One product · One sheet · Any weather
The Model 5
A 38-pound machined steel paperweight, rated to hold one letter-size sheet of paper in place at sustained winds of 157 miles per hour and above.
That is a Category 5 hurricane. Your roof is rated to about 130. We are not in the roof business, and after extensive testing we understand why.
“Every paperweight ever sold was designed for a still room. We asked a harder question: what is your memo worth to you when the room is gone?”
Ruth Gale, founder and chief engineer
I. The Engineering Case
Against every lesser paperweight
The glass dome, the novelty brick, and the souvenir snow globe all fail the same way: they hold paper down until the day the paper actually tries to leave. A paperweight that only works in calm air is a decoration with a job title.
The Model 5 is a single billet of 4340 alloy steel, through-hardened, milled in one fixturing, and finished with a contact face lapped flat to 0.0002 inches. Across a letter-size sheet, that flatness means the wind has no edge to get under. There is no edge. We removed it on the lathe.
Thirty-eight pounds is not a number we chose. It is the number the wind chose, and we went one pound past it out of respect.
II. The Wind Tunnel Program
Eleven years. 2,600 runs. Zero sheets lost.
We leased overnight time in an aerospace wind tunnel in 2014 and never really gave it back. Every production change, every alloy lot, every new edition goes back into the airstream before it goes near a customer's desk.
In eleven years of testing, the paper has never moved. The desk moved. The lamp moved. In run 1,844 the technician moved, briefly and without permission, and now observes from the gallery. The program's finding is consistent: the weak point of a document retention system is everything that is not the Model 5.
III. Rated Tests
The paper never moves. Nothing else passes.
Selected results from our certification archive. In every frame, one standard sheet, retained. We photograph the surroundings for scale, and because insurance requires it.
IV. The Editions
Three finishes. One rating.
Every edition carries the same 157+ mph retention rating. The finish is for you. The wind has never expressed a preference.
V. Accessories
For the rest of the room
VI. Specifications
The data plate
VII. In the field
Owners report
VIII. The Company
Machined in Duluth since 1992
Ruth Gale spent nineteen years machining turbine components before a June derecho took a signed purchase order off her desk and out over Lake Superior. The order was recovered. The confidence was not.
Category Five Paperweight Co. has made one product ever since. We do not make a Category 1. We are not sure who it would be for.
IX. Ordering
Place a freight order
The Model 5 ships freight, palletized, curbside. Please measure your doorway, your floor joists, and your commitment before ordering. All three will be tested.
Order received.
The freight desk has your order. You will receive a confirmation email, a pallet, and eventually a very confident sheet of paper. Second floor customers will also receive a phone call, and it will begin with a question about joists.
X. Questions
Asked with some frequency
Can it hold two sheets?
No. The Model 5 is rated for one sheet. In testing, a second sheet survives in practice, but we will not certify what we cannot guarantee, and we will not guarantee what we have only observed 2,600 times.
What about A4?
A4 certification has been pending since 2019. The sheet is 6 millimeters narrower and 18 millimeters taller, which changes the exposed perimeter, which restarts the wind tunnel program. We are aware Europe has weather. We ask for patience.
Do I need the Reinforced Desk?
The Model 5 does not need it. It sits with equal composure on oak, glass, or the floor where the glass desk used to be. The Reinforced Desk is for customers who prefer the paperweight and the desk to retire at the same time.
Is 38 pounds really necessary?
At 157 mph, yes, with margin. At the breeze from your ceiling fan, no, and neither is a fire extinguisher on most days. Rated equipment is about the other days.
What happens in winds above 157 mph?
The rating is 157 mph and above. There is no upper number on the data plate because the tunnel could not produce a wind the Model 5 respected. Above 200 mph, our finding is that the sheet stays and the laboratory does not.
Can I move it?
Yes, deliberately. Owners describe relocating the Model 5 the way they describe felling a tree: possible, plannable, and not something you do to see what happens. We sell a hand truck.
Is it insured against loss?
The sheet, yes. Our Retention Guarantee covers the document under the Model 5 in any named storm. In thirty-three years we have paid out once, and that customer, we later established, had lifted the paperweight himself.