<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hey Bill, <div><br></div><div>We have a portable sprung floor. I’ve never seen actual specs, but I have seen a WIDE range of “springiness.” I did find this on one of the vendor sites for the type of foam they pair with standard wafer board.</div><div><br></div><div>Hope this helps.</div><div><br></div><div>Amile Wilson</div><div>Stage Directors & Choreographers Society</div><div>323-362-2787</div><div><br></div><div><br></div><div><br></div><div><h2 data-v-9e45b7d2="" class="section-header" style="box-sizing: border-box; border: 0px; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; margin: 0px 0px 20px; padding: 0px; font-weight: 400; color: rgb(36, 40, 94); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 24px; line-height: 1.2; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);">Specifications</h2><div data-v-9e45b7d2="" class="vue-styled-table" style="box-sizing: border-box; border: 0px; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; margin: 0px 0px 5px; padding: 0px; background-color: rgb(255, 255, 255); color: rgb(0, 0, 0); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 15px; font-variant-ligatures: normal; orphans: 2; widows: 2;"><table style="border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; border-collapse: collapse; border-spacing: 0px; width: 595.5px;"><tbody><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; background-color: rgb(233, 233, 239);"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Sale Unit:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">EA</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000;"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Width:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">24", 36", 48"</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; background-color: rgb(233, 233, 239);"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Color:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">White</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000;"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Brand:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">CushionRite</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; background-color: rgb(233, 233, 239);"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Foam Density:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">2.8 pounds per cubic foot</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000;"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Foam IFD:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">80 pounds</td></tr><tr data-v-9e45b7d2="" style="box-sizing: border-box; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; background-color: rgb(219, 219, 225);"><th data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; text-align: left; vertical-align: middle; font-size: 16px; color: rgb(0, 0, 0); line-height: 1.2; font-weight: 400; text-transform: capitalize;">Foam Material:</th><td data-v-9e45b7d2="" style="box-sizing: border-box; border: none; --tw-shadow: 0 0 #0000; --tw-ring-inset: var(--tw-empty, ); --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgba(59, 130, 246, 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; padding: 10px 15px; vertical-align: middle; font-size: 16px; line-height: 1.2; color: rgb(90, 90, 90);">Polyurethane</td></tr></tbody></table></div><div><br><blockquote type="cite"><div>On Jan 17, 2023, at 11:22 AM, Bill Potter via Stagecraft <stagecraft@theatrical.net> wrote:</div><br class="Apple-interchange-newline"><div>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">
Howdy Listers,
<div><br>
</div>
<div>Without consulting me, our school purchased a “portable” sprung floor to cover the stage of our 1951 stageatorium. Now we’re having to deal with all the consequences of how “everybody else” uses the space.</div>
<div><br>
</div>
<div>My actual question is, are there any actual guidelines/specs for measuring the give or spring of a floor used for ballet? I can find all kinds on info on sprung floors, but no actual specs on how much “give” is appropriate. The happy medium between too
hard and too springy seems to be “just right”. Hard to measure that...</div>
<div><br>
</div>
<div>Thanks,</div>
<br>
<div>Bill Potter<br>
Arts Technical Director<br>
St. Paul’s School<br>
Concord NH<br>
603-229-4696 </div>
<br>
</div>
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