Build a garden shed: Do you need a building permit?
- Build a wooden privacy screen yourself: Instructions and ideas