
Precast concrete optimization
for early design stages
Cimbra saves you time and money by exploring thousands of designs in seconds within your existing mold and material inventory. Rather than checking for compliance, Cimbra finds the optimal product configurations for you.
Proven in production
Forma Systems partnered with J.P. Carrara, a leading precast producer, to design, cast, and load-test a shape-optimized multi-stemmed precast slab. The full-scale prototype was demonstrated at Structures Congress Boston in April 2026 and was supported by a MassCEC InnovateMass grant. Learn more here.
“We were particularly impressed by the multi-stemmed deck slab their software designed; the cross-sectional area was much leaner than expected for the given span and loads, resulting in a section half the weight of a standard hollow core plank. The section performance during load testing was outstanding, proving its robustness by carrying full loads without any signs of distress.”
“What stood out in this project was how readily the shape-optimized precast floors integrated into standard construction practices. From a construction perspective, lighter elements can support simpler logistics, reduced lifting requirements, and faster installation timelines. Coupled with the embodied carbon reduction potential, this type of innovation reflects the kind of practical, scalable advancement that aligns with Turner’s focus on safety, constructability, and driving lower-carbon solutions across the built environment.”
Our partners and customers






















How Cimbra works
Create Your Mold Inventory
Create your custom molds library and decide which features (such as flange thickness or strand layout) can vary during the optimization process.

Define Your Project Objectives
Import your project data or enter spans and loading conditions directly, then choose your preferred objective — whether that's weight, cost, depth, or carbon.

Optimize Across Products
Let Cimbra explore tens of thousands of configurations for you and find the optimal product configuration and concrete mix for each load case.

What Cimbra offers
Catalog-Based Optimization
Optimize against your actual mold inventory. Cimbra finds the best design within each mold's geometry constraints — so results map directly to what you can cast
Multi-Span Projects
Thanks to its advanced optimization capabilities, Cimbra generates optimized designs for multiple spans and load cases in a single run, enabling a faster decision-making at early design stages.
Full ACI 318-19 Verification
Every design is verified for flexure, shear, deflection, and serviceability stress. Full structural diagrams and code check tables included — no separate hand calcs needed.
Evaluate Across Objectives
Optimize for the objective that matters most — material weight, estimated cost, embodied carbon, or depth - and evaluate trade-offs across them all in the results dashboard.
Professional Reports
Export PDF structural reports with section drawings, reinforcement details, and verification tables. Ready for engineer review or client submission.
Eurocode 2 SupportComing soon
ACI 318-19 today, with Eurocode 2 coming soon. Design to the code your market requires.
Ready to optimize your next precast concrete project?
Request access to get started with a 30-day free trial.
Try for FreeWatch the walkthrough
Getting started with Cimbra
A five-minute walkthrough with co-founder Sandy Curth — from logging in to reading optimized results.