Crab house POS system: what to look for before you buy

A standard restaurant POS handles menu items with fixed recipes and stable prices. Crab houses don't work that way. Your product changes size, price, and availability by the day — sometimes by the hour. You sell by the dozen, pound, bushel, or each. You take advance orders for Saturday pickup while still selling walk-ins on Friday.

When a generic POS meets that workflow, staff end up writing the real numbers on a whiteboard behind the counter. The system becomes a credit-card terminal with extra steps.

A POS built for crab houses and seafood markets should handle the things that make your business unique:

• Track live inventory by size — medium, large, jumbo, colossal — not just one SKU.
• Reserve product the moment an order is taken, online or in person.
• Alert the counter before an item oversells, not after the customer drives away.
• Handle combos and specials that mix sizes, species, and sides.
• Support daily price changes without editing every menu item.
• Take advance orders with pickup windows so the steamer schedule is clear.

Use this checklist when you evaluate any system for your crab house or seafood market:

• Real-time inventory tracking by size and unit (dozen, lb, bushel, each).
• Oversold alerts before checkout, not after payment.
• Combo builder with fixed items and customer-pickable slots.
• Integrated online ordering with pickup windows.
• Card processing that works in-person and online.
• Customer CRM for phone numbers, emails, and order history.
• Reports that show sales by size, product, and time of day.
• Fast staff training — cashiers should be productive in minutes.

• Can the system prevent overselling by size when multiple cashiers are taking orders?
• Can customers order online for a specific pickup date and time?
• Can I build combos that mix fixed items with customer choices?
• Does it track customer contact info and order history for marketing?
• How long does it take to train a cashier on a busy Saturday?
• Can I change prices daily without breaking online ordering?

CrabHub was built for this exact workflow. Inventory is tracked by product and size in real time. Oversold alerts fire before an order is finalized. Combos can mix fixed items and customer picks. Online ordering, card payments, and customer records are built in, not bolted on.

If you're evaluating a crab house POS system, book a walkthrough and we'll run through a Saturday rush scenario — from phone orders and walk-ins to online checkout and the nightly close.

Once your POS is in place, the next problem is inventory. Read our seafood inventory management guide to see how crab houses move from clipboards to automated stock tracking.