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How Much Tying Wire Do You Need?

Sep. 24, 2021

When placing an order, we are often asked how many bundles of tying wire we need. To help you estimate the correct amount of tied wire, this article focuses on tying reinforcement and provides a practical guide to calculating the amount of tied wire.


Why tie?

When placing reinforcement, it is important that the reinforcement stays in the correct position as it is walked over and as the concrete is poured. To ensure this, ties are used at the intersections and overlaps of reinforcement. Tying also prevents the flying edges of the reinforcement mesh from eventually entering the overlay and rusting here. Adequate rigidity of the reinforced structure is achieved by making adequate connections with the lacing wires. In addition, as a general rule.

 PVC Coated Rebar Tie Wire 

 PVC Coated Rebar Tie Wire     

The greater the load on the reinforcement, the more lacing is required.

The larger the diameter of the rebar, the less lacing is required.


Types of tying wire

The annealed tying wire will rust when it comes into contact with moisture.  will rust if it comes into contact with moisture. If this is undesirable, for example when installing underfloor heating grids or working with stainless steel rebar, it is recommended to use galvanized tying wire or stainless steel tying wire. 

Rebar tie wire, also known as rebar tying wire, is made from the softest low carbon annealed steel wire. With fully galvanized and PVC coating on the surface, it offers excellent flexibility and corrosion resistance mainly used for tying and bundling reinforcing steel bars, supporting plants in gardens.

Black Annealed Rebar Tie Wire

Black Annealed Rebar Tie Wire


Tools for tying

Strapping rebar with wire cutters is labor-intensive and places a considerable strain on the forearm due to the repetitive turning movements that must be performed. As a solution to this, there are double-loop relations. With the help of the double-loop tying tool, tying knots is easier and faster.


Using the tool

By inserting the hook of the device into the eyelet, the wires are twisted together with just one pull. Now there is no need to cut the wires either.


Types of ties

Different types of ties can be used. The main types of ties used are snap ties, saddle ties, and cross or figure-of-eight ties. Snap ties are the quickest to make and the most used. Saddle ties are used when connecting straight and curved bars that cross each other. However, if the situation requires a stronger connection, a double thread can be used to make a figure-of-eight tie or one of the three techniques.

 Galvanized Rebar Tie Wire

Galvanized Rebar Tie Wire     

The ultimate strength of all three ties is achieved by tightening and twisting the wire two or three times before cutting it. Ensure that the cut wire does not protrude to prevent injury or stick out of the concrete.


A practical guide to the number of wire ties to be used

In order to estimate the amount of tied wire that will be used during the project, we have established some rules of thumb to calculate the amount of tied wire. These rules of thumb are based on practical experience and are therefore not binding recommendations. The table below shows how many ties will be made for each product. For snap ties, assume a thread length of 12 cm. By multiplying the number of ties by 12 cm, you can calculate how many ties you will need.


Calculation method

For structures with a single layer of reinforcing mesh, each overhanging end must be provided with ties at the end. When laying double mesh flooring, each fly edge must be tied at the end at the outer reinforcement (first layer) and approximately every 450 mm at the fly edge of the second layer. Because in the case of double mesh, not every fly is tied, the number of ties is calculated by multiplying the number of flys of the reinforcement mesh by 0.9. With this method of calculation, the number of ties may be slightly more than it actually is (it is possible to make ties every 450 mm on the long side), but then you will never be short of ties!

If you want to get more information about the high-quality rebar tie wire for sale, welcome to contact us.