<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span>Scott,</span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span>You should not make the same mistake I made, 8 feet is not enough. Go with at least 9 feet inside. </span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span>I use a 8,000lb warren winch with a single pully block and that is perfect. I have to build a new gantry because I built mine with stuff I had instead of buying proper material. I am building A frames with 2in square 1/4 wall. Then a
10in I beam across the top with a 10 foot span.</span></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span>Hank</span></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> On Monday, March 31, 2014 2:09:55 PM, "swaters@waters-ks.com" <swaters@waters-ks.com> wrote:<br> </font> </div> <div class="y_msg_container"><div id="yiv9118047709"><div><span style="color: rgb(0, 0, 0); font-family: Verdana; font-size: 10pt;"><div>Hey guys,</div>
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<div>I am wanting to build a gantry lift in my shop so I can put my sub on the trailer and take it back off the trailer without having to pay to rent a telehandler. It would need to hold the sub (4500 lbs) plus a little extra. I was thinking of building it out of I beams. I know nothing about structural design with I beams but I believe it should be pretty easy. The gantry lift would be 9' tall and 8' wide. What size I beams should I use?</div>
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<div>Also what is the best kind of winch or block and tackle device to use that is inexpensive?</div>
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<div>Thanks for the help,</div>
<div>Scott Waters</div></span></div></div><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div> </div></body></html>