Force-based wind analysis for the structures that stand on their own — solid freestanding signs & walls, rooftop equipment, chimneys & tanks, and trussed towers. Built on ASCE 7-22 Chapter 29, with book-verified force coefficients and permit-ready Engineering Reports.
Every plan unlocks all five ASCE 7-22 Chapter 29 calculators — solid freestanding signs & walls, rooftop equipment, chimneys & tanks, and trussed towers. Pick the seat count you need and start with a 7-day free trial — no credit card required.
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Five ASCE 7-22 Chapter 29 calculators, each with its own book-verified force-based procedure.
Solid sign faces carrying wind as an isolated body.
Freestanding solid walls, above-ground or at-grade.
Units and screens mounted on a roof.
Round, square, hexagonal and octagonal standalone bodies.
Open lattice towers, square and triangular.
These structures carry wind differently from a building, so they need a different method.
A freestanding sign or rooftop unit is an isolated body. It does not use building wall and roof pressure coefficients.
Chapter 29 applies a force coefficient (Cf) to the projected area. The result is a net force, not a zone-by-zone pressure map.
Clearance, solidity ratio, slenderness, and cross-section shape each change Cf. Small geometry changes shift the load.
Other Structures is its own category — separate from MWFRS Building and from Components and Cladding. Subscribe to what you need.
Every coefficient cites its Chapter 29 section. Building officials can follow each step in the Engineering Report.
PE sign-and-seal is available in all 50 states through our licensed network, routed by project location and scope.
The same guided flow as our live calculators, tuned for Chapter 29.
Choose a sign, wall, rooftop unit, chimney/tank, or trussed tower.
Automatic design wind speed from the project location, or enter it manually.
Dimensions, clearance, and exposure. The tool selects the right force coefficient.
Get a permit-ready Engineering Report in one click. Request a seal if needed.
Five ASCE 7-22 Chapter 29 calculators: solid freestanding signs, solid freestanding walls, rooftop equipment, chimneys and tanks, and trussed towers. These stand on their own — they are not part of a building's MWFRS.
Other structures use force coefficients (Cf) and the Chapter 29 procedures rather than building wall and roof pressure coefficients. A freestanding sign or rooftop unit carries wind as an isolated body, so it gets its own force-based calculation.
ASCE 7-22, the current edition. Every coefficient traces to its Chapter 29 section so reviewers can follow the math. We provide the latest standard rather than older editions.
Yes. The tool generates a professional Engineering Report with inputs, coefficients, and step-by-step results in PDF, Excel, CSV, and print. Reports follow the same trusted format as our live Components and Cladding calculator.
Yes. PE sign-and-seal is available in all 50 states through our licensed engineering network, routed by project location and scope. Request it after running your calculation.
Pick a plan above and start a 7-day free trial — no credit card required. One subscription unlocks all five Chapter 29 calculators. You can add it to your cart alongside our other calculators and check out together.
Start a free trial and run it yourself, or let our team handle it — our engineering services include PE sign-and-seal in all 50 states.