Bulldog Steel Structures Designer vs ShedBuild: Which Should You Use?
The verdict
Bulldog Steel Structures Designer and ShedBuild are both home & construction design tools, compared here side by side. Bulldog Steel Structures Designer is free, brand-locked (Free) and runs in any web browser with nothing to install; ShedBuild is truly free (Free) and runs in any web browser with nothing to install. The biggest difference is cost: ShedBuild is truly free, while Bulldog Steel Structures Designer is free, brand-locked (from Free).
Free tiers & pricing last verified Jun 23, 2026.
Pick Bulldog Steel Structures Designer if…
Free, brand-lockedVisualizing a custom steel garage before quoting
Pick ShedBuild if…
Truly freeDIY shed builders wanting cut lists and plans
Side by side
Bulldog Steel Structures Designer
Free, brand-lockedFree 3D carport/garage design tool with live price changes; you save and submit for a quote rather than checkout.
ShedBuild
Truly free100% free, no signup; generates materials lists, diagrams, build instructions, and PDF/JSON export for any shed size.
Read the full reviews
Bulldog Steel Structures Designer
Free 3D carport/garage design tool with live price changes; you save and submit for a quote rather than checkout.
ShedBuild
100% free, no signup; generates materials lists, diagrams, build instructions, and PDF/JSON export for any shed size.
Bulldog Steel Structures Designer vs ShedBuild: questions, answered
What is the main difference between Bulldog Steel Structures Designer and ShedBuild?
The biggest difference is cost: ShedBuild is truly free, while Bulldog Steel Structures Designer is free, brand-locked (from Free).
Is Bulldog Steel Structures Designer or ShedBuild free?
Bulldog Steel Structures Designer is free, brand-locked and ShedBuild is truly free. Bulldog Steel Structures Designer: Free 3D carport/garage design tool with live price changes; you save and submit for a quote rather than checkout. ShedBuild: 100% free, no signup; generates materials lists, diagrams, build instructions, and PDF/JSON export for any shed size.