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Inventory · head to head

Odoo Inventory vs Sage 300 Construction

Odoo Inventory logo

Odoo Inventory

Inventory

Open source inventory management module

From
Free
Rated
-
Full reviewWebsite
Sage 300 Construction logo

Sage 300 Construction

Construction

Cloud-based construction ERP software

From
$400/month
Rated
-
Full reviewWebsite

The short version

  • Only Odoo Inventory has a free tier, so it costs nothing to try first.
  • Each has a real cost: Odoo Inventory the One App Free plan covers a single app, so using Inventory alongside another Odoo app moves the account onto a paid plan; Sage 300 Construction the Internet Archive's capture of Sage's product page on 25 December 2019 confirmed Sage 300 Construction and Real Estate as a distinct 'Other products' entry separate from the mainline Sage 300cloud accounting product, with no price figure published for either.
  • They diverge on capability: Odoo Inventory covers Inventory management, Sage 300 Construction covers Project management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Odoo Inventory and Sage 300 Construction actually diverge.

Attributes where Odoo Inventory and Sage 300 Construction differ
AttributeOdoo InventorySage 300 Construction
Starting priceFree$400/month
Free tierYesNo
PlatformsWeb, Mobile app, Cloud/On-premiseWeb, Windows
CategoryInventoryConstruction
Founded20051981

Identical on both: pricing model (subscription), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Odoo Inventory

  • Inventory management
  • Barcode scanning
  • Multi-warehouse
  • Automated replenishment
  • Odoo ERP modules
  • E-commerce
  • Manufacturing
  • Mobile app support

Only in Sage 300 Construction

  • Project management
  • Job costing
  • Payroll
  • Equipment management
  • QuickBooks
  • Microsoft 365
  • Stripe
  • Box

Both cover

  • Accounting
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Odoo Inventory

  • Tracking stock across multiple warehouses and locationsnot Sage 300 Construction
  • Running receipts, deliveries and internal transfersnot Sage 300 Construction
  • Connecting inventory to Odoo sales, purchasing and manufacturingnot Sage 300 Construction

Sage 300 Construction

  • Financial managementnot Odoo Inventory
  • Job costingnot Odoo Inventory
  • Payrollnot Odoo Inventory
  • Equipment trackingnot Odoo Inventory

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Odoo Inventory

  • The One App Free plan covers a single app, so using Inventory alongside another Odoo app moves the account onto a paid plan
  • The Standard plan at $16.90 per user per month is restricted to Odoo Online hosting
  • Odoo.sh and on premise hosting require the Custom plan at $25.50 per user per month
  • Odoo Studio, multi company management and external API access require the Custom plan
  • Billing is per user, defined as any employee with backend access to create, view or edit documents
  • The advertised discounted rates apply for the first 12 months, after which the list rates of $21.10 and $31.90 per user per month apply

Sage 300 Construction

  • The Internet Archive's capture of Sage's product page on 25 December 2019 confirmed Sage 300 Construction and Real Estate as a distinct 'Other products' entry separate from the mainline Sage 300cloud accounting product, with no price figure published for either.

Pricing, plan by plan

Odoo Inventory

Free
  • CommunityFree
    • Open source
    • Basic features
    • Community support
  • Standard$20/month
    • Full features
    • Hosting included
    • Email support
  • Custom$40/month
    • Customization
    • Studio access
    • Priority support

Sage 300 Construction

$400/month
  • Professional$400/month
    • Project management
    • Accounting
    • Job costing
  • EnterpriseFree
    • Equipment management
    • Advanced analytics
    • Custom workflows

Which should you pick?

Choose Odoo Inventory if

  • You need inventory management.
  • You want to start without paying.
  • You work on Web, Mobile app, Cloud/On-premise.
  • You also want barcode scanning.
Odoo Inventory review

Choose Sage 300 Construction if

  • You need project management.
  • You work on Web, Windows.
  • You also want job costing.
Sage 300 Construction review

Questions people ask

Is Odoo Inventory or Sage 300 Construction better?
Neither clearly leads. Odoo Inventory starts at Free and Sage 300 Construction at $400/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Odoo Inventory or Sage 300 Construction?
Odoo Inventory has a free tier; the other does not. Paid plans start at Free for Odoo Inventory and $400/month for Sage 300 Construction.
Does Odoo Inventory or Sage 300 Construction run on more platforms?
Odoo Inventory runs on Web, Mobile app, Cloud/On-premise. Sage 300 Construction runs on Web, Windows.
Can I use Odoo Inventory for free?
Yes. Odoo Inventory has a free tier, so you can try it without paying. Sage 300 Construction starts at $400/month.
What is Odoo Inventory best used for?
Odoo Inventory is most often used for tracking stock across multiple warehouses and locations, running receipts, deliveries and internal transfers, connecting inventory to odoo sales, purchasing and manufacturing. Of those, tracking stock across multiple warehouses and locations and running receipts, deliveries and internal transfers are not what Sage 300 Construction is typically brought in for.
What can Odoo Inventory do that Sage 300 Construction cannot?
Odoo Inventory covers Inventory management, Barcode scanning, Multi-warehouse, Automated replenishment. Sage 300 Construction covers Project management, Job costing, Payroll, Equipment management. Both handle Accounting, Web support.

Answered from the vendors’ own pages

Odoo Inventory: How much does the Odoo Inventory app cost?

The Odoo Inventory app is free, forever, with unlimited users at no cost. Additional costs only apply if you install other applications in the Odoo suite.

Source
Odoo Inventory: Do I need to pay to use Odoo Inventory?

No, Odoo Inventory is completely free with no credit card required to start. The free trial and app remain free indefinitely.

Source
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