what size wood for concrete forms

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As an example, a 1X4 pine board is usually stiff enough to support a 4 inch (10.2 cm) concreteplacement (pour), where an 8 to 12 inch (20.3 to 30.5 cm) slab thickness will require 2 inch (5.1 cm) dimension lumberof a width equal to the height. To insure ease of forming, select straight, flat lumberwith minimal knots at the lumberyard. 4

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  • What kind of wood is used to make concrete forms?

  • Straight, flat lumber without knotholes provides the best concrete forms. Thick concrete pours of greater than 8 inches may require a second round of stakes set a couple of feet behind the concrete form with kickers nailed to the bottom of the rear stakes and the top of the form stakes to provide additional stability.

  • Why choose wood for concrete framing?

  • When it comes to pouring concrete, everything starts with the forms. Ensuring your concrete forms are both accurate and strong will go a long way toward a finished project that will stand the test of time. For ease of use and versatility, it’s hard to beat wood as the concrete framing material of choice.

  • What size lumber do I need for a concrete slab?

  • As an example, a 1X4 pine board is usually stiff enough to support a 4 inch (10.2 cm) concrete placement (pour), where an 8 to 12 inch (20.3 to 30.5 cm) slab thickness will require 2 inch (5.1 cm) dimension lumber of a width equal to the height. To insure ease of forming, select straight, flat lumber with minimal knots at the lumberyard.

  • Can plywood be used for concrete-forming?

  • Nearly all types of plywood panels can be used in concrete-forming, from common roof and wall sheathing to sanded panels. APA Plyform panels, however, are specifically designed to withstand the wear-and-tear of repeated concrete pours, as well as to provide a smoother and more consistent finish to the concrete鈥檚 surface.

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