Which is more expensive, ladder bridge or trough bridge?

The prices of ladder bridge and trough bridge vary due to various factors, such as size, material, production process, market supply and demand, and so on. But overall, the price of ladder style cable trays is higher than that of trough style cable trays. Firstly, the installation and maintenance costs of ladder style cable trays are higher than those of trough style cable trays. Ladder style cable trays are composed of multiple trapezoidal steel grids, requiring more labor and more complex tools for installation and maintenance. Therefore, generally speaking, compared with trough style cable trays, the installation and maintenance costs of ladder style cable trays are higher. Secondly, the material cost of ladder style cable trays is also higher than that of trough style cable trays. Ladder style cable trays are usually made of polymer or metal materials, while trough style cable trays are usually made of metal materials. Polymer materials are relatively more expensive than metal materials, therefore, the material cost of ladder type cable trays is also higher than that of trough type cable trays. In addition, market factors can also affect the prices of ladder type and trough type cable trays. At present, the demand for ladder style cable trays in the market is greater than that for trough style cable trays, therefore, the price of ladder style cable trays is relatively higher. In summary, the price of ladder style cable trays is higher than that of trough style cable trays. However, when choosing a bridge frame, comprehensive consideration should also be given based on actual needs, taking into account factors such as price, quality, safety, durability, etc., to select the most suitable bridge frame for one's own needs.