Accent Stairs
Manufacturer of custom aluminum, steel and stainless steel straight stairs, spiral stairs ladders and handrails.
http://accentstairs.com/

Roof Genius
Roof calculator, calculates a detail list of roof materials, and a complete estimate. Two ways to determine roof pitch. Offers tips and how to's on roofing. [Windows 95/98/2000/Me/XP/NT]
http://roofgenius.com/

Titan Stairs
Manufacturers custom stairs, railings, and fireplace mantles.
http://titanstairs.com/

Steel Smart, Inc.
Suppliers of metal stairs, spiral stairs, rails, fences and gates .
http://steelsmart.homestead.com/ss1.html

Architectural Stairs Inc.
Manufacturer of spiral, helix, circular, and modular stairs in steel or wood .
http://www.1stairs.com

Decra Roof Systems:
Roof coverings using lightweight roof tiles for all roofs down to a ten degree pitch. UK.
http://www.decra.co.uk/

Staging Dimensions Inc.
Manufacturer of portable staging and accessories including stairs, guardrails, ADA ramps, storage carts, seating risers, choral risers, stage skirting, pipe and drape and roof trussing.
http://www.stagingdimensionsinc.com/

Roof Products, Inc.
Manufacture prefabricated roof curbs and other roof accessories. Products include expansion joints, equipment supports, adapters, and ice deflectors.
http://www.rpicurbs.com/

Roof Coatings Manufacturers Association
Roof Coatings Manufacturers Association (RCMA) represents manufacturers of cold-applied roof coatings and cements. RCMA’s site offers product information and the latest roof coating news.
http://www.roofcoatings.org/

Steel Stairs
Fabricates and installs steel stairs and ornamental railings, fencing and gates on multi-family housing.
http://www.steelstairs.net