content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
  <submissionType>144</submissionType>
  <filerInfo>
  <filer>
  <filerCredentials>
  <cik>0001688282</cik>
  <ccc>XXXXXXXX</ccc>
  </filerCredentials>
  </filer>
  <liveTestFlag>LIVE</liveTestFlag>
  
  
  
  </filerInfo>
  </headerData>
  <formData>
  <issuerInfo>
  <issuerCik>0001839839</issuerCik>
  <issuerName>Janus International Group, Inc.</issuerName>
  <secFileNumber>001-40456</secFileNumber>
  <issuerAddress>
  <com:street1>135 JANUS INTERNATIONAL BLVD.</com:street1>
  <com:city>TEMPLE</com:city>
  <com:stateOrCountry>GA</com:stateOrCountry>
  <com:zipCode>30179</com:zipCode>
  </issuerAddress>
  <issuerContactPhone>(866) 562-2580</issuerContactPhone>
  <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CLEARLAKE CAPITAL GROUP, L.P.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
  <relationshipsToIssuer>
  <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
  </relationshipsToIssuer>
  </issuerInfo>
  <securitiesInformation>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <brokerOrMarketmakerDetails>
  <name>Jefferies LLC</name>
  <address>
  <com:street1>520 Madison Avenue</com:street1>
  <com:city>New York</com:city>
  <com:stateOrCountry>NY</com:stateOrCountry>
  <com:zipCode>10022</com:zipCode>
  </address>
  </brokerOrMarketmakerDetails>
  <noOfUnitsSold>26548</noOfUnitsSold>
  <aggregateMarketValue>314638.93</aggregateMarketValue>
  <noOfUnitsOutstanding>146828418</noOfUnitsOutstanding>
  <approxSaleDate>12/15/2023</approxSaleDate>
  <securitiesExchangeName>NYSE</securitiesExchangeName>
  </securitiesInformation>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>06/07/2023</acquiredDate>
  <natureOfAcquisitionTransaction>Vested RSUs</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>26548</amountOfSecuritiesAcquired>
  <paymentDate>06/07/2023</paymentDate>
  <natureOfPayment>Equity compensation for services rendered by director representatives</natureOfPayment>
  </securitiesToBeSold>
  <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>Clearlake Capital Group, L.P. (see Remarks)</name>
  <address>
  <com:street1>233 WILSHIRE BLVD., SUITE 800</com:street1>
  <com:city>SANTA MONICA</com:city>
  <com:stateOrCountry>CA</com:stateOrCountry>
  <com:zipCode>90401</com:zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <saleDate>12/14/2023</saleDate>
  <amountOfSecuritiesSold>23044110</amountOfSecuritiesSold>
  <grossProceeds>230620844.06</grossProceeds>
  </securitiesSoldInPast3Months>
  <remarks>The securities sold on December 14, 2023 were sold in "at-the-market" offerings as defined in Rule 415 under the Securities Act of 1933, as amended, and thus are excluded from the Rule 144(e) trading volume limitation calculation pursuant to Rule 144(e)(3)(vii)(A).</remarks>
  <noticeSignature>
  <noticeDate>12/15/2023</noticeDate>
  <signature>/s/ John F. Cannon, as Attorney-in-Fact for Clearlake Capital Group, L.P.</signature>
  </noticeSignature>
  </formData>
  </edgarSubmission>
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text: 144
  0001688282
  XXXXXXXX
  LIVE
  0001839839
  Janus International Group, Inc.
  001-40456
  135 JANUS INTERNATIONAL BLVD.
  TEMPLE
  GA
  30179
  (866) 562-2580
  CLEARLAKE CAPITAL GROUP, L.P.
  10% Stockholder
  Common Stock
  Jefferies LLC
  520 Madison Avenue
  New York
  NY
  10022
  26548
  314638.93
  146828418
  12/15/2023
  NYSE
  Common Stock
  06/07/2023
  Vested RSUs
  Issuer
  N
  26548
  06/07/2023
  Equity compensation for services rendered by director representatives
  N
  Clearlake Capital Group, L.P. (see Remarks)
  233 WILSHIRE BLVD., SUITE 800
  SANTA MONICA
  CA
  90401
  Common Stock
  12/14/2023
  23044110
  230620844.06
  The securities sold on December 14, 2023 were sold in "at-the-market" offerings as defined in Rule 415 under the Securities Act of 1933, as amended, and thus are excluded from the Rule 144(e) trading volume limitation calculation pursuant to Rule 144(e)(3)(vii)(A).
  12/15/2023
  /s/ John F. Cannon, as Attorney-in-Fact for Clearlake Capital Group, L.P.