An inspection hole in the garage is not just useful, but often a very necessary design. When carrying out any repair work or even a simple preventive inspection of the vehicle, sometimes you can not do without it. And to make it yourself is not very difficult. The main desire.
A viewing hole in a garage is usually erected during the construction phase of the garage itself, more precisely, before the floor is arranged. But it is quite possible to arrange it in an already finished building. Only for this will have to first carry out a number of dismantling works.
It is necessary to begin the construction of the pit with planning. And first of all, it is necessary to determine the overall dimensions of the created structure. The width of the inspection hole in the garage is usually selected based on the brand of the car. And usually it is equal to the cross-axle distance of one axis minus 20 centimeters. If it is planned to equip a universal pit, i.e. without reference to a specific vehicle model, the width is selected approximately 75-80 centimeters. Depth is calculated based on the growth of the car owner. Usually, another 15 centimeters are added to this indicator. Such a depth of the pit allows free access to all units of the car. As for the length, it should be done one meter more than the length of the vehicle. This size allows easy access to the pit.
When the issue of dimensions is resolved, the construction of the inspection hole in the garage begins directly. The first stage is digging a foundation pit. Its dimensions should be larger than the dimensions of the final pit determined at the planning stage. This is due to the fact that you still need to equip the walls and floor in it. Therefore, you should make small allowances - 25 centimeters - for each side of the pit and floor. The length and width of the pit will be 50 centimeters more than the same values of the inspection pit, and depth - 25 centimeters.
The next step is the arrangement of the floor. First, create an air cushion of 10 centimeters of gravel and 5 centimeters of sand. Each layer is stacked separately, leveled and compacted. Next, cover the resulting sand cushion with clay and put waterproofing on it. Thanks to this constructive approach, the inspection hole in the garage will be protected from groundwater. After this, it is necessary to lay out the reinforcing mesh and pour everything with concrete. When the mortar dries, the floor can be finished.
The last stage of construction is the construction of walls. Since the viewing hole is a depression in the ground, care should be taken to protect it from groundwater. For this, the walls of the excavated pit must be covered with clay, and then waterproofed. Such work is usually enough to protect the pit from the penetration of water from the ground. Next, the walls themselves should be erected. The most common method is
concrete pouring with mandatory reinforcement. To do this, you will have to additionally equip the crate. You should also take care of the limiting rail at the level of the garage floor. It prevents the vehicle from rolling into the inspection hole. For these purposes, a metal T-profile is usually used. But sometimes the inspection hole in the garage along the perimeter is simply fenced off with a small curb height of 5 centimeters. And, of course, you should provide steps for lowering / raising or at least a ladder.