# ABC Inventory Analysis for Woodworking Materials

Canonical: https://millbase.ca/blog/abc-inventory-analysis-for-woodworking-materials
Author: [Coby Birenbaum](https://www.linkedin.com/in/cobybirenbaum/)
Published: 2026-10-19
Updated: 2026-10-19
Archive edition: 2026-04-27

ABC analysis groups inventory by a chosen measure, often annual consumption value, to focus attention.

ABC analysis groups inventory by a chosen measure, often annual consumption value, to focus attention. In a cabinet shop, value alone can miss cheap parts that stop assembly. Use the classification as a starting point and add operational criticality.

## Build a useful classification

- Calculate consumption value using consistent quantity and cost data.
- Separate dormant stock from frequently consumed items.
- Flag low-cost components whose absence blocks an entire assembly.
- Assign counting and review effort based on both value and disruption risk.

## An illustrative exception

An inexpensive mounting plate may have low annual value but no approved substitute. A costly sheet material might have several interchangeable sources. The plate can deserve closer replenishment attention despite its lower value classification.

## Keep it current

Review classifications after major changes in product mix or supplier reliability. Do not let last year's spending pattern determine every inventory decision indefinitely.

## Related reading

- [Inventory Management Software for Woodworking: What to Track First](https://millbase.ca/blog/inventory-management-software-for-woodworking-what-to-track-first)
- [Tracking Work in Progress Inventory in a Millwork Shop](https://millbase.ca/blog/tracking-work-in-progress-inventory-in-a-millwork-shop)

## Definitions and further reference

- [Oracle: inventory management explained](https://www.oracle.com/scm/inventory-management/what-is-inventory-management/)

## How Millbase can help your shop

### Connect material records to the cabinet job

When a component shortage or material change affects a job, start with the recorded stock and the work it supports. [Millbase inventory](https://millbase.ca/#inventory) keeps quantities, material costs, receipts, stock lots, and usage history together. Use [project tracking](https://millbase.ca/#projects) to review the associated labour and material costs, then reconcile the physical material before making a new commitment.

Ask the [Millbase AI agent](https://millbase.ca/#how-it-works) a question grounded in your workspace records. For example: *“What inventory records do we have for this material, and what usage is recorded against this project?”* You can select a project or worker, ask follow-up questions, and request [supported reports and CSV exports](https://millbase.ca/#insights).

Use the answer to locate the relevant records and investigate the exception. A physical count, approved specification, or supplier confirmation still establishes facts that have not been recorded.

## Frequently asked questions

### Must A, B, and C use fixed percentages?

No. Choose thresholds that create workable review groups for your shop and document the basis. Avoid treating a familiar ratio as a universal rule.

### Does ABC analysis replace cycle counting?

No. It can help prioritize counts, but the counting process still needs controlled movement, investigation, and corrections.