CONSTRUCTION WASTE:

The Hidden Cost of Wood Frame Construction

Annual construction waste is expected to reach 2.2 billion tons globally by 2025 according to Transparency Market Research, and here in the US, 23% of the national waste stream is estimated to be C&D (Construction & Demolition) waste. This is a key reason why builders are turning to a steel framing system for a more sustainable alternative. According to the EPA, the US generated over 600 million tons of construction-related waste in 2018, which has increased by 342% from 1990 to 2018.

These are staggering numbers, and unfortunately, most homebuilders fail to consider both the financial and environmental impacts when deciding on what building technologies to use. Homebuilders often throw away cut-offs, damaged materials, and unused or incorrect materials that are left over when the job is complete. We have often seen builders toss entire pallets of pavers, roofing materials, doors, and lumber into the dumpster simply because it was easier than sending it to another job or back to the warehouse. This is precisely where light gauge steel framing offers a smarter approach, as it is manufactured to precise specifications, drastically reducing on-site waste. Some builders attempt to recycle traditional materials; however, it can be difficult to manage the process, or to justify the cost of two separate containers at a job site, or the time it takes to sort the waste.

To help educate and bring more awareness to the impact on our environment building with wood has, we have developed this simple easy to use Calculator which compares the use of wood to light gauge steel. Plug in the numbers of your new home or building to see the comparison.

Steel Vs Wood Calculator
Size of Home/Building in Square Feet (Under Roof)
SF
Number of Floors/Levels
Project Name and Location (City & State)
Built with WOOD Framing
House - Wood Parameters
Average lumber used in Board Feet (BF) 16,000 BF
Average Plywood Used in Square Feet (SF) 6,000 SF
Trees-To-Lumber Calculation Parameter
Volume - Standing Tree Board Foot (BF)
- Based on 12" DBH @ 2.5 - 16' Logs (Intl 1/4" Rule)
120 BF
Estimated Number of Trees
Lumber Used 134 Trees
Plywood Used 50 Trees
Total Used 184 Trees
Waste (Typical is between 20% and 25%) 37 Trees
Grand Total Trees Used 0 Trees
Built with KRATOS/STEEL Framing
House - LGS Paraxmeters
Amount of Steel
(Lbs)
11,000 LBS
Estimated MgO Roofing 3,600 SF
Estimated MgO Subflooring 0 SF
Trees-To-Lumber Calculation Parameter
Standing Tree Board Foot Volume
- Based on 12" DBH @ 2.5 - 16' Logs (Intl 1/4" Rule)
120 BF
Recycled Autos-To-Steel Calculations
Average LBs Steel - Car 2,500 LBS
Average LBs Steel - SUV 3,000 LBS
Total Wood Used 0 Trees
Grand Total Trees Used 0 Trees
200 TREES
VERSUS
5 Autos

Calculation References:

  1. Average pounds of steel per auto (Source: Mayco International)
  2. Wood Weight Calculator (Source: BuildersCalculator.com)
  3. Wood calculation based on average amount of lumber for a 2,000 SF house
  4. Tree Volume to Board-Foot Calculations (Source: Ohio State University)
  5. Steel LBS/SF conversion factor @ 8.25Lbs (Source: PBS average from actual projects)
Performance Building Solution is proving to be a better, more sustainable way to build by eliminating as much of the organics/wood in the structure as possible. Removing the organics protects against fire, mold, mildew, termites and other insects which attack and weaken the structure over time. Building with better quality inorganic materials increases a buildings’ durability, resilience and overall performance, which in turn provides for higher longer-term value and lower operating costs for the owner/operator. Let us help you build better with Kratos.