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Building an Affordable Prefabricated Sandwich Panel Garage

Many times we have a limited budget for building a house, and the garage is one of those areas where savings are prioritized. For these cases, we have the ideal solution: a prefabricated garage made of sandwich panels both for the facade and the roof. With just a simple structure and a few panels, we have a space that can be placed anywhere on the property. Additionally, we ensure that the interior is protected from external elements and remains in the best condition for decades.

Materials to Use for Building the Prefabricated Sandwich Panel Garage

There are many types of Sandwich Panels that we can use to build the prefabricated garage, but to obtain the best and most economical result, the ones that suit us best are: BOX-type Facade Panel with visible screws, Cover-joints Sandwich Panel, and Sandwich Panel Three Frets.

Sandwich Panel Three Frets for Affordable RoofCovers-joints Sandwich Panel for Accessible Roof

BOX Facade Panel for the Walls of the Prefabricated Garage

Starting with the type of Sandwich Panel we should use for the facades, we recommend the BOX-type Facade Panel. This panel is widely used in many projects, from industrial buildings to residential environments. The composition of this panel offers excellent performance in all types of environments, ensures watertightness against leaks and humidity, and has simple maintenance and cleaning.

There are several thicknesses available to suit the intended use, although for the specific case of garages, the thinner option would be more than sufficient. It is characterized by the visible screws that join the panels, although if this is not to our liking, we can choose the Facade Panel with hidden screws if we do not mind spending a bit more. There is also the possibility to choose from a wide variety of colors to select the one that best matches the rest of the facade.

The installation of the Facade Sandwich Panel with Visible Screws is extremely simple, as it has a tongue-and-groove system that ensures the correct union between the panels and reduces leaks. Additionally, it is manufactured with a smooth profiling to withstand the forces of external agents, such as wind, when installed outdoors.
The BOX-type Facade Panel can also be used as a roof if desired, although this is not the most common use. Our customers usually choose the Cover-joints Roof Panel or the Three Frets Roof Panel for the roof as it is more economical and perfectly complements the finishes.

Sandwich Panel for the Roof of the Prefabricated Garage

Regarding the roof, the most commonly used types of roofing for the prefabricated garage with sandwich panel are the Cover-joints Roofing Panel and the Three or Five Ribs Roofing Panels. Generally, the Cover-joints is the most resistant to external agents, the Three Frets is the cheapest on the market, and the Five Ribs is the most resistant to loads.

Cover-joints Roofing Panel

The Cover-joints Panel performs best in adverse conditions of rain, humidity, and cold. This is because it incorporates a steel cover that is placed over the joints once the panels are screwed to the structure. Like the BOX-type facade, it is available in various thicknesses and a wide range of colors to match the facade and the rest of the house and fit all types of budgets. It is frequently used for the construction of porches, houses, sheds, barns, garages, construction huts, house extensions, rooms, balcony enclosures, etc. It is the best-selling panel on the market.

Sandwich Panel Three Frets

Another solution would be the Three Frets Roofing Panel, the cheapest sandwich panel roofing on the market. They can be ordered in a wide variety of thicknesses from 30 to 100 mm and can be chosen from various colors. It has valuable properties such as thermal insulation, protection against leaks and humidity, easy repair, and low maintenance costs.

Five Ribs Sandwich Panel

The Five Ribs Panel is characterized as the most resistant Sandwich Panel on the market. Designed and improved by Panel Sandwich Group over the years, this type of roofing panel is reinforced on the top sheet with two extra ribs making a total of five ribs. In general, it supports more weight per m2 under extreme conditions. While the insulation and durability are similar, the resistance and safety margins are greater.

Sandwich Panel for the Roof of the Prefabricated Garage

Building the Prefabricated Garage with Sandwich Panel

Installing Insulated Wall

  1. Choice of structure type where the facade panels will be placed. The decision on the type of material will affect the type of screw used to fix the sheets together and directly to the beam.
  2. Placement and screwing of the first panel. The first thing to do is to fix the necessary trim at the base so that it acts as a rail or guide for the facade panels. Once this accessory is fixed, it is time to place the first facade panel vertically, ensuring it is perfectly perpendicular and supported by the structure. We recommend screwing the panel at the top, middle, and bottom.
  3. Joining the rest of the panels. The second panel is placed at the right end of the first panel, joining together with a simple tongue-and-groove system.
  4. Accessories to complete the installation. These are used to preserve the high performance of our products. Experts can advise you on which are the most suitable for your project according to your measurements and characteristics.

Installing Roofing Panel

  1. Choice of structure type where the facade panels will be placed. The decision on the type of material will affect the type of screw used to fix the sheets together and directly to the beam.
  2. Placement of the first panel. Placing the first panel is perhaps the most delicate moment of the entire installation, because the proper alignment and fixation of the rest of the panels depend on it. We must ensure that the panel is perfectly squared and parallel to the edge of our support.
  3. Joining the rest of the panels
    1. In the case of Cover-joints: Each successive panel is supported on the structure next to the first panel and, after ensuring it is parallel to the previous one and at the same distance, they are joined together with a tongue-and-groove system. At the junction of the panels, a steel clip is placed, and the sandwich panels are screwed together, securing them.
    2. In the case of Three and Five Ribs: Each successive panel is brought to its position, supported on the opposite edge to the overlap of the first panel, and after ensuring it is parallel to the previous one and at the same distance, it is overlapped by placing it over the previous panel and screwing it in the same way on top of the rib.
  4. Accessories to complete the installation. Front or side trims and ridges are placed at the top where the junction is, in the case of a pitched roof and not flat.
Economical Covers-joints Sandwich PanelLow-Cost Blue Roof Covers-joints Sandwich Panel

At Panel Sandwich Group, we have detailed step-by-step installation guides for anyone who needs more information. These are provided to our customers when they receive the material and want to assemble it themselves.


Building a prefabricated garage made of sandwich panels is that affordable and simple. Additionally, at Panel Sandwich Group, we only produce high-quality panels. If you speak with our experts, they will give you the best option that fits your budget. You can contact us through this form or by calling +1 904 512-3122, and we will be happy to assist you.