Subcontractor Bidding Software:
All the tools, for all the trades.

#1 Preconstruction Software Solution for Subcontractors

The construction market is busy and there’s no shortage of project opportunities, but bidding and winning the most profitable work requires the right tools. Disorganized project documentation, manual takeoff processes and lack of team alignment can significantly hinder a your ability to grow your revenue – that’s where STACK comes in. No matter what your trade, STACK preconstruction tools will help your team to work smarter and faster, to bid more work in less time and to ensure your team is connected and aligned throughout the process.

One Powerful Platform, Many Capabilities

Evaluating the most profitable projects and completing your takeoff and estimating process efficiently might seems like a tall order, but with our industry-leading, cloud-based preconstruction tools, you'll be well equipped to win.
Plan & Document Management

Plan, Spec & Doc Management

Keeping project details & supporting documents organized has never been easier.

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Team Collaboration

Team Collaboration & Connectivity

Use robust markup, callout, sharing & invitation features to keep your team aligned.

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Cloud Takeoff

Cloud-Based Quantity & Material Takeoff

Make project takeoffs
10x faster & empower your team to work anytime, anywhere.

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Cost Estimating

Cost Estimating & Proposals

Adjust costs, markup, tax, and overhead to create branded proposals with ease.

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Subcontractors can't live without STACK!

Ready to see STACK in action?

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What impact will STACK have?

See how much time you’ll save & how much additional revenue you’ll generate with STACK.

Before You Go...

Get The Contractor’s Ultimate Guide to Bidding and Winning More Profitable Work.
You’ll discover 9 actionable steps to increase your bottom line.