Almost every board that frames a US house is measured and cut by hand
on a jobsite. That practice carries three bills nobody talks about together.
01
Waste
$0B
of US lumber, cut and thrown away every year.
Eight to twelve percent of every lumber order ends up in a dumpster.
The US residential lumber supply chain processes more than
$160 billion in materials each year.1
Roughly one out of every eight boards is cut short, offcut and forgotten,
or trimmed past the point of reuse — about
$19 billion of lumber, every year.
That wood is logged, milled, dried, graded, trucked across the country,
and stocked on a yard — only to be cut once, thrown in a bin, and hauled to a landfill.
One pile. One jobsite. One day.
02
Time
Pre-cut framing saves two to six days on every house.
A HUD field study of builders who switched to pre-cut and panelized wall
systems found framing cycle times dropped by 2–6 days per home, with crew
sizes reduced by about two workers — savings drawn directly from eliminating
on-site measuring, cutting, and fastening.2
That is not surprising once you look at the underlying production rates.
Standard wall framing runs about 0.036–0.046 man-hours per linear foot,
or roughly 2–3 minutes per linear foot for layout, measuring, cutting,
and assembly combined.3 A framer averages
ten to thirteen studs installed per labor-hour — about four to six minutes
per stud.4 The measuring and cutting step
is a real slice of that, repeated thousands of times per house.
Hours of jobsite measuring and cutting in the US since you opened this page
0
Estimated, based on US housing starts and the production rates cited above.
03
Safety & precision
0
US emergency-room saw injuries per year.
0
of those are amputations.
About 30,000 table-saw injuries are treated in US emergency rooms every year.
Roughly 4,300 of them are amputations.
That is the CPSC's own estimate, drawn from years of NEISS hospital
data and re-cited in the 2023 federal rulemaking on table-saw blade
contact.5 The agency does not split jobsite
from home use cleanly, but residential framing is a meaningful share —
carpenters log thousands of nonfatal injuries with days away from work
every year.6
Precision is the quieter version of the same problem. A cut made on a
calibrated indoor machine does not depend on the weather, the wind,
a sawhorse that is not quite level, or how tired the framer is at
three in the afternoon. A cut made on a jobsite does.
Why this persists
Manual measure-and-cut is the default because no part of the building
material supply chain is engineered to do it any other way. Offcuts are
abandoned because nothing tracks them. Saws live on jobsites because
nobody has built the alternative — at the lumberyard, in the hands of
the people already moving the wood.
Struct-Mill exists to end this.
We are building automated pre-cutting that lives at the lumberyard,
so the right pieces — and only the right pieces — arrive on the truck.