Concrete Estimators

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=82 BGCOLOR="#006600" TEXT="#F7F7FF"> <div> <FONT SIZE="6" COLOR="#FFFFFF" FACE="Rockwell" ><B>Eastford Building Supply</B></FONT><B>     |     </B><A HREF="index.htm" TARGET="_top" TITLE="Eastford Building Supply"><U><B>home</B></U></A><B>      </B>back to<B>  </B><A HREF="id5.htm" TARGET="_top" TITLE="References and Tools"><U><B>References and Tools</B></U></A></div> <div> <A HREF="id42.htm" TARGET="_top" TITLE="Lumber Dimensions"><U>Lumber Dimensions</U></A>   |   <A HREF="id43.htm" TARGET="_top" TITLE="Nail Size and Weight Tables"><U>Nail Size and Weight Tables</U></A>   |   <A HREF="id56.htm" TARGET="_top" TITLE="Paint Estimator"><U>Paint Estimator</U></A>   |   <B>Concrete Estimators</B>   |   <A HREF="id51.htm" TARGET="_top" TITLE="Common Moulding Profiles"><U>Common Moulding Profiles</U></A>   |   <A HREF="id39.htm" TARGET="_top" TITLE="Design and Project Guides"><U>Design and Project Guides</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#FFCC66" TEXT="#080000"> <div> The concrete estimators will help you determine the amount of concrete you will need for a flat pour, and the amount of concrete needed in a column or sonatube.  Just enter the details in the spaces provided and let the computer do the rest!</div> </td> <td valign="top" height=398 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>Concrete Estimators</I></div> <div>  <HTML> <SCRIPT LANGUAGE="JavaScript"> function calcConc(form) { var concAmt = 0; for (var i = 1; i <= 3; i++) { var parsecheck = "" + parseFloat(form.elements[i].value); if (parseFloat(form.elements[i].value) < 0 || parseFloat(form.elements[i].value) == 0 || parsecheck == "NaN") { window.alert("Please enter a positive number in each of the " + "input fields."); return false; } } if (form.elements[5].checked == true) concAmt = form.elements[1].value * form.elements[2].value * (form.elements[3].value / 12.0) / 27; else concAmt = form.elements[1].value * form.elements[2].value * form.elements[3].value / 27; form.elements[7].value = formatvalue(concAmt,7); return true; } function calcCol(form) { var concAmt = 0; for (var i = 1; i <= 2; i++) { var parsecheck = "" + parseFloat(form.elements[i].value); if (parseFloat(form.elements[i].value) < 0 || parseFloat(form.elements[i].value) == 0 || parsecheck == "NaN") { window.alert("Please enter a positive number in each of the " + "input fields."); return false; } } var radius = form.elements[2].value / 24.0; concAmt = form.elements[1].value * radius * radius * Math.PI / 27; form.elements[4].value = formatvalue(concAmt,7); return true; } function formatvalue(input, rsize) { var invalid = "**************************"; var nines = "999999999999999999999999"; var strin = "" + input; var fltin = parseFloat(strin); if (strin.indexOf("e") != -1 || fltin > parseFloat(nines.substring(0,rsize)+".4")) return invalid.substring(0, rsize); if (strin.length <= rsize) return strin; var rounded = "" + (fltin + (fltin - parseFloat(strin.substring(0, rsize)))); return rounded.substring(0, rsize); } function clearform(form,count,lastElement) { for (var i = 1; i <= count; i++) form.elements[i].value = ""; form.elements[lastElement].value = ""; } </SCRIPT> <HR> <HR> <CENTER> <FORM> <TABLE border=4> <TR> <TD COLSPAN=4 ALIGN=CENTER VALIGN=MIDDLE><H2>Concrete Volume</H2></TD> </TR><TR> <TD ALIGN=CENTER>Width<BR>(Feet)</TD> <TD ALIGN=CENTER>Length<BR>(Feet)</TD> <TD ALIGN=CENTER>Thickness</TD> <TD ALIGN=CENTER><INPUT TYPE="button" VALUE="Clear" onclick="clearform(this.form,3,7)"></TD> </TR><TR> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val1 SIZE=7></TD> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val2 SIZE=7></TD> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val3 SIZE=7></TD> <TD><INPUT TYPE="button" VALUE="Calculate" onclick="calcConc(this.form)"></TD> </TR> <TR> <TD></TD> <TD></TD> <TD><INPUT TYPE="radio" NAME="InchesFeet" VALUE="inches" CHECKED>Inches<BR> <INPUT TYPE="radio" NAME="InchesFeet" VALUE="feet">Feet</TD> </TR> <TR> </TR> <TR> <TD COLSPAN=3 ALIGN=CENTER>Cubic Yards Required:</TD> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val4 SIZE=7></TD> </TR> </TABLE> </FORM> </CENTER> <CENTER> <P>Please enter the width, length, and thickness of your pour, indicate whether you are measuring the thickness in feet or inches, then click on the "Calculate" button. This will estimate the number of cubic yards of concrete that will be required. </CENTER> <HR> <HR> <CENTER> <FORM> <TABLE border=4> <TR> <TD COLSPAN=3 ALIGN=CENTER VALIGN=MIDDLE><H2>Column</H2></TD> </TR><TR> <TD ALIGN=CENTER>Height<BR>(Feet)</TD> <TD ALIGN=CENTER>Diameter<BR>(Inches)</TD> <TD ALIGN=CENTER><INPUT TYPE="button" VALUE="Clear" onclick="clearform(this.form,2,4)"></TD> </TR><TR> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val1 SIZE=7></TD> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val2 SIZE=7></TD> <TD><INPUT TYPE="button" VALUE="Calculate" onclick="calcCol(this.form)"></TD> </TR> <TR> </TR> <TR> <TD COLSPAN=2 ALIGN=CENTER>Cubic Yards Required:</TD> <TD ALIGN=CENTER><INPUT TYPE=TEXT NAME=val4 SIZE=7></TD> </TR> </TABLE> </FORM> </CENTER> <CENTER> <P>Please enter the height and diameter of the column, then click on the "Calculate" button. This will estimate the number of cubic yards required. </CENTER> </BODY> </HTML>  </div> <bR> <bR> <bR> <bR> <bR> </td> </tr></table></body>