How to bend drywall in a semicircle - simple ways

Novice craftsmen do not always know how to bend the slab correctly without violating the integrity of the gypsum filler, which is later used for sheathing arched openings and columns, making decorative elements and rounded interior partitions.

In order to make a semicircular wall, a decorative element on the ceiling, or another segment, there are two correct ways.

The process begins with rolling the surface of the gypsum plasterboard with a special tool - a needle roller. This must be done strictly according to the bend markings, across the sheet, penetrating only through the cardboard layer and half of the gypsum core. If the above tool is not available, use an ordinary awl, which will significantly slow down the sheet processing process.

Before bending the drywall, the surface area that will be concave is perforated.

Then the perforated side of the drywall should be wetted, this should be done as carefully as possible. There should be just enough water so that it is absorbed into the core, but does not wet the other side of the plaster.

When the gypsum board is saturated with water, it must be carefully bent, giving the required bending radius or laying it on a previously prepared frame. In this position, the drywall can already be fixed with fasteners.

The main advantage of this method of bending drywall is the maximum ease of use. But in this case, you can not guess with the amount of moisture, and therefore, if you have never encountered a similar process, try your hand at a small piece of gypsum board to fully familiarize yourself with the technology.

Dry bend

In order to bend drywall in a dry way, you should adhere to the following algorithm of actions:

• First of all, the marking of the slab is implemented. Marks with a pencil or shallow notches with a sharp object.
• The greatest labor costs in this case fall on the application of parallel cuts to each other, made from edge to edge. For this, a construction knife and a rule or a two-meter level are used. The penetration depth of the cutting tool, as well as the distance between the grooves, directly depends on the required sheathing radius.

After a piece of gypsum board is prepared for installation on a semicircular base, it is fixed, cleaned of pieces of the slab, primed and putty. It is worth noting that when creating structures in a semicircle, the visual perception of the finished round or semicircular product will directly depend on the quality of its finish.

For arch

It is used to give the gypsum board a very gentle bend. The thickness of the board should not exceed 9 mm.

We bend the drywall for the arch in a semicircle:

• The required number of self-tapping screws and a working tool are prepared (they should be located not far from the master)
• The slab cut is fixed from one edge with fasteners
• At the next stage, the sheet is gradually very neatly bent and fastened with the next pair of self-tapping screws.
• An arched opening is gradually formed, with translational fastening of drywall to the frame

Professional craftsmen do not recommend using the method of sequential stretching on a semicircular frame wall for beginners who can very easily break the material and increase their own costs. If you have a desire to try your hand, use a special arched drywall.