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Rebar spacing is calculated so that each square foot of reinforced area is sufficient for its load and can be calculated using a rebar spacing calculator. Taking grade, size, spacing and location into consideration, calc... More »

Some popular online math calculators are MathWay.com, WolphramAlpha.com and Calculator.net. Each of these include tools to help you solve problems in basic math, algebra, geometry, trigonometry, calculus and even chemist... More »

Online withholding calculators are available on many payroll and tax service websites, including ADP, TurboTax and Kiplinger. The Internal Revenue Service also provides a withholding calculator on the official IRS websit... More »

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A generator sizing calculator works out the size of generator needed for a particular load. The calculator typically asks about the type of appliances in use or the power demand and shows a suitable generator. Calculatin... More »

One way to build a pond is to dig a hole, install electrical lines and water pipes, line the hole with rebar and concrete, coat it with pond sealant, and install a water pump. This procedure usually takes about one week ... More »

Build a backyard fire pit using concrete blocks or bricks, rebar stake and shovel. Mark a circle in the area with the stake, string and shovel, and dig a small area for the wood. Complete the pit with rocks, bricks or bl... More »

A wheelbarrow generally consists of one wheel and two handles that are used to push a barrel-type container with a small load from one location to another. Replacement parts include the wheel, inner tube for the wheel an... More »