Double Plate
Graphical wall/top-plate support with plate count, bearing length, wall width, and local compression inputs.
Diagram + bearing schedule
Residential structural design software
Structural calculations, organized for confident review.
Build clear structural design calculations, coordinate project inputs, review wall and member behavior, and produce consistent calculation reports in one professional workspace.
Easy to use.Fast to complete.Clear to review.
✓Cloud-saved projects
✓Professional PDF output
✓Clean calculation diagrams
Wall Line W-3 · Exterior Elevation2025 CRC design workflow
PASS
Design summary
Story shear3.84 kips
Required unit shear388 plf
Panel schedule15/32 in. WSP
Boundary nailing8d @ 4 in. o.c.
Drift checkPASS · 0.44%
Calculation model · review trace enabledSWP-W3-01
Built for structural professionals
One platform. Six structural calculators.
Move from project inputs to transparent checks and review-ready diagrams without switching between disconnected spreadsheets.
Shear Wall
Wall lines, openings, elevations, hold-downs, straps, drift organization, and lateral-report workflow.
Open Calculator →Wood Beam
Multi-load analysis, reactions, bending, shear, deflection, end supports, and local bearing checks.
Open Calculator →Wood Column / Post
Axial compression, slenderness, stability, eccentricity, and combined interaction checks.
Open Calculator →Roof Joist / Rafter
Sloped or horizontal roof-member design with gravity, snow, serviceability, and support checks.
Open Calculator →Wall Footing
Continuous footing bearing, one-way shear, flexure, effective depth, and reinforcement layout.
Open Calculator →Isolated Footing
Pad-footing bearing, flexure, one-way shear, punching shear, and reinforcing design checks.
Open Calculator →
Clear enough to review
Review a Sample Report
Reports That Explain the Design.
The calculation output is organized around the information a reviewer needs: project basis, inputs, loads, support conditions, equations, capacities, demand-to-capacity ratios, diagrams, assumptions, and conclusion.
01Executive summary and governing design status.
02Physical support conditions, sizes, reactions, and local bearing checks.
03Review-traceable results with calculated demand, capacity, ratio, and status.
Selectable end supportsCalculation-aware
Double Plate
Beam
Column / Post
Real support conditions
No More Generic Triangle and Circle.
Select the physical support at each end, enter its dimensions, and see the analytical diagram and local support schedule update together.
Beam
Receiving-beam support with width, depth, effective bearing length, and local compression checks.
Diagram + bearing scheduleColumn / Post
Post support with plan dimensions, contact geometry, reaction transfer, and compression demand.
Diagram + bearing schedule
Professional plan
A consistent calculation workflow for every project.
Get access to the structural calculation bundle, saved projects, professional reports, and continued feature updates.
Unlimited calculationsProfessional reportsCloud project historyCancel anytime
Full bundle
$1.99/ MONTH
For your first 3 months
Use code
CALC2026
Choose Monthly Plan
Then $29/month. Cancel anytime.
A cleaner workflow
From Project Inputs to Final Report.
Every step remains visible, editable, and connected to the current calculation model.
01
Define the member
Select material, species, grade, product size, geometry, and applicable adjustment factors.
02
Build the load schedule
Add line, area, point, repeating-point, and applied-moment loads in one editable schedule.
03
Review the model
Confirm the physical support configuration, reactions, demand, capacities, and governing result.
04
Generate the report
Print a professional calculation package with model, inputs, equations, results, and limitations.
Try a Smarter Way to Calculate.
Move from disconnected spreadsheets to one modern workspace for structural calculations, diagrams, project history, and professional reporting.