diff --git a/modules/alkimiBidAdapter.js b/modules/alkimiBidAdapter.js
index fe5a050f436..a96b245d786 100644
--- a/modules/alkimiBidAdapter.js
+++ b/modules/alkimiBidAdapter.js
@@ -20,18 +20,20 @@ export const spec = {
     let bidIds = [];
     let eids;
     validBidRequests.forEach(bidRequest => {
-      let sizes = prepareSizes(bidRequest.sizes)
+      let formatType = getFormatType(bidRequest)
+      let alkimiSizes = prepareAlkimiSizes(bidRequest.sizes)
 
       if (bidRequest.userIdAsEids) {
         eids = eids || bidRequest.userIdAsEids
       }
+
       bids.push({
         token: bidRequest.params.token,
         pos: bidRequest.params.pos,
-        bidFloor: bidRequest.params.bidFloor,
-        width: sizes[0].width,
-        height: sizes[0].height,
-        impMediaType: getFormatType(bidRequest),
+        bidFloor: getBidFloor(bidRequest, formatType),
+        width: alkimiSizes[0].width,
+        height: alkimiSizes[0].height,
+        impMediaType: formatType,
         adUnitCode: bidRequest.adUnitCode
       })
       bidIds.push(bidRequest.bidId)
@@ -128,10 +130,25 @@ export const spec = {
   }
 }
 
-function prepareSizes(sizes) {
+function prepareAlkimiSizes(sizes) {
   return sizes && sizes.map(size => ({ width: size[0], height: size[1] }));
 }
 
+function prepareBidFloorSize(sizes) {
+  return sizes && sizes.length === 1 ? sizes[0] : '*';
+}
+
+function getBidFloor(bidRequest, formatType) {
+  if (typeof bidRequest.getFloor === 'function') {
+    const bidFloorSize = prepareBidFloorSize(bidRequest.sizes)
+    const floor = bidRequest.getFloor({ currency: 'USD', mediaType: formatType.toLowerCase(), size: bidFloorSize });
+    if (floor && !isNaN(floor.floor) && (floor.currency === 'USD')) {
+      return floor.floor;
+    }
+  }
+  return bidRequest.params.bidFloor;
+}
+
 const getFormatType = bidRequest => {
   if (deepAccess(bidRequest, 'mediaTypes.banner')) return 'Banner'
   if (deepAccess(bidRequest, 'mediaTypes.video')) return 'Video'
diff --git a/test/spec/modules/alkimiBidAdapter_spec.js b/test/spec/modules/alkimiBidAdapter_spec.js
index 1ae9bb56df4..92e5d28f42a 100644
--- a/test/spec/modules/alkimiBidAdapter_spec.js
+++ b/test/spec/modules/alkimiBidAdapter_spec.js
@@ -108,7 +108,7 @@ describe('alkimiBidAdapter', function () {
 
   describe('buildRequests', function () {
     let bidRequests = [REQUEST]
-    const bidderRequest = spec.buildRequests(bidRequests, {
+    let requestData = {
       auctionId: '123',
       refererInfo: {
         page: 'http://test.com/path.html'
@@ -119,7 +119,8 @@ describe('alkimiBidAdapter', function () {
         gdprApplies: true
       },
       uspConsent: 'uspConsent'
-    })
+    }
+    const bidderRequest = spec.buildRequests(bidRequests, requestData)
 
     it('should return a properly formatted request with eids defined', function () {
       expect(bidderRequest.data.eids).to.deep.equal(REQUEST.userIdAsEids)
@@ -138,7 +139,7 @@ describe('alkimiBidAdapter', function () {
       expect(bidderRequest.method).to.equal('POST')
       expect(bidderRequest.data.requestId).to.equal('123')
       expect(bidderRequest.data.referer).to.equal('http://test.com/path.html')
-      expect(bidderRequest.data.schain).to.deep.contains({ver: '1.0', complete: 1, nodes: [{asi: 'alkimi-onboarding.com', sid: '00001', hp: 1}]})
+      expect(bidderRequest.data.schain).to.deep.contains({ ver: '1.0', complete: 1, nodes: [{ asi: 'alkimi-onboarding.com', sid: '00001', hp: 1 }] })
       expect(bidderRequest.data.signRequest.bids).to.deep.contains({ token: 'e64782a4-8e68-4c38-965b-80ccf115d46f', pos: 7, bidFloor: 0.1, width: 300, height: 250, impMediaType: 'Banner', adUnitCode: 'bannerAdUnitCode' })
       expect(bidderRequest.data.signRequest.randomUUID).to.equal(undefined)
       expect(bidderRequest.data.bidIds).to.deep.contains('456')
@@ -147,6 +148,17 @@ describe('alkimiBidAdapter', function () {
       expect(bidderRequest.options.contentType).to.equal('application/json')
       expect(bidderRequest.url).to.equal(ENDPOINT)
     })
+
+    it('sends bidFloor when configured', () => {
+      const requestWithFloor = Object.assign({}, REQUEST);
+      requestWithFloor.getFloor = function (arg) {
+        if (arg.currency === 'USD' && arg.mediaType === 'banner' && JSON.stringify(arg.size) === JSON.stringify([300, 250])) {
+          return { currency: 'USD', floor: 0.3 }
+        }
+      }
+      const bidderRequestFloor = spec.buildRequests([requestWithFloor], requestData);
+      expect(bidderRequestFloor.data.signRequest.bids[0].bidFloor).to.be.equal(0.3);
+    });
   })
 
   describe('interpretResponse', function () {