We build a gable greenhouse from a profile pipe according to the drawing

Pros and cons of a profile pipe

Profile pipes are usually made from low alloy carbon steel. They can be of any shape, except round, but in construction for the construction of various types of frames, rectangular and square are most in demand. Multi-stage heat treatment of the profile pipe guarantees the reliability of the butt joints and the absence of mechanical stress inside. Thus, the main advantage of the profile pipe is the high strength and durability of the material.

Such structures are not susceptible to rust and corrosion, are lightweight, but can withstand a serious load during operation. They are easy to work with - cut or welded - and are inexpensive. This type of material has practically no drawbacks. The only difficulty in the work is difficult bending. Profile pipes are the most common material for the construction of greenhouses and even houses with their own hands.

Choice of pipe size

Pipes of almost any size are on sale. The manufacturers themselves recommend using a profile with a cross section of 25 mm or more for the construction of greenhouses and greenhouses, depending on the type of polycarbonate with which the frame will be sheathed. For the base of the greenhouse, it is advisable to use pipes of a larger diameter. For wind resistance and, especially, snow resistance, the thickness of the metal should be at least one and a half millimeters.

Drawings of homemade structures (types)

The first step in assembling a greenhouse is a detailed diagram or drawing. You can take drawings from the Internet as a basis, but adapt them to your site. Each type of greenhouse has its own drawings and manufacturing features. The most common type is a gable greenhouse or a house. In second place in terms of prevalence is the arched shape.

The dimensions of buildings are usually calculated based on the length and width of the polycarbonate sheets that will be used for the cladding, so that large pieces do not have to be cut and thrown away. If you do not grow vegetables for sale, then a greenhouse up to three meters wide and about six meters long is enough. The optimal angle of inclination of the roof is about 30 degrees. Making a greenhouse can take about two to three days.

We build a frame

A basic set of tools for assembling a frame with your own hands - a tape measure, a level, a grinder (or metal scissors) and an electric screwdriver. For end walls, it is recommended to use 40 x 20 mm profiles. To speed up the work, and if you are confident in your drawing and know how to handle metal profiles, you can immediately cut all the frame parts.

If not, then the first step is to assemble the frame of the back wall of the greenhouse. Considering the drawing, cut the profile to the desired length. Sections are fastened with screws, self-tapping screws or rivets.Further, it is necessary to re-measure the resulting frame element in all parameters - length, width, diagonals. The last measurement is fundamentally important - the size of the diagonals must match. Similarly, you need to assemble the front end wall and fix both walls to the base, adjusting the correct installation using a plumb line.

You can then cut off the sidewall guides. Here it is enough to use a pipe of 20 by 20 millimeters. The guides must be fastened to the base every 50 centimeters. The frame of the side walls is completed by a profile fixed on top parallel to the lower profile. The side rails and roof rails are attached to it. Another rail is attached under the roof ridge.

Video "How to build a frame"

In this video, you can see the algorithm of actions during the installation of the frame for the greenhouse.

Foundation

A gable greenhouse is the easiest to assemble with your own hands, but the first thing you need to do for it is to prepare the foundation. It can be wood, brick or concrete. The concrete foundation is the simplest, but quite reliable. Around the perimeter of the future greenhouse, you need to dig a ditch up to thirty centimeters deep and about 20 centimeters wide.

You need to drive reinforcement into the ground (you can cut a profile pipe), onto which the sections of the profile pipe will be welded under the base of the greenhouse. It is enough to do this in a meter and a half. In the corners, it is better to drive in not one piece of reinforcement, but two - at a minimum distance to the actual corner. The bottom layer of the foundation is fine gravel.

Before laying concrete, you need to tamp it with your own hands and the final height of the gravel layer should be no more than 5 centimeters. Concrete is poured over this layer. After the concrete has dried, a 40x20 mm profile pipe must be welded to the reinforcement.

How to bend pipes

One of the main issues when assembling a gable greenhouse is to cut or bend the profile pipe at the transition from the walls to the roof.
Before bending the pipe, you need to double-check the drawing and make sure that the bend angle is correct. In order to bend the pipe with your own hands, you need to cut it with a grinder in the place of the intended bend.

After such processing, the pipe bends quite easily. Next, the place of the fold must be welded. Also on the net you can find tips for bending shaped pipes using sand or water. And the third option is to use a pipe bender, but these are additional costs.

Welding a greenhouse from metal pipes

As mentioned above, welding is required to secure the frame to the foundation or pipe bends. This is the simplest reason why a welding machine may be needed to build a greenhouse. In the event that it is planned to manufacture a year-round capital greenhouse, it is better to connect the parts of the profile not with self-tapping screws, but also by welding. The assembled greenhouse frame is ready to be sheathed with polycarbonate sheets or foil.

Video "What the finished frame for a greenhouse looks like"

This video shows how the finished frame for a greenhouse from a profile pipe looks like.