# Reorder Points for Cabinet Hardware Canonical: https://millbase.ca/blog/reorder-points-for-cabinet-hardware Author: [Coby Birenbaum](https://www.linkedin.com/in/cobybirenbaum/) Published: 2026-10-19 Updated: 2026-10-19 Archive edition: 2026-03-19 A reorder point tells a shop when to begin replenishment; it does not guarantee that the supplier can deliver. A [reorder point](https://help.sap.com/docs/SAP_S4HANA_ON-PREMISE/af9ef57f504840d2b81be8667206d485/5697b6535fe6b74ce10000000a174cb4.html) tells a shop when to begin replenishment; it does not guarantee that the supplier can deliver. Use demand during the actual replenishment lead time, then add a buffer that reflects uncertainty. For custom hardware, known project requirements may be more useful than an average. ## Set up the calculation - Express demand and stock in the same unit, such as hinge pairs rather than cartons. - Measure lead time from placing the order to material being inspected and available. - Separate regular-use hardware from special-order parts purchased against jobs. - Review outstanding purchase quantities before placing another order. ## Worked example For an illustrative item used at 12 pairs per working day with a five-working-day lead time, expected lead-time demand is 60 pairs. Adding an illustrative 20-pair buffer gives an 80-pair reorder point. The buffer is a chosen planning assumption, not an industry standard. ## Avoid a false signal Consider usable stock, committed requirements, and confirmed incoming supply together. Reorder logic based only on physical shelf quantity can miss stock that is already promised to another job. ## State which inventory position triggers the review Write the trigger definition next to the number. One shop may compare a reorder point with on-hand stock; another may use on-hand plus confirmed open supply minus backorders. Either number becomes misleading if the calculation counts the same demand twice or treats an unconfirmed delivery as available today. For project-based work, use dated requirements alongside the reorder signal. An average of twelve pairs per day does not describe a single order that needs eighty pairs next Monday. A time-phased view of usable opening stock, expected receipts, and released-job demand shows whether supply arrives before the requirement. ## Use matching time units Daily demand and replenishment lead time must use the same calendar. If demand is measured per working day, do not multiply it by a lead time expressed in calendar days without converting the period. Include receiving and inspection time when the material cannot be issued immediately on arrival. Track the actual interval for several receipts rather than relying solely on the supplier's quoted transit time. Separate exceptional disruptions from routine variation, but retain both in the record. The person choosing the buffer needs to understand what the observations include. ## Review the outcome after replenishment When a reorder signal appears, record the decision, order quantity, expected usable date, and reason for any override. After receipt, check whether the shop ran short and whether unused stock accumulated. These outcomes help distinguish a bad trigger from a late order, an unreliable supplier promise, or an unrecorded job change. Change the policy that caused the problem instead of raising every buffer automatically. ## Related reading - [Inventory Management Software for Woodworking: What to Track First](https://millbase.ca/blog/inventory-management-software-for-woodworking-what-to-track-first) - [Cycle Counting for a Woodworking Warehouse](https://millbase.ca/blog/cycle-counting-for-a-woodworking-warehouse) ## Definitions and further reference - [SAP: reorder points and safety stock](https://help.sap.com/docs/SAP_S4HANA_ON-PREMISE/af9ef57f504840d2b81be8667206d485/5697b6535fe6b74ce10000000a174cb4.html) - [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 ### Is the reorder point the order quantity? No. The trigger says when to review replenishment. The quantity depends on expected demand, existing orders, supplier pack sizes, storage, and cash constraints. ### How often should a reorder point change? Review it when demand, delivery reliability, product mix, or supplier terms change. A stable monthly check is useful, but significant changes should not wait for that review.