Warehouse Management for Distributors: Layout, Labor, and Accuracy

Travel time is most of a picker's day in a broadline building. If your top 80 SKUs by hits sit in reserve because 'that is where they have always been,' you are paying for cardio. Forward-pick the high-hit items next to pack, keep medium movers in a zone you can walk without a PIT every line, and put dogs in reserve with a replenishment trigger that actually fires.

Worked travel. A 28,000 sq ft building, 1,900 SKUs, average walk 180 feet per line. At 140 lines a day and 3.5 seconds per 10 feet, that is about 2.5 hours of walking. Moving the top 60 hit SKUs 80 feet closer saves roughly 50 minutes a day — call it 0.8 of a person, or $28,000–$35,000 loaded a year before you buy a conveyor. Slotting is a labor budget.

Re-slot after peak, not during it. A quarterly hit-list from the WMS (or from invoice lines if you are still on paper locations) is enough. Do not re-slot because a sales manager likes the brand at eye level. Buyers do not walk your aisle. Pickers do.

The ASN is a claim. Count, condition, lot, and expiry get checked before the stock is saleable. A 'receive all' click on a 40-line ASN is how you sell 12 cases you never got and then argue with the supplier from a hole. Blind count the A items and any vendor with a claim history. Sample the rest. Document the short before the driver leaves when you can.

Directed put-away beats 'Joe knows.' If overflow lives in the trailer lane and in a cage labeled Christmas, cycle counts are theater. One location per pallet, a system that will not let you put an item where it does not belong, and a same-day put-away rule for A items. Dock-to-stock over 24 hours on A items is a fill-rate problem, not a space problem.

GS1 barcode and GTIN practice is how you stop typing. If the supplier will not send a scannable GTIN, print your own label at receive and never let the unlabeled inner into forward pick. Mis-picks start as unlabeled inners.

Distributor orders are 8–40 lines, mixed inner and case, often with a customer-specific label. Batch-pick the small will-call orders; wave the route by cutoff and dock door. A single pick ticket that sends someone from A-aisle to reserve to the cooler three times is a design failure. Zone pick if the building is wide enough that a second handoff is cheaper than the walk.

Scan the item and the location, not just the order. Short-picks and wrong-inners are how banners issue a $75 chargeback on a $22 line. If you cannot scan, you should not promise 99% accuracy to a portal that will fine you for 98%.

Pack is a quality gate. Check count against the order, photograph high-claim accounts, and keep a void-fill standard so LTL damage claims have a chance. A cube that explodes in the trailer is a freight claim you will lose.

OSHA's powered industrial truck rules require training and evaluation for anyone on a PIT. A 'he has been here 12 years' story is not a certificate. Racking damage, dock plates, and pedestrian lanes are the same file. A recordable incident is lost labor, a possible visit, and a customer truck that waited while you filled out paperwork.

Pedestrian and PIT conflict peaks at 2 p.m. when will-call, receiving, and the outbound wave share the same dock. Stagger those three if you can. If you cannot, paint the lanes and enforce them like you mean it. The cheapest slotting project is the one that does not include an ambulance.

Housekeeping is throughput. Cardboard in the aisle is a trip and a missed pick. Assign a 15-minute end-of-shift reset. Buildings that skip it pay in minutes the next morning and in ankles.

Publish a standard: lines per hour by zone, with a different number for case-pick versus inner-pick. If the standard is 80 lines and the zone is running 52, look at travel and location errors before you look at 'attitude.' If it is 110 and accuracy is 96%, you are racing. Slow them down.

Staff to the cutoff, not to the clock. A 2:30 LTL pickup and a 4:00 will-call close are the demand. Flex a part-time closer if Monday and Thursday are 1.6× Tuesday. Overtime above 12% for six weeks is a layout or a volume signal. It is not a badge of honor.

Cross-train receiving and packing so a late container does not steal the entire outbound crew. Write the rule: A-item put-away can pull one picker; C-item put-away waits. Otherwise every inbound becomes an emergency and every outbound wave starts late.

Hits were in reserve, forward pick was a graveyard of last year's promo, and cycle counts disagreed by 6% because overflow had no location. Dock-to-stock on A items was 31 hours. Fill sat at 93% while days on hand sat at 68. The building was full of the wrong work.

Fix order: label every location, move 70 hit SKUs forward, ban overflow without a bin, count the A items weekly, and stop receiving C items to the dock floor. In 10 weeks walk time dropped, fill rose to 97% on A, and they found 140 cases of a live SKU behind a dead display. That 140 cases was a customer they had been shorting.

You do not need a new WMS to do the first 80% of this. You need locations that exist, labels that scan, and a manager who will not let sales park a pallet 'just for a few days' in the travel aisle.

Lines per hour without accuracy is a speed contest. Accuracy without a count program is a hope. Report both, plus dock-to-stock on A items and location integrity (counts that match). If location integrity is under 97%, your other numbers are fiction.

Tie bonuses to the pair — productivity and accuracy — or to neither. A $1-per-line spiff with no accuracy gate will fund chargebacks. A quality-only bonus with no throughput gate will fund a polite, late warehouse.

Review exceptions at the process, not the person, the first time. The second time the same person skips the scan, it is a person. The third time it is a manager who would not act. Customers do not care which of those three it was.

A will-call counter without a dedicated face or a staged rack will raid the wave all afternoon. Stage will-call in a labeled bay by cutoff, and do not let counter traffic walk the reserve. Independents who 'just need to grab it' are why your 2:30 truck leaves at 3:10. Give them a bell and a 10-minute SLA. After 10 minutes they wait in a chair, not in A-aisle.

The returns cage is inventory with a bad attitude. If it shares a wall with forward pick and has no system location, sellable product will hide there and you will reorder it. One location type, one owner, 48-hour inspect. Photograph the defect. That photo is the vendor claim.

Quarantine for damaged inbound belongs next to receiving, not behind the racking. A pallet that failed count should not wander into a pick face because second shift needed the dock door. Tape, a hold status, and a daily list. OSHA walking-working surfaces also care about the pallet you left in the travel lane 'for an hour.'

Directed put-away, replenishment tasks, and scan-mandatory pick pay back when locations exist and the item master is clean. A WMS on top of overflow in the trailer will generate tasks nobody trusts. Spend 60 days on locations and A-item counts before you buy a go-live date.

Barcode quality is a WMS prerequisite. If 15% of inners will not scan, the floor will type, and typing is how you pick the cousin SKU. Print at receive. Refuse unlabeled supplier inners into forward pick. GS1 US is the public door if you need your own GTINs; many distributors should own a prefix rather than inventing 5-digit codes that collide in year three.

Cutover rule: dual-run A items for two weeks. If location integrity is under 97% on the new system, you do not turn off the old tickets. A heroic Saturday cutover is how you miss Monday's banner. Budget the dual-run labor in the project or the project is underfunded.