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Shipping everywhere in US and Canada!
Just add steps* to our stair stringers
to get 2 ½ to 13 ft solid stairs ready to
install in less than 1 hour!
32 models to choose from!
We ship from NY state, no sales tax!
Buy Direct! 2 to 5 days shipping
from $199 US + s/h
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Build Jobsite Stairs with Fast-Stairs.com Stringers Kit

Construction jobsite stairs easily made with prefabricated rust proof steel stair stringers.

If you'd like to vastly improve building site safety and efficiency, now you can build long lasting, movable and reusable (over 50 jobsites) jobsite stairs thanks to Workstairs / Fast-Stairs modular adjustable steel stair stringers. Builders, contractors and framers now save 80% (over time) on jobsite ‘’temp’’ stair costs while contributing to eliminate needless landfill lumber waste. No more filling the dumpster with broken down wooden ‘’temp’’ stairs. Other Workstairs / Fast-Stairs jobsite stairs benefits are:

  • Hands-free alternative to ladders and scaffolding
  • Adjustable In height (12") and width
  • Rust proof
  • Super solid (1 ton capacity)
  • Quick and easy assembly
  • 85% made of recycled steel
  • OSHA standards compliant stair models
  • Economical (pennies a day!)
  • Lifetime warranty
  • New easy to ship and carry (max. 70 lbs) packages

Designed for fail-safe DIY jobsite stair building and installation

Workstairs / Fast-Stairs provide a unique, quick and easy way to build long lasting, free-standing 2½ to 13 ft high jobsite stairs. No stair stringer calculator required. No more figuring out the rise and run of steps. Simply measure your floor to floor vertical height and then choose online the Fast-Stairs adjustable model that fits the desired height of your jobsite stairs. We recommend our space saving C models (8¼’’ riser height, shorter stair run). Our patent pending adjustable (at every ¼’’) 12 inch, ¼” steel top hook straps allow our jobsite stair models to typically move from 8 ft to 9ft ceiling sites or from 9 ft to 10 ft ceiling sites and more depending on your choice of jobsite stair model.

Green building jobsite stair safety, efficiency & economy

Workstairs / Fast-Stairs offer do-it-yourself jobsite stairs solutions for consumers, re-modelers, builders and contractors alike. There is no faster, easier or better way to build super strong and economical jobsite stairs. Simply bolt the stringer sections together with the slide connectors and screw the step/treads (not included) of your choice to the perforated welded steel step supports. The simple method for attaching railings to your jobsite stairs is with railing posts fastened from inside the perforated steel stringers and railing boards fastened to posts above the box steel stair stringers. You do the job in minutes.

Steel box-framed jobsite stairs for pennies a day! 1-866-931-0470, toll-free

Order online (10% discount), by phone or email for 2 to 5 day delivery anywhere in the continental USA and Canada. All zinc-plated connecting fasteners with Allen key are included with the easy to ship and carry Fast-Stairs packages. Call and ask about our volume order discounts.

workstairs top WS2 side view workstairs front workstairs bottom

Click here to learn two simple methods for attaching railings to your jobsite stairs

Shop for your steel stair stringers now!

Uses and testimonials

"The stairs worked out very well... assemble better and faster..."

- Ronald Palmer, California

"One of the best new products on the market today."

- Canadian Contractor Magazine

"Your stairs are great, easy to install. Just ordered another set for another house."

- Brian Fischer, California

"Claude, you have been an excellent person to work with. And man-o-man what a set of stairs. They are so strong and so easy to put together. Thank you and Fast-Stairs."

- George Settles

"The product was fantastic and have told many people about it and would not hesitate to purchase again in the future."

- Richard Morse, Mass.
See more photos and testimonials

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