Monday, January 05, 2009

How to Build a Fence with Ease using a Laser or Optical Instrument

One of the most challenging aspects when building a fence is to make sure it is straight when you lay it out before construction. This is important not only to insure then fence looks good but will be easier to build and more sturdy. Taking the correct first steps in building a fence can save time, money and energy. The traditional way to ensure a fence was straight was to lay the four corner posts and tie string. This works well but can be very tedious and doesnt work well on large areas you're wanting to fence in. The string must be pull taut, which can be very difficult if you are building a fence in a large area. The string will be affected by the wind which could cause your measurements to be inaccurate.

EngineerSupply offers many tools that are useful for constructing a fence. Wondering how to build a fence and what tools to use? Of course, you need a strong back and the trusty pole-hole diggers, or if you're lucky a tractor with an PTO-driven Auger Attachment. There are two different options available for layout tools, laser and optical. An optical instrument such as the David White LP6-20NXL Level is set up on a tripod and should be pointed along the length of the fence. The user can then look through the eye piece to discover the correct positioning for the fence posts and then make necessary adjustments.

Another alternative is to use a construction rotary laser to lay the fence posts. Construction lasers emit a straight beam that can be used to align the fence but will need to be used with a detector when doing exterior work. By running this detector along the length of the fence you will be able to identify straight and plumb. Make sure the rotary laser you are using has a vertical feature so you can lay the instrument on its side for a vertical plane. The AGATEC 510-GC (11-0324) is a Horizontal and Vertical Rotary Laser. The self leveling feature insures that the reference line is level and plumb. It also comes standard with rechargeable batteries. A laser line generator is generally a less expensive alternative but can only be used on smaller job sites.

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