A standard Langstroth bee hive box measures 19 7/8″ long × 16 1/4″ wide (10-frame) or 14″ wide (8-frame). Box depth comes in three sizes: deep (9 5/8″), medium (6 5/8″), and shallow (5 11/16″). Use our calculator above to find the right configuration for your colony — or scroll down for the complete printable dimension reference.
Whether you’re building your first hive from scratch, buying equipment from a manufacturer, or checking whether a replacement frame will fit your existing box — hive dimensions matter. Off by even 3/8 of an inch and your bees will glue the frames shut with propolis. This page covers every standard Langstroth measurement used in the US: box sizes, frame sizes, entrance hole dimensions, and the 8-frame vs 10-frame comparison. Jump to any section using the links below.
Jump to:
- Standard Bee Hive Box Sizes (10-Frame)
- 8-Frame Bee Hive Dimensions
- Bee Hive Frame Sizes
- Bee Hive Entrance Sizes
- 8-Frame vs 10-Frame Comparison
- Hive Sizes for Other Bee Species
- Frequently Asked Questions
Standard Bee Hive Box Sizes (10-Frame Langstroth)
The three standard 10-frame Langstroth box depths share identical length and width — only the height changes depending on their purpose in the hive stack.
| Box Type | Primary Use | External Length | External Width | Depth | Full Weight |
|---|---|---|---|---|---|
| Deep (Brood Box) | Brood chamber, queen laying area | 19 7/8″ | 16 1/4″ | 9 5/8″ | 80–90 lbs |
| Medium (Illinois Super) | Honey storage, versatile brood | 19 7/8″ | 16 1/4″ | 6 5/8″ | 50–60 lbs |
| Shallow (Honey Super) | Honey harvesting, easiest to lift | 19 7/8″ | 16 1/4″ | 5 11/16″ | 35–40 lbs |
Internal dimensions (10-frame, all depths): Length 18 3/8″ · Width 14 3/4″
These dimensions have been the US industry standard since the 1860s, rooted in Lorenzo Langstroth’s 1852 discovery of bee space — the critical 3/8″ gap bees need to move between combs without sealing or destroying them. Because of this standardization, boxes from different US manufacturers are interchangeable. Note that individual manufacturers may vary by up to 1/16″; always verify with calipers if mixing brands on a precision build.
8-Frame Bee Hive Dimensions
The 8-frame hive shares the same length and depth as the 10-frame system, but is 2 1/4″ narrower. This single dimensional difference makes the two systems completely incompatible — you cannot stack an 8-frame box on top of a 10-frame box.
| Box Type | External Length | External Width | Internal Length | Internal Width | Depth |
|---|---|---|---|---|---|
| Deep | 19 7/8″ | 14″ | 18 3/8″ | 12 1/2″ | 9 5/8″ |
| Medium | 19 7/8″ | 14″ | 18 3/8″ | 12 1/2″ | 6 5/8″ |
| Shallow | 19 7/8″ | 14″ | 18 3/8″ | 12 1/2″ | 5 11/16″ |
A full 8-frame deep box weighs approximately 60–75 lbs — roughly 10–15 lbs lighter than the equivalent 10-frame deep at 80–90 lbs. That weight difference is the primary reason beekeepers with back problems or older beekeepers switch to the 8-frame system.
Bee Hive Frame Sizes — Deep, Medium & Shallow
All standard Langstroth frames share the same 19″ top bar length. Only the height differs by box type.
| Frame Type | Top Bar Length | Frame Height | Sidebar Width | Fits Box |
|---|---|---|---|---|
| Deep Frame | 19″ | 9 1/8″ | 1 3/8″ | Deep hive body |
| Medium Frame | 19″ | 6 1/4″ | 1 3/8″ | Medium super |
| Shallow Frame | 19″ | 5 3/8″ | 1 3/8″ | Shallow super |
| Jumbo Frame | 19″ | 11.2″ | 1 3/8″ | Jumbo/Dadant body |
The bee space rule — why these dimensions exist: The 1 3/8″ sidebar width creates self-spacing between frames. When frames are placed side by side, the resulting gap between adjacent combs is exactly 3/8″ — the bee space Langstroth identified in 1852. Below 1/4″, bees fill the gap with propolis and seal frames solid. Above 3/8″, bees build burr comb between the frames. The 1 3/8″ sidebar is what keeps your hive manageable.
US frames from different manufacturers are interchangeable within the same box type, provided both follow the standard dimensions above. UK and Australian frames use different measurements and are not compatible with US Langstroth equipment.
Bee Hive Entrance Sizes — Hole, Reducer & Opening Dimensions
Full Entrance (No Reducer)
| Hive Format | Width | Height | Approx. Area |
|---|---|---|---|
| 10-frame bottom board | 19 7/8″ | 3/4″ | ~11 sq in |
| 8-frame bottom board | 14″ | 3/4″ | ~7.9 sq in |
Notably, research by Dr. Tom Seeley at Cornell University found that wild honey bee colonies in tree cavities prefer an entrance of approximately 10 cm² (~1.5 sq in). A standard commercial Langstroth hive’s full opening is more than 4× larger than bees’ natural preference — which is why entrance reducers matter.
Standard Entrance Reducer — Two-Position Openings
| Position | Opening Width | Opening Height |
|---|---|---|
| Small | 1-3/8″ | 3/8″ |
| Large | 3-3/8″ | 3/8″ |
Entrance Reducer Lengths
| Hive Format | Reducer Length |
|---|---|
| 10-frame | 14-3/4″ |
| 8-frame | 12-1/8″ |
| Nuc (5-frame) | 7″ |
When to Use Each Entrance Size
| Season / Colony Situation | Recommended Entrance |
|---|---|
| New package or small colony (spring) | Small opening (1-3/8″) |
| Established colony in spring/fall | Large opening (3-3/8″) |
| Nectar dearth or robbing pressure | Small opening (1-3/8″) |
| Peak summer nectar flow | Fully open (no reducer) |
| Winter — cold climate | Small opening or fully closed mouse guard |
| Strong colony at peak season | Fully open |
8-Frame vs 10-Frame Bee Hive — Size Comparison
| Factor | 10-Frame | 8-Frame |
|---|---|---|
| External width | 16 1/4″ | 14″ |
| Frames per box | 10 | 8 |
| Full deep box weight | 80–90 lbs | 60–75 lbs |
| Compatible with each other? | ❌ No | ❌ No |
| Closer to wild tree cavity? | Wider than most wild cavities | Closer to natural hollow tree |
| Winter cluster management | May leave outer frames unused | Better cluster cohesion |
| Equipment availability | Industry standard — widest selection | Growing — now widely available |
| Best for | Commercial operations, maximum honey production | Backyard beekeepers, back issues, older beekeepers |
The 10-frame system is the US industry standard and the easiest to source equipment for. If you’re a first-time beekeeper with no physical limitations, start with 10-frame. If you’re managing hives solo and lifting heavy boxes is a concern, 8-frame deeps are meaningfully lighter — the 10–15 lb difference per box adds up fast when you’re lifting full honey supers in July.
Hive Sizes for Other Bee Species
Bumble Bee Hive Size
Wild bumble bee colonies are far smaller than honey bee colonies — typically 50 to 400 bees, compared to 20,000–80,000 in a healthy honey bee hive. A commercial bumble bee pollination box measures roughly 6″ × 6″ × 8″, a fraction of the size of a 10-frame Langstroth deep (19 7/8″ × 16 1/4″ × 9 5/8″). In nature, bumble bees typically nest underground in abandoned rodent burrows rather than in exposed cavities.
Carpenter Bee “Hive” Size
Carpenter bees are solitary — they do not build hives or colonies. A single female bores a circular tunnel approximately 1/2″ in diameter and 6–10″ deep into untreated softwood (pine, cedar, redwood). There is no colony, no comb, and no honey production. To attract carpenter bees as pollinators, drill 1/2″ holes into untreated pine or cedar boards.
Mason Bee House Hole Dimensions
Mason bees are solitary pollinators that lay eggs in pre-existing tunnels rather than building comb. They prefer holes 5/16″ to 3/8″ in diameter and at least 6″ deep. Commercial mason bee houses use tubes of these dimensions. Mason bees do not produce honey and are not compatible with Langstroth equipment.
Native/Stingless Bee Hive Size
Native stingless bees (Meliponini species), used in small-scale beekeeping in tropical regions, require far smaller boxes — typically 8″–12″ cube enclosures. Their hives use resin-based structures rather than wax comb and are not compatible with any standard Langstroth equipment.
Frequently Asked Questions — Bee Hive Sizes
What is the standard size of a bee hive?
The standard US bee hive (Langstroth) box is 19 7/8″ long and 16 1/4″ wide (10-frame). Depth varies by purpose: deep boxes are 9 5/8″ tall for the brood chamber, mediums are 6 5/8″ tall for honey or brood, and shallows are 5 11/16″ tall for honey harvesting. These standardized dimensions allow equipment from different US manufacturers to be interchangeable.
What is the size difference between an 8-frame and 10-frame bee hive?
Both share the same length (19 7/8″), but a 10-frame box is 16 1/4″ wide while an 8-frame box is 14″ wide. The 2 fewer frames result in a 10–15 lb lighter box when full of honey. The two formats are not compatible — you cannot mix 8-frame and 10-frame equipment in the same hive stack.
What size are bee hive frames?
Standard Langstroth frames have a 19″ top bar length across all sizes. Height varies: deep frames are 9 1/8″, medium frames are 6 1/4″, and shallow frames are 5 3/8″. All frames have a sidebar width of 1 3/8″, which creates the critical 3/8″ bee space when placed side by side in the box.
What size entrance reducer should I use?
Standard entrance reducers have two positions: a small 1-3/8″ opening for new packages, winter, or robbing pressure, and a larger 3-3/8″ opening for growing colonies in spring and fall. In summer peak season, most beekeepers remove the reducer entirely for maximum ventilation and bee traffic flow.
What is the best bee hive size for beginners?
Most beekeeping experts recommend starting with a single 10-frame deep box as the brood chamber, then adding a medium super once the colony fills 80% of the frames. The 10-frame system offers the widest equipment compatibility and is easiest to source in the US. If lifting heavy boxes is a concern, start with 8-frame deeps instead — they weigh 10–15 lbs less when full.
What size hardware cloth works for a screened bottom board?
Use #8 hardware cloth (8 openings per inch, approximately 0.1″ opening) for screened bottom boards. This mesh size allows varroa mites to fall through while preventing bee escape. The screened bottom board dimensions match the hive body: 19 7/8″ × 16 1/4″ for 10-frame hives.
What size nails or screws should I use to assemble a bee hive?
For assembling hive bodies from 3/4″ lumber, use 1-5/8″ to 2″ coated nails or #6 exterior screws (1-5/8″). For frame assembly, 3/4″ wire nails or small wire staples are standard. Always use zinc-coated or stainless steel hardware — untreated steel will rust in the outdoor hive environment.
How big is a bumble bee hive compared to a honey bee hive?
A honey bee colony holds 20,000 to 80,000 bees in a Langstroth hive stack typically 24″–36″ tall. A bumble bee colony is far smaller — just 50 to 400 bees — fitting in a box roughly the size of a shoe box (6″ × 6″ × 8″). Wild bumble bees most commonly nest underground in abandoned rodent burrows rather than in above-ground boxes.