Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product safety testing and certification organization. We have tested products for public safety for more than a century. Each year, more than 16 billion UL Marks are applied to products worldwide.
DHOI is your source for division 8 wood and hollow metal doors, metal frames, and architectural finish hardware. We serve customers throughout the southeastern United States from three locations, in Tampa, Orlando, and Brooksville, Florida. We are at your service, with a warehouse stocked with doors and hardware from leading manufacturers and a box truck fleet for quick delivery to your location.
If you need custom doors or specialty hardware, or have special requirements, just ask. We operate a machine shop staffed by experienced craftsmen who can fulfill your most complex requests. Our knowledgeable sales personnel are your resource for complete product specifications and delivery.
The door is open, so come in and explore our divisions and visit our exceptional list of manufacturers!
