QCheckBox *pCheckBox = new QCheckBox(this); QSize sz = pCheckBox->sizeHint(); pLayout->addWidget(pCheckBox, 0, 1); QPushButton *pButtonMinus = new QPushButton("-", this); pButtonMinus->setMinimumHeight(sz.height()); pButtonMinus->setMinimumWidth(1); pLayout->addWidget(pButtonMinus, 2, 1);