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What are folding squares used for?

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Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Folding squares are useful for large scale measuring and marking tasks both in and around the home or work site.

Here are some of their most common applications:

Flooring installation

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Flooring installation is the layout of a covering over a floor structure. The covering is a finished material used as a walking surface.
Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. A folding square can be used to lay tiles or wooden flooring. It helps to keep the flooring material square, reducing error and saving money.

A folding square would be used for this specific application over another type of square because it is a much larger tool so it is able to cover more ground.

Stone masonry

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Stone masonry involves producing buildings, structures and sculptures using stone.
Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Folding squares can be used in stone masonry to make sure corners are square (90 degrees). The ruler on a folding square can also be used to mark or measure stone.

Stone masonry can involve measuring large structures so the folding square helps to reduce time and user effort as it covers larger areas with less effort.

Carpentry

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Carpentry is the producing, installing and repairing of wooden structures and objects.
Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Folding squares are used in carpentry to keep structures square, straight and to reduce the chance of errors while installing. A folding square can be used to measure and mark wood prior to cutting.

Folding squares are versatile tools which can be used on a wide range of carpentry applications. Users working on large carpentry projects would benefit from larger size of the folding square.

Paving installation

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Paving installation is the layout of stone, brick or tile used as exterior flooring. Paving is used to create patios, driveways, walkways and a number of other outdoor surfaces.
Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Folding squares are often used when paving to check that edges are straight and level.

Construction

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Construction is the production of large scale building projects. This can include anything from houses to skyscrapers and from roads to motorways.
 Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. The folding square could be used in buildings to lay out corner structures, walls, door openings and check measurements.

Construction involves large projects, so having a large folding square would enable the job to be done more quickly.

Checking

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. A folding square can be used to check if a frame is square or if it contains a rule, to check measurements.

As some folding squares do not contain rulers not all can be used the check measurements; this would have to be done with another measuring tool.

Angle layout

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. As certain folding squares contain specific angles, these can be used to mark objects that require an angle.
Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. An example of when you would use a 45° and a 90° angle, for example, is when you are laying out a mitre cut/joint.

Both 45° and 90° angles are used to mark the workpiece.

Wonkee Donkee says, "A mitre cut is an angled cut, commonly at 45 degrees. Mitre cuts are used to produce mitre joints. Mitre joints are when two parts are joined to form a corner."

Marking

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. The folding square can be used to mark wood, tile, stone or any material that needs to be measured, marked and cut.

Folding squares are suitable for marking tasks as they have straight, rigid sides that are ideal for drawing lines and marking angles.

Saw guide

Carpenters square, folding squares, carpenter, carpentry, angles, woodwork, measuring, framing, right angle, stone masonry, building, construction, flooring, paving, DIYer. Not only is a folding square a layout tool, it can also function as a saw guide. This is to enable square, precise cuts.

Folding squares can be used as a saw guide on small or large pieces of material because of the variety of lengths they are available in.