How Many Bed Bug Interceptors Do You Need?

Count

Count the legs, add the sofas and chairs, and the calculator picks the packs that cover them with the fewest spare cups.

Beds Legs on each bed Sofas Chairs

6 cups

One 8-pack covers it, with two to spare.

See the interceptor cups

Square or wide legs need XL cups: measure the foot of the leg before you buy.

Where the count comes from

A cup goes under each leg of each bed, which is how the EPA and Texas A&M place them. Texas A&M counts a minimum of twelve to monitor a typical two-bedroom apartment: four per bed, and two per sofa and recliner.

If watching for bed bugs matters more than protecting a bed, Texas A&M notes that two cups per bed are enough.

Count every leg

Queen and king frames often have a center rail with one or two extra feet, and some have more. Each foot that touches the floor needs a cup, or a bug walks up the one that has none.

Keep the bed an island

The cups only work if the legs are the only way up. Pull the bed a few inches from the wall, keep the nightstand off the frame, and tuck the bedding so nothing touches the floor.

This is general information about keeping bed bugs out of a bed, not pest control or medical advice. A licensed pest professional, your doctor and the maker's own instructions come first.

What the public sources say

Texas A&M AgriLife Extension, "What is a bed bug interceptor?". Explains that bed bugs climb slippery vertical walls poorly, puts a cup under each bed post with the bed off the walls and no bedding on the floor, counts at least 12 cups for a two-bedroom apartment, and cleans them at least once a month. Read October 30, 2026.
U.S. EPA, "Do-it-yourself Bed Bug Control". Says to set interceptors under each leg of infested furniture, move it a few inches off the walls with no linens touching the floor, check and clean the interceptors every week, keep inspecting at least every 7 days, and use covers that seal mattresses and box springs so bed bugs inside die. Read October 30, 2026.
University of Kentucky Entomology, ENTFACT-636 "Bed Bugs". Says bed bugs zipped inside an encasement eventually die, that an encasement does not stop a bug from climbing onto the bed, that a trap under each leg with the bed pulled off the wall makes the bed an island, and that a dryer at medium-to-high heat for 10 to 20 minutes kills all life stages. Read October 30, 2026.

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How many bed bug interceptors your home needs

Where the count comes from

Count every leg

Keep the bed an island

Shop the cups

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