All about open beam supports

This article tells you everything you need to know about open beam supports. Open supports 50x140 and 100x140, 150x150 and 50x100, 50x200x2 and 140x76x100, 100x100 mm, galvanized and other supports are characterized. And you can also learn everything about the selection and practical use of such elements.

Planks and beams based on timber are often used in low-rise construction. In large houses, such elements are of an auxiliary, auxiliary character. The main role of these products in private construction is the assembly of roof frames and truss complexes. Often, completely wooden houses are also built, for which glued or profiled material is used. In this case, the open support of the beam just helps to connect (attach) single beam and rack parts to each other, to increase the strength of the building.

Structurally, this is a bracket with a profile or a double corner. The minimum allowable thickness of the product is 0.2 cm. A complex system of holes is provided. Thanks to it, it is possible to fix on:

• bricks;

• concrete support;

• wooden crowns of a bar.

An open universal galvanized support for a bar can have a variety of dimensions (dimensions). So, there is a model with a size of 50x140 mm. Solid steel is used for its manufacture. Typical width is 5 cm. Of course there are other modifications.

So, a block of 100x140 mm differs in mechanical terms only by the calculation for a beam of 10 cm with a section. Otherwise, there are no significant features that differ from the previous sample. Most often, holes of 0.5 and 1.2 cm are provided. The thickness of the anodized material is usually 2 mm, unless the manufacturer has chosen another solution. Similar models of supports are used for:

• baths;

• residential buildings;

• other wooden structures.

Note that other support structures have a similar thickness. Therefore, supports for the timber are becoming more and more widespread:

• 50x200x2 mm;

• 140x76x100x2 mm;

• 110x76x40x2 mm.

In large retail chains and direct suppliers, you can buy supports of other dimensions. So, the 150x150 mm version has the following parameters:

• execution in the form of a bracket;

• weight 512 g;

• height 15.1 cm;

• width 6.2 cm;

• thickness 0.2 cm.

Many manufacturers use electro-galvanized carbon metal. There are 2 holes with a cross section of 12 mm. They are complemented by 8 channels of 0.55 cm each.

A good example of a 140x76x100 mm support is the OBR-100 design. The manufacturer positions its product as suitable for both walls and roofing elements. It is possible to mount a beam to foundations from:

• wood;

• concrete;

• bricks.

Supporting elements 100x100 mm (and their close analogue, according to a number of technologists, 100x105 mm) can be widely used. The platform for a 10-centimeter beam has a projection of 7.6 cm. Self-tapping screws and nails are introduced into the shallow passages. In large ones they lay:

• anchors;

• dowels;

• hairpins;

• bolts.

Supports 100x200 mm are operated in a similar way. They are suitable for both square wooden beams and beams. The staking area is already the size specified. Fixing passages of 5 and 11 mm are provided. Typical weight - 575 g.

In hardware stores, versions of 90x50 mm are quite often also sold. They are quite reliable and can be used even in difficult conditions. The 0.5 cm holes allow the use of self-tapping screws and nails.But it is also allowed to use bolts or threaded rods up to 1.3 cm in size. Manufacturers say that the support will have to be changed after at least 30 years.

Perforated plates with a size of 40x100 mm are also regular guests at construction sites. Their standard weight is 290 g. Most often, the width is 80 mm. The standard load in the vertical plane is 600 kg. Therefore, any problem arising in wooden housing construction can be successfully solved.

In conclusion, it is worth mentioning more about such frequently encountered dimensional positions of open supports, such as:

• 50x200;

• 50x105;

• 50x150 mm.

There are several types of open beam supports. The point is that sometimes you need to adjust the connection. This is important if the timber is attached to a concrete substrate. The screw pair and specially thought-out axial sealing of the screws allow to damp the fluctuations in the joint gap. Rigid retention is not provided, as well as an unambiguous fixation of the relative position.

By design, the supports of the beams are simple: they combine the so-called "bed" and side petals. The “bed” part fixes the part to the horizontal beam. Internal dimensions must fully correspond to the geometric dimensions of the timber. That is why the marking always focuses on such a moment. The connection is achieved using standard carpentry screws, and no specific structures are required for work.

Side-type petals provide wall retention. The holes in the shelves are calculated in such a way that it was possible to drive in there not only ordinary self-tapping screws, but also "wood grouses" of increased power. A T-joint is provided. The beam is attached with the end part to the crown, making sure that this is provided on both sides of the butt line. Attention: the open support is obviously not suitable for the corner connection.

Brackets:

• used even by private individuals without special skills and training;

• allow you to do without inserting wooden blocks and using embedded parts;

• speed up the work many times compared to the formation of a traditional log house;

• are divided into several universal sizes;

• allow you to do without drilling;

• absolutely resistant to corrosion processes;

• very reliable and stable under normal conditions.