Commercial Curbs We install commercial curbing for parking lots and commercial properties. Choose from our standard commercial sized curbs or give us your dimensions and we can have a custom mold built. All of our parking lot curb mixes contain rock and fibermesh, which gives the curb extra strength. © Copyright by Midwest Design Concepts, Inc. 2008. All rights reserved. Reproduction of material appearing on this Web site is strictly prohibited without written permission. Site Developed & Maintained by Harris Decals, Inc.