1125A Ford Street
Colorado Springs, CO 80915
(719) 591-7837 Office ☆ (719) 591-9188 Fax
office@StairsUnlimited.com
















Our routed stair stringers, notched stair stringers and pre-built stairs made with engineered lumber are available over the internet.
We also sell aluminum and steel spiral stairs via the internet. Call or email for a no obligation quote.

Engineered wood products which include Laminated veneer lumber (LVL) and Oriented Strand Board (OSB) are manufactured using a variety of fast-growing, relatively small diameter trees. The laminating and gluing process produces a stronger more consistent product with virtually no warping or splitting. This process reduces waste by using more of the raw wood in the manufacture of the product as well eliminating waste caused by imperfections in the wood. It allows longer lumber to be produced from smaller trees with the end result being a more environmentally friendly product.


Engineered wood products are environmentally friendly

Our Engineered Lumber Interior Box stairs are built with:

  • 1 3/4" x 9 1/2" Laminated Veneer Lumber (LVL) Stringers
  • 3/4" thick OSB Risers
  • 1" thick OSB Tread


We hammer, glue and staple wood wedges in place.
Wood wedges provide a better glue bond than plastic wedges