Construction is a complex process that requires a lot of knowledge and skills. And if a person was faced with the task of attaching a wooden beam to metal, then for this it is important to find out the necessary information. Because this process of work is extremely specific and requires at least minimal skill, and even better if the work is done not alone, but in four hands.
Where to start and what to do
To begin with, it is worth deciding on the possible thickness of the metal itself, and by its size already select the necessary tools. It is important to choose high-quality and durable screws, the thickness of which will directly depend on the type of metal sheet. Everything should be as harmonious and correct as possible. The size of the timber in this case does not play too much of a role. In order to attach a bar to metal, in a metal sheet or in any other form, you need to drill the required hole that will fit the bar. And after that, set the tree to the required height or the correct position and then start installing the screws. Regarding the screws, you should not feel sorry for them, because in this process they are a guarantee of the reliability and strength of the entire structure. If you suddenly rub 
it tries to install the wood in the slate together with the metal, for example, then the screws should be replaced, with self-tapping screws, of the greatest length and volume. Since the work is required rather painstaking, and the timber will have to be held while screwing the screws, then it is worth using the services of some assistant. Because it is almost impossible to cope with this task alone. In four hands, everything will go much faster and with a full guarantee of quality.
Should you prepare a tree?
If the installation of wood into metal is necessary for outdoor construction, then the wood must be prepared and lubricated with a special solution to ensure that the wood is dry and exposed to moisture. This way you can ensure that the structure stands for a long time and reliably, and pleases you with its beautiful appearance. When working with metal, the wood species does not have much knowledge, the main thing is to choose the ideal option for the size and purpose of use.
You need to fasten the corrugated board with self-tapping screws (to metal surfaces or a wooden frame) and rivets (sheet to sheet).
For the installation of a profiled sheet, in most cases, a frame is made. The structure is made of a metal profiled pipe (square, rectangle), wooden slats, a plasterboard profile, a regular corner. Sometimes they produce wall cladding by mounting sheets directly to brick or stone.
How and with what in each specific case to fix the corrugated board?
Self-tapping screws (self-tapping) for metal with a metal washer and a rubber seal
A self-tapping screw (self-tapping screw in common use) is made in the form of a rod with a tip resembling a drill, a triangular thread and a wrench head or a screwdriver. In addition to drill-tipped screws, sharp-tipped screws are also available. To fasten the corrugated board complete with a screw, a press washer and a rubber gasket are used.
We apply:
- for fastening the profiled sheet to metal surfaces;
- with steel thickness up to 12.5 mm;
- without pre-drilling holes;
- for installation, for facing facades, gables, manufacturing gates, wickets, etc.
We do not use:
- for fastening sheets to tool and high-carbon steels;
- for binding metal profiled sheets to each other;
- for fastening to wooden structures;
- for fastening to metal with a thickness of less than 1 mm.
How do we define quality?
Upon purchase, we require a quality certificate that reflects the characteristics according to the DIN standard, including:
For fastening to the frame with a thickness of 2.32 mm, we use products for drill No. 1, with a diameter of 4.8 mm, step 2.12. For metal 5.5 mm drill No. 3, 8.5 mm - No. 4, 12.5 mm - No. 5. Thread pitch 1.8. Self-tapping screws of large diameters must be covered with zinc with a thickness of at least 12 microns.
We choose the length of the self-tapping screws depending on the purpose. To fix the profiled sheet in the lower wave, select a size larger than the materials to be joined by 3 mm. When screwing into the upper wave, for example, for attaching skates, the length increases by the height of the profile.
The industry produces 3 types of self-tapping screws in the shape of a head:
- hex;
- cruciform;
- vandal-proof.
For normal mounting, it is easier to work with the hex head shape. We use anti-vandal screws for fences and cladding, the removal of which from the outside will make free access to the room or territory. Installation of products is done with a special tool. 
Important nuances when fastening corrugated board with self-tapping screws:
- We tighten the screws with a washer and a rubber gasket strictly perpendicular to the plane of the sheet.
- According to the characteristics, self-tapping screws are suggested to be screwed in at 2500 rpm, but it is difficult to calculate the effort by touch. We tighten the screws so as not to crush the rubber washer. The flattened seal will crack over time and will not create a tight fit.
- We do not use rubber seals where a monolithic fastening is required.
- In places with the possibility of unauthorized access to fasteners, we use anti-vandal screws or take self-tapping screws with a notch that prevents arbitrary unscrewing.
How to fix the profiled sheets to a wooden frame?
For a roof mounted on a wooden crate, there is no alternative to traditional metal screws. Select the screws with the largest thread pitch. The larger this parameter, the more reliable the fastening.
Vertically located profiled sheets, which do not require a hermetic fastening in order to save money, are fastened with galvanized self-tapping screws with a monolithic press washer. In everyday life, this is an ordinary self-tapping screw with a wide head. To screw into the screwdriver, a Phillips screwdriver is inserted. 
If the lathing is made of DVL, chipboard, etc., we use screws with a two-start thread. For the roof, we make a set of washers and cuffs on our own, picking up the screw diameter.
- Use standard wood screws, including those designed for fixing drywall sheets. This fastener has a countersunk head and, when screwed in, will damage the surface of the profiled sheet.
- Use drill-tipped screws. The tree does not require drilling, a sharp self-tapping screw is screwed in more securely, and the passage through the corrugated board makes it acceptable for a large amount of work.
Is it possible to attach corrugated board to a shell rock (limestone, brick)?
We mount the sheets directly to the stone or brick wall using dowels with anchors. For installation, we pre-drill holes in the metal. We select the fastener heads with a monolithic wide washer. The shape of a plastic insert with a drip, which acts as a seal. The hole in the profiled sheet is made 0.5 mm larger than the diameter of the insert. 
- For quick installation, use dowels with impact screws. Differ from traditional screws and screws in the shape of the thread. Disadvantage - on impact, the surface of the sheet can be damaged.
- Do not fix sheets on surfaces with protrusions and irregularities.
How to connect profiled metal sheets to each other?
The standard thickness of profiled iron is 0.4 mm. It is unreliable to connect two sheets with self-tapping screws, for example, in the place of the overlap, since the fastening is fragile and depends on the thread pitch.
To solve the problem, we use rivets. The fastener consists of two parts, which are made of aluminum. Rivets are installed in pre-drilled holes and do not require access to the back side. We use a riveting device for installation. In places where hidden installation of rivets is required, we use a hole punch (special pliers holders that pierce the corrugated board from the end of the wave).
The rivets can be used as fasteners for roofing, fence cladding, etc. The disadvantage is labor intensity. A through hole must be drilled for each rivet. 
Other ways of installing corrugated board
Screw and bolt connection
The profiled sheet is fastened to metal surfaces with screws, for example, when used as covers on machine tools, for fastening to special steels. In the sheet and the base on which the installation is going, we drill holes, cut the threads and install.
The bolted connection is used in a similar way, but the fasteners require drilling through holes both in the sheet and in the material to which the installation is going. Bolts are used to connect corrugated board with metal and wood frames, resisting vandalism and unauthorized access.
Adhesive base
For interior cladding of flat walls, the profiled sheets can be glued. As a bonding element, metal putty mixed with PVA glue is used. The sheets are pressed against the base and kept until plasticization of the adhesive composition. In this version, the corrugated board does not perform bearing functions, but serves for decorative purposes.We have you and a set of screws for it.
Installation of fences requires the use of high-quality fasteners that are capable of providing the fences with proper strength and durability. One of the most important structural elements of the fence, in addition to pillars, can be confidently called logs, or veins. The veins are horizontal lintels on which the spans of the fence made of corrugated board, metal picket fence or wooden fences are installed. Lags (veins) are attached to the support posts of the fence, mainly for welding. However, today this is not the best solution. Welded joints often do not look aesthetically pleasing, but the main thing is that over time they rust and require constant maintenance. The joints that were welded by welding have to be constantly tinted, since during the fastening process, damage to the protective metal layer, which protects the structure from corrosion, is inevitable. It is also worth noting that welding is not possible everywhere, in particular, this requires access to power grids, which are not always available at the places where the fence is built. The use of a generator incurs additional costs.
In this regard, today fasteners are gaining more and more popularity: fasteners for poles and logs, as well as x-brackets. They are not much inferior in strength characteristics to welding, and at the same time have a number of indisputable advantages. Fastening connections greatly increase the speed of installation, in addition, already attached joists can be easily removed and installed back or in a new place. When installing fence spans using fasteners, damage to their protective layer, painted with primer enamels, galvanized or powder coating, is excluded.
Fence log holder Pole fasteners and logs are made according to a different principle: bent metal elements made of sheet metal are used, which are connected to each other by industrial welding, after which they are covered with zinc-containing primer and powder paint. Pole metal fasteners are available in different models and sizes.
X-brackets are made by stamping from an all-metal sheet and subsequent processing of products by hot-dip galvanizing. The result is a cruciform structure with curved edges with holes for attaching the x-bracket to the fence post and fixing the lag.
Installation of fasteners for pillars and fence lags
The process of installing a fence made of corrugated board, metal picket fence or wooden fences using fasteners is quite simple. On the support pillars, the fence is marked at the points of fastening of the fasteners. The fasteners are applied to the table, a lag is inserted into it, the horizontalness of which is checked by the building level. Then, the mount is screwed to the post using bolts or roofing screws. The X-bracket is attached according to the same principle.
Installation of lags using holders
The fasteners are easy to use. Their use can significantly speed up the installation processes and significantly increase the aesthetics, reliability and quality of the fence design. Our company provides services for the installation of turnkey fences and performs certain types of work: drilling holes for fence posts, installation of metal posts from a round and shaped pipe, installation of logs by a welded method or using fasteners, installation of corrugated board and other construction work.
How to attach veins to round fence posts? [QUESTION]
I installed metal pipes as posts for the fence, the question arose of attaching the "ears" for attaching the veins to the posts. But on the Internet I did not find any information on what size it is recommended to make these "ears", I do not have enough experience to determine this. The veins are planned to be wooden, 100x50 mm, span length 2.5 m; pillars d = 76 mm What height, thickness and length is better to make "ears" so that it is convenient to mount the veins and the fastening is reliable? And what is the best way to attach the veins to the ears - with bolts, nails, or in some other way?
Answer: Just about the veins, they are absolutely useless of this size. Moreover, with such a small span. 60x40 mm, as they say, "behind the eyes."
As for the "ears", they are generally not needed. Drill through your pipe and fasten the veins with ordinary M 10 threaded bolts 120 mm long as shown in the figure. To prevent unwinding, put Grover washers. You can cut the ends of the bolts a couple of millimeters to protrude beyond the nut and rivet.
Sink the bolt heads into the vein.
Unfortunately, you have not specified the material of the fence. 
The construction of a fence around the perimeter of the site requires strict adherence to building rules at all stages of work. The slightest deviation from the established norms can cause deformation of the fence. Before starting the construction of a fence, for example, from corrugated board, you should know exactly how to install the posts, how to fix the corrugated board, which fixing products to use (screws, bracket, clamp, rivets). 
This is what self-tapping screws with rubber washers look like for screwing the corrugated board to the fence frame
Fastening the lag of a fence made of light building materials, for example, a profiled sheet, a fence made of a picket fence or wooden boards, must be carried out only with the use of high-quality components. In the old days, the lags of the fence made of profiled sheet were joined to the supporting screw piles by welding. Such work was only within the power of professionals and implied the presence of electricity and welding equipment on the site. Welded fences did not always look aesthetically pleasing and needed constant anti-corrosion treatments at the attachment points.
Modern fences for home gardens are mostly modular fences made without welding, which are easy to assemble, original and durable. They are kits consisting of supports, sections and fasteners. 
Option for attaching transverse lags to fence posts
Fasteners for such fences are also in line with current trends. In most cases, metal frames are held together using fixtures such as a clamp or bracket.
In recent years, the proven x-fastener for the fence has become very popular, providing a quick, aesthetic and quality connection. Any fastener for corrugated board or other section sheet is a product specially designed for construction work. Fastening the lag of the profiled sheet with the help of modern fixation methods is possible even for beginners.
Fasteners for corrugated board to the fence are made of high-quality steel coated with anti-corrosion powder or zinc. Various fasteners and additional accessories are provided for logs, posts and fence sheets, for example, rivets, a clamp or a suitable bracket. 
An example of various types of clamps for attaching a profiled sheet to a post
You can buy these accessories in any specialized market, in online stores or in construction goods supermarkets.
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Fence fasteners for corrugated board are presented in two main types:
- Bracket or x-bracket;
- Fasteners for logs and poles.
Clamp, bracket or rivets are designed for different types of fixation. Their correct combination will help firmly connect the posts and horizontal veins (logs). Anyone can buy these parts, and their ease of use does not require either experience or the use of special devices and devices. 
Drawing of possible options for attaching the lag to the post
Thanks to such products as fasteners for corrugated board, polycarbonate, picket fence or wood, the construction of fences of any complexity is greatly facilitated.
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Fasteners for corrugated board, for example, a bracket, are made by stamping from a hot sheet of metal. The fastening clamp, with the help of which the posts are connected to the joists, is made from metal bent parts welded to each other.
The finished bracket is hot-dip galvanized, and the welded fasteners are painted with protective powdered dyes.
These accessories provide the fence with aesthetics, good wear resistance and strong fixation for the entire service life. Fastening the corrugated board to the fence using fasteners is becoming an increasingly popular method of joining structures. 
Scheme of the correct fastening of a sheet of corrugated board to the frame
The advantages of using this fixation method include the following:
- Convenience and ease of connection;
- Availability;
- Fast pace of installation;
- All docking points look nice and neat;
- There is no need for electricity and welding machines;
- The integrity of the upper layer of the structures to be mounted is maintained.
Special fasteners for corrugated board, for example, a clamp, helps to connect the posts, beams and fence sections firmly and efficiently. At the same time, the elements of the fence are not exposed to rough impact and mechanical damage.
Such a connection gives the fence an external beauty, integrity and provides it with a long service life. If you need to rearrange the pillars, change the fastening of the lag or dismantle the fence, then this can be done without damaging the prefabricated components.
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Most often, fences from a professional sheet are erected around summer cottages and land plots. 
This material is versatile, strong, affordable and durable. The professional sheet is used as a fence covering everywhere. Even a novice builder can easily learn to work with it. A wide range of colors and an assortment of profiled sheet canvases add to its popularity. You can buy a quality product in many stores in the country and for a relatively low price.
Consists of a sheet of material from a sheet of steel, which has undergone galvanized and anti-corrosion treatment. A primer is applied over the protective layers. The last coating of the product is a fence made of corrugated board, covered with paint with polymer components. So that during the construction of the fence the canvas does not get damaged, only special fasteners, such as a clamp or brackets, must be used for its fastening.
Wooden beams are a practical building material. Low price, low heat loss, low weight and ease of installation of a house from a bar make this material very popular. However, it is not so easy to fix the timber to the foundation, because the tree cannot be glued to concrete or welded to metal. In this article, we will talk about how the timber is attached to various foundations, what they pay attention to and what mistakes they make.
Types of foundations for a house from a bar
Waterproofing
The lower beam, as well as the wooden grillage, must be properly protected from water and dampness, however, it is not always possible to use creosote or other equally effective (and most often unpleasantly smelling) substances. If it is not possible to process the grillage or the lower beam with heavy fractions of oils, then less effective substances must be used, and at least 2 layers of roofing material must be laid between the foundation or the iron / concrete grillage and the timber. This is a material that falls out during temperature extremes. Indeed, in the morning the air temperature rises, and the temperature of the foundation or grillage remains unchanged. If you use a wooden grillage, then waterproofing must be laid both under it and above it. This will keep the wall dry and prevent mold and rot.
Which mounting method is better
When choosing a mounting method, consider the following factors:
- timber moisture;
- climatic conditions;
- seismic activity;
- the strength of the most frequent winds.
To attach a wet (over 16%) timber to a wooden grillage, only shrinkage compensators must be used. All other fastening methods are ineffective.
After all, a beam of high and especially natural moisture gives a very strong shrinkage, so ordinary anchor bolts will not be able to provide high-quality fixation. To attach a beam of high or natural humidity to a wooden grillage, it is necessary to use an analogue of a shrinkage compensator, only made not from a screw, but from an anchor bolt. The same method can be used when installing a bar on threaded rods. Instead of a nut and washer, a nut, two washers and a spring must be used. The same method of fastening should be used in those regions where there are heavy and long rains in the spring and autumn.
In regions with high seismic activity, it is necessary to use a lower bar with a moisture content of no higher than 12%, treat it with the most effective waterproofing and install it on the most rigid fastening (regular and anchor bolts). This will ensure sufficient strength of the entire structure. The same approach should be applied in regions where wind speeds often exceed 20 meters per second. Neglecting a rigid mount in seismically active or windy regions will cause the mount to loosen under the influence of external factors and the house will begin to sway. Neglecting shrinkage compensators when working with a bar of natural and high humidity, as well as in regions with frequent and heavy seasonal rains, will lead to the appearance of gaps between the cap and the foundation or grillage.