Wide resection of the chest wall requires reconstruction with rigid prosthetic material to protect the thoracic organs and to avoid flail chest. We tried to use three kinds of plates for chest wall reconstruction in 4 cases: acrylic plate for 1, ultra-high-molecular-weight polyethylene (UHMWP) plate for 1 and methyl metacrylic resin (MMR) plate for 2. Marlex mesh was utilized to strengthen the rebuilt chest wall sandwiching rigid prosthesis in UHMWP plate and MMR plate. Except for somewhat local accumulation of serous fluid in two cases of acrylic plate and MMR plate, postoperative courses were uneventful in all cases. Acrylic plate which was used for patient with metastatic sternal tumor was easily damaged by heat. UHMWP plate which was used for patient with large benign sternal tumor was expensive and took a long time to make. On the other hand, MMR plates which were used for two patients with malignant lateral chest wall tumor were easy to handle on the spot and not expensive. MMR plate sandwiched by Marlex mesh seems to be more suitable and available for chest wall reconstruction.