What is lotting?
Lotting is the process of organizing items into numbered lots for an auction — deciding what sells together, what sells separately, and in what order. It's one of the most consequential steps in cataloging a sale.
In auction terms, a lot is a single unit offered for bidding — it might be one item or a group of items sold together. Lotting is the work of deciding how the inventory is divided into those lots, then numbering, describing, and sequencing them. It happens during cataloging, before the sale goes live.
Good lotting is part judgment, part strategy. Splitting a desirable collection into individual lots often draws more bidders and a higher total, while combining slow or low-value items into a bulk lot keeps the catalog tight and the sale moving. Each lot also carries its own description, estimate, and any reserve agreed with the consignor.
Example: a farm estate brings in a tractor, three pallets of hand tools, and a box of vintage signage. The auctioneer lots the tractor on its own (high value, deserves its own spotlight), combines the tools into one bulk lot (not worth cataloging individually), and breaks the signage into separate lots (collectors will bid hard on each piece). That is lotting in practice.
What lotting actually involves.
Single vs. bulk lots
An item can stand alone as one lot, or many similar items can be combined into a single bulk lot when piecing them out isn't worth the catalog space.
Lot numbering & sequence
Each lot gets a unique number that fixes its order in the sale. Sequence shapes pacing, bidder attention, and how buyers plan which lots to chase.
Catalog descriptions
Lotting includes writing the title, condition notes, and details buyers need. Good lot copy reduces disputes and supports stronger bids.
Reserves & estimates
During lotting, consignors and the house set reserves and estimates per lot — the floor price and the expected range that frame each item's sale.
Frequently asked questions
What does lotting mean in an auction?+
Lotting is the work of deciding how items are grouped, numbered, described, and ordered for a sale. Each unit offered for bidding is a lot, so lotting is essentially building the catalog: choosing what sells together, what sells separately, and in what order.
Why does lotting matter?+
Lotting directly affects the hammer total. Smart grouping can raise the value of slow items by pairing them with desirable ones, while splitting a valuable collection into individual lots often attracts more bidders and higher prices. Clear descriptions and a logical sequence keep the sale moving and reduce buyer disputes.
When does lotting happen?+
Lotting happens before the auction goes live, during cataloging. After items are received from consignors and inspected, the house lots, photographs, and describes them, then publishes the catalog so bidders can preview lots ahead of the sale.
Who decides how items are lotted?+
The auction house typically leads lotting, often in consultation with the consignor. Experienced cataloguers weigh buyer demand, item value, and sale flow to decide whether to combine items into bulk lots or break them out individually.
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