More than 900,000 Rohingya refugees are living in extremely congested camps in Cox’s Bazar, Bangladesh. Since their arrival in Bangladesh, they have been dependent on humanitarian aid for their survival, including food, core-relief items, shelter and other basic services. Having provided households with initial shelter kits upon arrival, UNHCR is now supporting families providing the necessary materials to maintain their shelters and cover basic needs. From January to the end of August 2021, UNHCR distributed Upgraded Shelter Kits (USKs) consisting of muli-type2 and borak-type* bamboo poles, rope, plastic tarpaulins, sandbags and toolkits to 90,569 families. UNHCR conducts Post Distribution Monitoring (PDM) to collect refugees’ feedback on the quality, sufficiency, utilization, and effectiveness of the assistance we provide, which helps improve and adapt the services as per the refugees’ needs. For this PDM exercise, a mixed methodology incorporating both qualitative and quantitative methods was used. By qualitative method, FGD (Focus Group Discussion) disaggregated by gender and age were conducted with recipients of shelter material in 16 camps. 23 groups discussions for shelter material recipients took place between 03 and 20 October 2021. The PDM survey found that shelter materials distributed by UNHCR and partners generally met the declared household needs and the minimum quality standards as approved by the Bangladesh Shelter/NFI Sector in Cox's Bazar. The respondents rated the overall quality of NFI items as good with a score of 4.26 with an average 94% of respondents rating them good or very good which is a decrease of 0.14 compared to last year PDM. All shelter material items were found useful by 99.50% of respondents.