Low profitability of the building industry has driven the adoption of industrialised production methods in this sector. In an industrialised context, mass-customisation (MC) is a set of strategies aimed to offer tailored products at prices close to those of mass-production. MC can be achieved through integrating market knowledge and supply-chain processes into the building design. Nonetheless, the MC-related literature is slim in optimising designs for such an integration. The goal is to find optimal design configurations for the load-bearing spanning systems that incur minimum product waste and manufacturing process waste. The paper uses Cross-Laminated Timber (CLT) buildings as cases of highly prefabricated systems. The preliminary layout of a building is first mathematically modelled. Then, genetic algorithms are adapted to optimise wall dimensions and billet cutting plan. The example case demonstrated significant waste reduction compared to the building industry benchmarks. This highlights the practical benefits of the systematical implementation of MC from the early design stages. The present study contributes to the body of knowledge by introducing a novel design support tool that facilitates the adoption of MC in the building industry.

建筑行业的低盈利能力推动了该行业采用工业化生产方法。在工业化背景下，大规模定制 (MC) 是一套旨在以接近大规模生产的价格提供定制产品的策略。MC 可以通过将市场知识和供应链流程整合到建筑设计中来实现。尽管如此，与 MC 相关的文献在优化这种集成的设计方面很少。目标是为承重跨越系统找到最佳设计配置，以最大限度地减少产品浪费和制造过程浪费。本文使用交叉层压木材 (CLT) 建筑作为高度预制系统的案例。首先对建筑物的初步布局进行数学建模。然后，遗传算法适用于优化壁尺寸和钢坯切割计划。与建筑行业基准相比，示例案例展示了显着的废物减少。这突出了从早期设计阶段系统实施 MC 的实际好处。本研究通过引入一种有助于在建筑行业采用 MC 的新型设计支持工具，为知识体系做出贡献。