MRP Software for Small Manufacturers & Job Shops (2026)

MRP software is how a shop stops guessing. It takes your demand — the work orders you've booked, the sales orders on the calendar, your forecast — compares it against what's on hand and already committed, and tells you what to build, what to buy, and when. For a small manufacturer or a job shop, the trap is buying MRP built for a 200-person plant: months of setup, per-seat fees, and a shop-floor scheduling module you'll never open. This guide covers what light MRP actually is, what a small shop needs, and how to tell the two apart.

What MRP software actually does#

At its core, MRP answers three questions on a rolling basis:

• What do I need to make? — driven by work orders and the demand behind them
• What materials does that consume? — driven by each product's bill of materials (BOM)
• What do I need to buy, and when? — the gap between committed demand and stock on hand, timed against supplier lead times

Traditional MRP was designed for high-volume manufacturers running multi-level assemblies through a scheduled shop floor. Most small shops don't run that way — which is why "light MRP" exists.

Light MRP vs full MRP — which do you need?#

Full MRP (Katana, Fishbowl, MRPeasy, NetSuite manufacturing) is built for repeatable production: multi-level nested BOM rollups, real-time shop-floor scheduling, batch and lot tracking, capacity planning. If you run the same assemblies through defined workstations at volume, you need it.

Light MRP covers the shops that do custom or job-shop work — cabinet shops, sign shops, metal fabricators, kitting operations. You need work orders, a single-level BOM, committed-demand purchasing, and cut-list tracking. You do not need shop-floor scheduling, because every job is different and the "schedule" lives in your project calendar, not a workstation queue.

Buying full MRP for a job shop is the classic mistake: you pay for — and wrestle with — production-planning machinery that doesn't match how you actually work.

What a small manufacturer or job shop needs#

Skip the feature-list marketing and check for these:

• Work orders that consume parts from your catalog and show committed demand
• A bill of materials — at minimum single-level (this product uses these parts)
• Committed-demand purchasing — the system nets your booked work against stock and tells you what to order
• Cut-list / job import — pull a cut list or job spec from a spreadsheet without retyping every line
• Purchase orders and receiving that update stock and cost
• Flat pricing — per-seat fees punish you for adding shop hands who barely touch the software

Job shops and custom builds: work orders + cut lists#

If your work is project-driven — a kitchen, a sign package, a fabrication run — the unit of work is the job, not the SKU. The right tool lets you raise a work order for the job, attach the parts and quantities it consumes (often from an imported cut list), and roll that committed demand into your purchasing so you order what the job needs and nothing you don't. Every column from your cut list — width, length, thickness, grain, profile — should carry through without forcing your shop into someone else's schema.

What to look for (and what to skip)#

Look for: fast setup (days, not months), CSV/Excel import that auto-detects your columns, work orders tied to real parts, committed-demand netting, and flat pricing.

Skip (unless you genuinely run volume production): real-time shop-floor scheduling, multi-level nested BOM rollups, capacity/finite scheduling, and MES integrations. These are the features that turn a two-week rollout into a six-month one.

Where InventoryQuick fits#

InventoryQuick's MRP features live on the Enterprise plan ($349/mo, unlimited items, locations, and users) — see the MRP software page for the full breakdown. It's light MRP by design: work orders, cut-list Excel/CSV import with universal attribute mapping (width, length, thickness, grain, or any custom column), project-driven demand forecasting, auto-purchase-orders with budget caps, and single-level BOM via the parts catalog. It was built alongside a working cabinet shop, and the same attribute engine fits sign shops, metal fab, and kitting without per-vertical setup.

Honest scope: InventoryQuick does not do multi-level nested BOM rollups, real-time shop-floor scheduling, or batch/lot tracking. If you run high-volume production that needs those, Katana or Fishbowl are purpose-built for it. For job-shop and custom-build work, light MRP covers the workflow at a fraction of the cost and setup.

The pricing reality#

MRP pricing is where small shops get surprised:

• Katana starts at $299/mo Core flat with unlimited users, which undercuts our Enterprise tier at base. That $299 is a floor though: sales-order volume, each location past the first, and add-ons stack on top, with traceability at $249/mo, manufacturing management at $199/mo, and warehouse management at $149/mo. Demand forecasting is included in Core.
• Fishbowl starts at $229/mo for 2 users (annual) plus a mandatory implementation package.
• MRPeasy is priced per user from the first seat — $49/user/mo on Starter, $69 on Professional — so a 3-person shop is $147/mo and an 8-person shop is $392/mo.
• InventoryQuick Enterprise is a flat $349/mo — unlimited users, locations, and parts, no usage surcharges, no onboarding fee, set up in an afternoon.

For a small shop, the flat number that covers your whole crew usually beats a lower "starting at" price that climbs with every seat and order.

See how InventoryQuick handles MRP — work orders, cut-list import, and committed-demand purchasing on the Enterprise plan. Start your 7-day free trial (upgrade to Enterprise in-app to unlock MRP).

Related: InventoryQuick vs Katana · InventoryQuick vs Fishbowl · Reorder point formula