Timberless-33 Floor System

Lightweight Flooring System for Taller Mid-Rise Structures

The Timberless-33 prefabricated floor system is the lightest cold-formed steel system on the market today.


1 1/2″ Gypcrete


9/16″ Metal Decking


24″ O.C. Max


Resilient Channel


3 1/2″ Batt Insulation


5/8″ Drywall

Lightweight, strong, and versatile.

The Timberless-33 prefabricated flooring system is ideal for taller structures with its ability to maintain a lighter foundation while reducing the supporting elements of the foundations and/or podiums. As a result, lower weight delivers less foundation impact and ultimately less cost. Additionally, the Timberless-33 system is ideal for areas of extreme winter weather conditions, as it can be dried in quickly with one trade driving the critical path.

Timberless-33 is ideal for Mid-Rise projects like:





Student Housing

Timberless-33 System Details


Total System Weight of 33 lbs. psf.

No Shoring Required, Saving Time with Sub Trades

Gypcrete Poured Top Down Once Erected

Modified Balloon Framed Floor System Technology

Resilient Channels & Drywall Installed at Bottom of Joists for Controlled Sound

All Components Non-Combustible

Quick Installation

Ratings / Data

Fire Rating

UL G564 1 hr.

UL G564 2 hrs.

Sound Technical Data

STC 58 with Carpet / Pad

IIC 79 with Carpet / Pad


UL G564 1 & 2 Hour Fire Data

Timberless-33 STC Ratings

Timberless-33 Details

Timberless-33 Section Details

The process of getting started is easy with a Superior Framing Solution

Schedule a Project Discovery

Schedule a Project Discovery

Schedule a discovery call with our experienced sales and estimating team to ensure your project is a good fit for a cold-formed steel framing system.

System & Delivery Selection

System & Delivery Selection

Working with our sales team, we’ll help you specify the correct framing solution for your project.

Review & Approve Proposal

Preview & Approve Proposal

Once your system is selected, we’ll review your scope and schedule with you to make sure everything is clear and accounted for.

Design & Go Vertical

Design & Go Vertical

Once approved, our pre-construction team will coordinate with you to ensure accuracy, timelines and budgets. Then we go vertical!