Alpine is pleased to announce our new UL approval for oversize, leakage-rated doors. Our smoke-rated doors can now be made to order to meet your specific sizes and specifications. Call us today for a quote. We are sure you will find the quality of our oversize, smoke-rated overhead rolling doors to be of the highest standards. Call Alpine today at (631) 473-9300 for more information about the oversize, smoke-rated door today.