FoamRush 2" x 18" x 20" Upholstery Foam High Density Firm Foam Soft Support (Chair Cushion Square Foam for Dinning Chairs, Wheelchair Seat Cushion Replacement) : Arts, Crafts & Sewing

Description

Fast, FREE Delivery is available to Prime members. To join, select "Try Amazon Prime and start saving today with Fast, FREE Delivery" below the Add to Cart button.Important:  Your credit card will NOT be charged when you start your free trial or if you cancel during the trial period. If you're happy with Amazon Prime, do nothing. At the end of the free trial, your membership will automatically upgrade to a monthly membership.FoamRush 2" x 18" x 20" Upholstery Foam High Density Firm Foam Soft Support (Chair Cushion Square Foam for Dinning Chairs, Wheelchair Seat Cushion Replacement)Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive. Store (Offline) Store name: City: State: Please select province Please select province Price: ($) Date of the price: 01 02 03 04 05 06 07 08 09 10 11 12 / 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 / Please sign in to provide feedback. Submit Feedback P.when("A", "a-modal", "ready").execute(function (A, modal) { var $ = A.$; var instance; var title = $("#modalHeader").val(); A.declarative("pricingFeedback-modal-button", "click", function (event) { if (!instance) { var options = { name: "pricingFeedback-modal-content", dataStrategy: "preload", }; instance = modal.create(event.$target, options); } instance.update({ "header": title, "width": "550" }).lock().show(); }); }); P.when('A', 'ready').execute(function (A) { var $ = A.$; var csrf = $("#aapiCsrfToken").val(); var productPrice = $("#priceValue").val(); var hostname = $("#absoluteUrlPrefix").val(); var customerId = $("#customerId").val(); var isCustomerRecognized = ($("#isCustomerLoggedIn").val() === 'true'); var isCurrentGlOnlineOnly = ($("#isCurrentGlOnlineOnly").val() === 'true'); var asin = $("#asin").val(); var marketplaceId = $("#marketplaceId").val(); var country = $("#countryCode").val(); var offlineStoresList = $("#offlineStoresList").val(); var statesList = $("#statesList").val(); var errorMessages = { errorNoRetailerType: $("#errorNoType").val(), errorBadPrice: $("#errorBadPrice").val(), errorBadPriceShipping: $("#errorBadPriceShipping").val(), errorInvalidUrl: $("#errorInvalidUrl").val(), errorSubmission: $("#errorSubmission").val(), errorEmptyFields: $("#errorEmptyFields").val(), thankFeedback: $("#thankFeedback").val() }; var feedbackFormContent = document.querySelector('#feedbackForm'); var signUpContainer = document.querySelector('#signUpForm'); var feedbackFormFinalStateContainer = document.querySelector('#feedbackFormFinalState'); var states = JSON.parse(statesList); var offlineStores = JSON.parse(offlineStoresList); var offlineStoresEnabled = !isCurrentGlOnlineOnly; var currentDate = getCurrentDay(); var currentMonth = getCurrentMonth(); var currentYear = getCurrentYear(); if (isCustomerRecognized) { feedbackFormContent.style['display'] = 'block'; feedbackFormFinalStateContainer.style['display'] = 'block'; signUpContainer.style['display'] = 'none'; var enableOnlineStoreRadio = document.querySelector('#pricingFeedback_onlineRadio'); var enableOfflineStoreRadio = document.querySelector('#pricingFeedback_offlineRadio'); var onlineStoreInputForm = document.querySelector('#pricingFeedback_onlineInput'); var offlineStoreInputForm = document.querySelector('#pricingFeedback_offlineInput'); var offlineStateSelect = document.querySelector('#offlineState'); var offlineStoreSelect = document.querySelector('#offlineStoreNameList'); var submitButton = document.querySelector('#pricingFeedback_submit'); var onlineUrl = document.querySelector('#onlineUrl'); var onlinePriceRaw = document.querySelector('#onlinePriceRaw'); var onlineShippingRaw = document.querySelector('#onlineShippingRaw'); var onlineDay = document.querySelector('#onlineDay'); var onlineMonth = document.querySelector('#onlineMonth'); var onlineYear = document.querySelector('#onlineYear'); var onlineCalendar = document.querySelector('#onlineCalendar'); var offlineRadioContainer = document.querySelector('#offlineRadioContainer'); var offlineStoreName = document.querySelector('#offlineStoreName'); var offlineCity = document.querySelector('#offlineCity'); var offlineState = document.querySelector('#offlineState'); var offlinePriceRaw = document.querySelector('#offlinePriceRaw'); var offlineDay = document.querySelector('#offlineDay'); var offlineMonth = document.querySelector('#offlineMonth'); var offlineYear = document.querySelector('#offlineYear'); var offlineCalendar = document.querySelector('#offlineCalendar'); var thankYouDiv = document.querySelector('#pricingFeedback_thank'); var errorDiv = document.querySelector('#pricingFeedback_error'); var loadingGifDiv = document.querySelector('#loading'); setCalenderOrderBasedOnCountry(country); setInitialStates( onlineMonth, currentMonth, offlineMonth, onlineDay, currentDate, offlineDay, onlineYear, currentYear, offlineYear, onlineStoreInputForm, offlineStoreInputForm, enableOfflineStoreRadio, enableOnlineStoreRadio, onlineCalendar, offlineCalendar ); createPermalinkContainer(asin, hostname); for (let state of states) { var option = document.createElement('option'); option.setAttribute('value', state['value']); option.innerText = state['name']; offlineStateSelect.appendChild(option); } for (let store of offlineStores) { var option = document.createElement('option'); option.setAttribute('value', store); offlineStoreSelect.appendChild(option); } $("#pricingFeedback_onlineRadio").click(function () { onlineStoreInputForm.style['display'] = 'table'; offlineStoreInputForm.style['display'] = 'none'; }); $("#pricingFeedback_offlineRadio").click(function () { onlineStoreInputForm.style['display'] = 'none'; offlineStoreInputForm.style['display'] = 'table'; }); if (!offlineStoresEnabled) { offlineRadioContainer.style['display'] = 'none'; offlineStoreInputForm.style['display'] = 'none'; } $("#pricingFeedback_submit").click(function () { var feedbackSubmitted = submitFeedback( customerId, marketplaceId, asin, productPrice, onlineStoreInputForm, offlineStoreInputForm, onlineUrl.value, onlinePriceRaw.value, onlineShippingRaw.value, onlineDay.value, onlineMonth.value, offlineStoreName.value, offlineCity.value, offlineState.value, offlinePriceRaw.value, offlineDay.value, offlineMonth.value, thankYouDiv, errorDiv, submitButton, loadingGifDiv, errorMessages ); if (feedbackSubmitted !== null && !feedbackSubmitted) { errorDiv.innerHTML = getErrorDiv(errorMessages.errorSubmission); } }); A.on("a:popover:beforeHide:pricingFeedback-modal-content", function (data) { resetModalToInitialState(currentMonth, currentDate, currentYear); }); } else { feedbackFormContent.style['display'] = 'none'; feedbackFormFinalStateContainer.style['display'] = 'none'; signUpContainer.style['display'] = 'block'; var authPortalLink = getAuthenticationPageURL(asin, hostname); $("#signUpForm").one("click", function () { window.location = encodeURI(authPortalLink); }); } function setCalenderOrderBasedOnCountry(country) { var monthSections = document.getElementsByClassName('monthSection'); var daySections = document.getElementsByClassName('daySection'); var yearSections = document.getElementsByClassName('yearSection'); var firstDelimiters = document.getElementsByClassName('firstDelimiter'); var secondDelimiters = document.getElementsByClassName('secondDelimiter'); if (country === 'US') { for (let i = 0; i < 2; i++) { (monthSections[i]).style['order'] = '-1'; (firstDelimiters[i]).style['order'] = '0'; (daySections[i]).style['order'] = '1'; (secondDelimiters[i]).style['order'] = '2'; (yearSections[i]).style['order'] = '3'; } } else if (country === 'JP') { for (let i = 0; i < 2; i++) { (yearSections[i]).style['order'] = '-1'; (secondDelimiters[i]).style['order'] = '0'; (monthSections[i]).style['order'] = '1'; (firstDelimiters[i]).style['order'] = '2'; (daySections[i]).style['order'] = '3'; } } else { for (let i = 0; i < 2; i++) { (daySections[i]).style['order'] = '-1'; (firstDelimiters[i]).style['order'] = '0'; (monthSections[i]).style['order'] = '1'; (secondDelimiters[i]).style['order'] = '2'; (yearSections[i]).style['order'] = '3'; } } } function createPermalinkContainer(asin, hostname) { var permalinkHref = getPermalink(hostname, asin); var permalinkContainer = document.querySelector('#permalink'); var permalink = document.createElement('a'); permalink.setAttribute('href', permalinkHref); permalink.innerText = permalinkHref; permalinkContainer.append(permalink); } function getPermalink(server, asin) { return server + '/dp/' + asin; } function triggerPricingFeedback( customerId, marketplaceId, asin, price, retailerType, retailerUrl, retailerName, retailerCity, retailerState, retailerPrice, retailerShipping, sampleDate ) { var dataCart = { ourPrice: parseInt(price), retailer: { type: retailerType, name: retailerName, city: retailerCity, state: retailerState, price: parseInt(retailerPrice), shippingCost: parseInt(retailerShipping), url: retailerUrl }, date: sampleDate + "T00:00:00.102Z" }; return new Promise((resolve, reject) => { A.$.ajax($("#aapiEndpoint").val() + "/api/marketplaces/" + marketplaceId + "/products/" + asin + "/feedback/pricing", { type: 'POST', headers: { 'Accept-Language': 'en-US', 'Accept': 'application/vnd.com.amazon.api+json; type="product.feedback.pricing/v1"', 'Content-Type': 'application/vnd.com.amazon.api+json; type="product.feedback.pricing.request/v1"', 'x-api-csrf-token': csrf }, data: JSON.stringify(dataCart), xhrFields: { withCredentials: true }, success: function (responseContent) { $("#pricingFeedback_thankcontent").innerText = "Success! " + responseContent.toString(); resolve(); }, error: function (err) { $("#pricingFeedback_thankcontent").innerText = "Error! " + err.toString(); reject(); } }) }) } function getAuthenticationPageURL(asin, hostname) { return hostname + '/ap/signin?_encoding=UTF8&openid.assoc_handle=usflex&openid.claimed_id=http://specs.openid.net/auth/2.0/identifier_select&openid.identity=http://specs.openid.net/auth/2.0/identifier_select&openid.mode=checkid_setup&openid.ns=http://specs.openid.net/auth/2.0&openid.ns.pape=http://specs.openid.net/extensions/pape/1.0&openid.pape.max_auth_age=0&openid.return_to=https://www.amazon.com/dp//'; } function getCurrentDay() { var date = new Date(); return date.getDate().toString(); } function getCurrentMonth() { var date = new Date(); return (date.getMonth() + 1).toString(); } function getCurrentYear() { var date = new Date(); return date.getFullYear().toString(); } function setInitialStates(onlineMonth, currentMonth, offlineMonth, onlineDay, currentDate, offlineDay, onlineYear, currentYear, offlineYear, onlineStoreInputForm, offlineStoreInputForm, enableOfflineStoreRadio, enableOnlineStoreRadio, onlineCalendar, offlineCalendar) { onlineMonth.defaultValue = currentMonth; offlineMonth.defaultValue = currentMonth; onlineDay.defaultValue = currentDate; offlineDay.defaultValue = currentDate; onlineYear.defaultValue = currentYear; offlineYear.defaultValue = currentYear; var onlineMonthOption = document.querySelector('#onlineMonthOptionDefault'); onlineMonthOption.innerText = currentMonth; var onlineMonthPrompt = document.querySelector('#onlineMonthPrompt'); onlineMonthPrompt.innerText = currentMonth; var offlineMonthOption = document.querySelector('#offlineMonthOptionDefault'); offlineMonthOption.innerText = currentMonth; var offlineMonthPrompt = document.querySelector('#offlineMonthPrompt'); offlineMonthPrompt.innerText = currentMonth; var onlineDateOption = document.querySelector('#onlineDateOptionDefault'); onlineDateOption.innerText = currentDate; var onlineDayPrompt = document.querySelector('#onlineDatePrompt'); onlineDayPrompt.innerText = currentDate; var offlineDateOption = document.querySelector('#offlineDateOptionDefault'); offlineDateOption.innerText = currentDate; var offlineDayPrompt = document.querySelector('#offlineDatePrompt'); offlineDayPrompt.innerText = currentDate; var onlineYearOption = document.querySelector('#onlineYearOptionDefault'); onlineYearOption.setAttribute('href', currentYear); onlineYearOption.innerText = currentYear; var onlineYearPrompt = document.querySelector('#onlineYearPrompt'); onlineYearPrompt.innerText = currentYear; var offlineYearOption = document.querySelector('#offlineYearOptionDefault'); offlineYearOption.setAttribute('href', currentYear); offlineYearOption.innerText = currentYear; var offlineYearPrompt = document.querySelector('#offlineYearPrompt'); offlineYearPrompt.innerText = currentYear; if (onlineMonth.children && offlineMonth.children && onlineDay.children && offlineDay.children) { onlineMonth.children[currentMonth].setAttribute('selected', currentMonth); offlineMonth.children[currentMonth].setAttribute('selected', currentMonth); onlineDay.children[currentDate].setAttribute('selected', currentDate); offlineDay.children[currentDate].setAttribute('selected', currentDate); } onlineStoreInputForm.style['display'] = 'none'; offlineStoreInputForm.style['display'] = 'none'; enableOfflineStoreRadio.checked = false; enableOnlineStoreRadio.checked = false; if (onlineCalendar.style && offlineCalendar.style) { onlineCalendar.style['display'] = 'flex'; offlineCalendar.style['display'] = 'flex'; } } function submitFeedback( customerId, marketplaceId, asin, price, onlineStoreInputForm, offlineStoreInputForm, onlineUrl, onlinePriceRaw, onlineShippingRaw, onlineDay, onlineMonth, offlineStoreName, offlineCity, offlineState, offlinePriceRaw, offlineDay, offlineMonth, thankYouDiv, errorDiv, submitButton, loadingGifDiv, errorMessages ) { errorDiv.innerHTML = ''; let cleanRetailerType, cleanRetailerUrl, cleanRetailerName, cleanRetailerCity, cleanRetailerState, cleanRetailerPrice, cleanRetailerShipping, cleanSampleDate; var currentYear = getCurrentYear(); if (onlineStoreInputForm.style['display'] === 'table') { var onlineValidity = validateOnlineInputs(onlineUrl, onlinePriceRaw, onlineShippingRaw, errorMessages); if (onlineValidity.valid) { cleanRetailerType = 'ONLINE'; cleanRetailerUrl = truncate(trim(onlineUrl), 300); cleanRetailerPrice = trim(onlinePriceRaw); cleanRetailerShipping = trim(onlineShippingRaw); if (!cleanRetailerShipping) { cleanRetailerShipping = '0'; } cleanSampleDate = formatDate( currentYear, onlineDay ? onlineDay : getCurrentDay(), onlineMonth ? onlineMonth : getCurrentMonth() ); } else { if (onlineValidity.error) { errorDiv.innerHTML = getErrorDiv(onlineValidity.error); } return null; } } else if (offlineStoreInputForm.style['display'] === 'table') { var offlineValidity = validateOfflineInputs( offlineStoreName, offlineCity, offlineState, offlinePriceRaw, errorMessages ); if (offlineValidity.valid) { cleanRetailerType = 'OFFLINE'; cleanRetailerName = truncate(trim(offlineStoreName), 100); cleanRetailerCity = truncate(trim(offlineCity), 100); cleanRetailerState = truncate(trim(offlineState), 100); cleanRetailerPrice = trim(offlinePriceRaw); cleanRetailerShipping = '0'; cleanSampleDate = formatDate( currentYear, offlineDay ? offlineDay : getCurrentDay(), offlineMonth ? offlineMonth : getCurrentMonth() ); } else { if (offlineValidity.error) { errorDiv.innerHTML = getErrorDiv(offlineValidity.error); } return null; } } else { errorDiv.innerHTML = getErrorDiv(errorMessages.errorNoRetailerType); return null; } loadingGifDiv.innerHTML = getLoadingGifDiv(); if (price) price = parseFloat(price); return triggerPricingFeedback( customerId, marketplaceId, asin, price, cleanRetailerType, cleanRetailerUrl, cleanRetailerName, cleanRetailerCity, cleanRetailerState, parseFloat(cleanRetailerPrice), parseFloat(cleanRetailerShipping), cleanSampleDate ) .then(response => { errorDiv.innerHTML = ''; thankYouDiv.innerHTML = getThankYouDiv(errorMessages.thankFeedback); submitButton.style.display = 'none'; return response; }) .catch(err => { errorDiv.innerHTML = getErrorDiv(errorMessages.errorSubmission); return null; }); } function validateOnlineInputs(url, onlinePrice, onlineShipping, errorMessages) { if (isEmptyValue(url) || isEmptyValue(onlinePrice)) { return { valid: false, error: errorMessages.errorEmptyFields }; } else if (!isValidUrl(url)) { return { valid: false, error: errorMessages.errorInvalidUrl }; } else if (!isNumericPrice(onlinePrice) || (!isEmptyValue(onlineShipping) && !isNumericPrice(onlineShipping))) { return { valid: false, error: errorMessages.errorBadPriceShipping }; } return { valid: true, error: null }; } function validateOfflineInputs(offlineStoreName, offlineCity, offlineState, offlinePrice, errorMessages) { if ( isEmptyValue(offlineStoreName) || isEmptyValue(offlineCity) || isEmptyValue(offlineState) || isEmptyValue(offlinePrice) ) { return { valid: false, error: errorMessages.errorEmptyFields }; } else if (!isNumericPrice(offlinePrice)) { return { valid: false, error: errorMessages.errorBadPrice }; } return { valid: true, error: null }; } function getErrorDiv(errorMsg) { return ( '\n' + ' ' + errorMsg + '\n' + ' ' ); } function getThankYouDiv(thankMsg) { return ( '' + '' + thankMsg + '\n' + '' ); } function getLoadingGifDiv() { return ''; } function isValidUrl(url) { if (!url) { return false; } var encodedUrl = encodeURI(url); return encodedUrl.match( /^(https?:\/\/)?(([a-z0-9-]|%[A-F0-9]{2})+\.)+(([a-z]|%[A-F0-9]{2})([a-z0-9]|%[A-F0-9]{2})*)(:[0-9]+)?(\/[a-z0-9;:,~!+#@&=%\/$\.?_-]+)?$/ ); } function isNumericPrice(price) { if (!price) { return false; } return price.match(/^([0-9]+\.?[0-9]*)$|^([0-9]*\.[0-9]+)$/); } function isEmptyValue(input) { return !input || input.length === 0 || input.match(/^\s*$/); } function truncate(input, length) { if (!input) { return ''; } else { return input.substr(0, length); } } function formatDate(year, date, month) { return year + '-' + month + '-' + date; } function trim(input) { if (!input) { return ''; } else { return input.trim(); } } function resetModalToInitialState(currentMonth, currentDate, currentYear) { var enableOnlineStoreRadio = document.querySelector('#pricingFeedback_onlineRadio'); var enableOfflineStoreRadio = document.querySelector('#pricingFeedback_offlineRadio'); var onlineStoreInputForm = document.querySelector('#pricingFeedback_onlineInput'); var offlineStoreInputForm = document.querySelector('#pricingFeedback_offlineInput'); var onlineUrl = document.querySelector('#onlineUrl'); var onlinePriceRaw = document.querySelector('#onlinePriceRaw'); var onlineShippingRaw = document.querySelector('#onlineShippingRaw'); var onlineDay = document.querySelector('#onlineDay'); var onlineMonth = document.querySelector('#onlineMonth'); var onlineYear = document.querySelector('#onlineYear'); var onlineCalendar = document.querySelector('#onlineCalendar'); var offlineStoreName = document.querySelector('#offlineStoreName'); var offlineCity = document.querySelector('#offlineCity'); var offlineState = document.querySelector('#offlineState'); var offlinePriceRaw = document.querySelector('#offlinePriceRaw'); var offlineDay = document.querySelector('#offlineDay'); var offlineMonth = document.querySelector('#offlineMonth'); var offlineYear = document.querySelector('#offlineYear'); var offlineCalendar = document.querySelector('#offlineCalendar'); var thankYouDiv = document.querySelector('#pricingFeedback_thank'); var errorDiv = document.querySelector('#pricingFeedback_error'); var submitButton = document.querySelector('#pricingFeedback_submit'); var loadingGifDiv = document.querySelector('#loading'); var stateDefaultOption = document.querySelector('#stateDefaultOption'); var stateDefaultPrompt = document.querySelector('#stateDefaultPrompt'); if (thankYouDiv) { thankYouDiv.innerHTML = ''; } if (errorDiv) { errorDiv.innerHTML = ''; } if (loadingGifDiv) { loadingGifDiv.innerHTML = ''; } if (submitButton) { submitButton.style.display = 'block'; } onlineUrl.value = ''; onlinePriceRaw.value = ''; onlineShippingRaw.value = ''; offlineStoreName.value = ''; offlineCity.value = ''; offlineState.value = ''; offlinePriceRaw.value = ''; stateDefaultOption.innerHTML = $("#selectProvince").val(); stateDefaultPrompt.innerHTML = $("#selectProvince").val(); setInitialStates( onlineMonth, currentMonth, offlineMonth, onlineDay, currentDate, offlineDay, onlineYear, currentYear, offlineYear, onlineStoreInputForm, offlineStoreInputForm, enableOfflineStoreRadio, enableOnlineStoreRadio, onlineCalendar, offlineCalendar ); } }); Product Description High density foam has a compression rate of 44lbs. It features the perfect amount of cushioning and stiffness. Its soft but still holds its firmness and support for an individual to sit on it without compressing the foam too much. Compression = firmness compression (not density) is what determines firmness. If you dont want a cushion thats hard as a rock or a mattress that sinks when you sit on it, you have to check the compression or ild number. Compression means the number of pounds necessary to compress a piece of foam 25% and still bounce back to the original thickness. For example, a 4" thick piece of foam that requires 33 lbs. To pack it down 1" and have it return to its full 4" thickness has a 33 lb. Compression rating or (ild) -indention load deflection. - all foam sheets are sold per sheet - not per yard. Do not open with a box cutter. Use a ball point pen or a pencil. Start by making a little incision and break it from there - durability : will last 7 to 10 years Medium density foam is used for firmness yet relax able cushion. It has high quality compression and material to keep it lasting for longer periods of time even when harsh weight is applied. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.

Product Overview