Any building should have a fence that encloses the surrounding area. For its construction, a variety of materials can be used, for example, wood or metal. In order for the structure to last for a long time and possess the qualities of reliability, it will be necessary to erect the foundation, only then can a dwelling or building of any other purpose be reliably protected from prying eyes or unauthorized access.
Depending on what design the fence will have, you may prefer a certain kind of foundation. The base may be stone, columnar, tape or tape-column. Before the construction of the foundation, it is necessary to carry out marking on the ground, as a rule, the design plan is prepared in advance. The marking should be carried out around the perimeter, before this you should prepare a rope that is stretched between the poles installed at the corners.
Preparatory work
If you will build a strip foundation for the fence, then you will need to create a reinforced concrete strip that is laid out around the perimeter. It is worth recognizing that this particular type of design is used for fences. However, before starting work, it is necessary to consider all stages of the construction of such a foundation. Initially, a trench is excavated, the depth of which will depend on climatic conditions, the weight of the structure and the stability of the soil. As a rule, this parameter varies from 60 to 80 cm, while the width will depend on the thickness of the future fence.
Before carrying out subsequent work, sand is poured over the bottom of the trench, which is compacted and watered well.
Creating a reinforcing cage
If you will create a strip foundation for the fence, then the next step is to take care of the installation of the fittings, it will give the strength of the structure. Standard rods for such a fence should have a cross section of 10 mm, and elements must be laid 5 cm from the bottom of the trench. A support is laid under the reinforcement for this, and the first two rows of reinforcement should be equal to the length of the trench, while the elements should not reach the walls of 7 cm. The transverse components should be located along with the vertical ones, the distance between them is 40 cm. The vertically oriented racks should be lower the upper cut of the base is about 7 cm. The top is fixed with longitudinal beams, and the structure is installed using a knitting wire or by the welding method.
Formwork
The strip foundation for the fence must have a formwork, it will allow you to form a concrete base. At this stage, a 25 mm edged board should be used, from which the shields are knocked down. The finished structure should form a box, and the upper part of the formwork should rise 30 cm or more above the ground surface. In order for the elements to remain in place, spacer boards should be installed.
Concrete mortar
If you want to build a strip foundation for the fence, then the next step is to start preparing the concrete mix, which is poured into the formwork. In this case, you can take the ratio of 1 to 4, which involves the use of cement and quarry sand. To improve the strength of the composition, crushed stone or screenings should be added to the ingredients. In the end, you should get a thick mass. In order for the soil in the trench not to take moisture from the mixture, the bottom of the pit should be moistened. After the completion of the pouring phase, approximately three days should pass, only after that it is possible to proceed to dismantling the formwork and further construction of the fence.
Recommendations for the construction of a strip foundation
When installing a strip foundation for a fence from corrugated board, it is important to remember that the width of the trench should not be less than the thickness of the future fence. The walls of the trench should be as vertical as possible, but if we are talking about loose soils, then they can be located at an angle.
When a trench is being prepared, it is necessary to monitor the level of the site. Thus, the master is recommended to start work from a low place, then the depth of the foundation will not be less than calculated. At the bottom of the trench you can pour a layer of rubble, which sometimes replaces the sand. However, in any case, the preparation must be tamped.
Features of the formwork
Pouring the strip foundation under the fence should not be carried out with large interruptions, in this case, you may encounter delamination of the base after drying. However, it is first important to correctly create the formwork, the boards of which are installed at the edges. But if you will work with loose soils, then the elements are installed at the bottom. In order to make the surface smooth inside, the boards should be strengthened from the outside. To facilitate the dismantling of the boards, the bottom and walls from the inside can be covered with plastic wrap. However, such a layer cannot be called reliable waterproofing, but during the maturation of concrete this material will exclude the absorption of moisture by the soil, which will increase the strength characteristics of the base.
Fittings are placed inside the formwork, which is used as a corrugated bar. However, to save money during the construction of an easy fence, metal scraps, reinforcing mesh or pipes can be used. In those places where the supports or columns will be located, reinforcement should be carried out strictly according to the rules. They say that the bar should form a three-dimensional structure, which is connected by wire. To increase the strength of the columns, you can install the axis of the element from a metal pipe.
Band and column foundation
The do-it-yourself strip foundation for the fence can be made with the additional use of supports. This design can be used for a brick fence, as well as structures that will consist of wood and brick or stone pillars. Sometimes a tape-column foundation is installed in conjunction with a fence from corrugated board. At the first stage, you need to make markings, a trench is excavated along it, the width of the latter can vary from 20 to 25 cm, but you need to deepen the base by half a meter. Every three meters, it is necessary to make recesses where the poles will be installed. The width of the pit should be equal to 0.4 m or more, while the elements need to be deepened below the freezing line of the soil, which is approximately 1.5 m.
If you are thinking about how to make a strip foundation for a fence that will have supports, then metal frames can be used instead of the latter. The columns are installed in the pits, and the resulting space is poured with concrete. The verticality of the supports must be controlled using a plumb line or level. Metal reinforcement should be placed in the trench, the thickness of which can vary from 8 to 12 mm. Concrete is poured to ground level.
Conclusion
The turnkey strip foundation of the fence can be done by professionals, however, you will have to pay about 20,000 rubles. Sometimes cost scares consumers, so they prefer to carry out such work on their own.