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, and 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 »