Integrating hybrid fuzzy logic and a web-based decision tool for material selection in design for deconstruction: a circular economy approach

Purpose The construction industry faces significant environmental challenges due to extensive waste generation and resource depletion. The Circular Economy (CE) model promotes reusing construction waste as raw materials through eco-design strategies such as Design for Deconstruction (DfD). Therefore, this study aims to develop a decision-making guideline and a web-based application for identifying essential material selection criteria to facilitate DfD, particularly for doors and windows. Design/methodology/approach A mixed-method approach was adopted, involving two rounds of expert interviews with 25 experts. Fuzzy AHP and Fuzzy TOPSIS were used for data analysis in the first round, while the second round validated the proposed decision-making guideline and supported the web-based application development. Findings “Avoid toxic and hazardous materials” was identified as the most critical criterion, while “Maintain updated as-built drawings and disassembly instructions” was the least critical. Among materials, “Timber” was the most suitable for deconstruction, whereas “Polymer” was the least favourable. Practical implications The decision-making guideline and web-based application can enhance design-phase decisions and promote CE practices within the construction industry, while offering valuable recommendations for policymakers. Social implications By promoting sustainable construction, the findings can support the transition towards a resource-efficient and environmentally responsible built environment. Originality/value This study addresses a notable gap by integrating material selection within a DfD framework specifically for joinery components. The development of both a decision-making guideline and a web-based application represents a novel contribution to sustainable construction research.