Panel Builder will draw glass block panels for windowopenings or walls based on the dimensions you supply.The program displays the number of each size blockrequired and will calculate the costs of materialswith sales tax, using pricing information that youtailor for each account. Prevent costly errors whenlaying out and pricing glass block windows. Buildsolid or vented glass block panels. Position the ventwhere you want it. Add up to 5 different size vents tocustom panels. Add dryer blocks and change panellayouts. Over one hundred different sizes of vents tochoose from. Set password protection for block andvent prices as well as accounts. Note: registration fee is monthly.