'Other Structures' (Coverage B): Your Garage, Fence, and Shed Live in a Different Bucket

A homeowners policy does not insure 'your property' as one pot of money. The main house sits in Coverage A. Detached structures — the garage, shed, fence, gazebo, pool house, and in-ground pool in many forms — sit in Coverage B, 'Other Structures,' with a separate and usually much smaller limit, often set automatically at 10% of Coverage A. When a storm flattens a large detached workshop or a fence line runs around an acre, that default percentage can be exhausted long before the repairs are — and business or rental use of a detached structure can remove coverage altogether.

What belongs in Coverage B

Other structures are structures on the residence premises that are separated from the dwelling — by clear space, or connected only by a fence, utility line, or similar link, as most forms define them. The regular residents of Coverage B: detached garages and carports, sheds and barns, fences and retaining structures, detached decks and gazebos, pool houses, and frequently in-ground swimming pools and their equipment, depending on the form. Attached structures, by contrast, are usually part of the dwelling under Coverage A — which is why the exact point of attachment sometimes becomes a claim argument.

The default limit is commonly 10% of Coverage A, and on many forms that amount is in addition to the dwelling limit rather than carved from it — a genuinely favorable feature policyholders overlook. But 10% is a default, not a measurement: nobody priced your specific workshop, barn, and 600 feet of fencing when the percentage was applied.

How it appears in your policy language

Find Coverage B — Other Structures and its limit on the declarations page, then read the Coverage B exclusions with care. Two recur constantly. First, most forms exclude or restrict structures used in whole or in part for business purposes — the detached garage housing a repair business or inventory may need a different policy or endorsement. Second, structures rented or held for rental to non-residents — a detached apartment or a garage rented to a neighbor for storage — are commonly excluded unless endorsed.

Also check sheds and small structures for valuation terms: some forms settle certain other structures on an actual-cash-value basis even inside a replacement-cost policy, and fences are a frequent ACV item. The settlement basis for B can differ quietly from the settlement basis for A.

How disputes typically arise

The exhausted bucket. A detached garage with an apartment of tools, a barn, and a long fence line are damaged in one storm; the combined replacement cost dwarfs 10% of Coverage A, and the claim stops at the B limit.
Business-use denials. The workshop was the base of a side business — equipment, inventory, client vehicles — and the carrier applies the business-use exclusion to the structure, not just the business property inside it.
Attachment arguments. A garage connected by a breezeway, roof, or shared wall is argued into A or B depending on which limit serves the party arguing — the form's definition of 'separated by clear space' decides.
Fence valuation fights. Long fence runs priced by the carrier on a depreciated ACV basis while the homeowner expected replacement cost — plus disputes over how much of a shared boundary fence is 'their' structure at all.

What you can do

Inventory your other structures honestly: walk the property, list every detached structure and fence line, and estimate replacement cost including today's lumber and labor — then compare the total against your Coverage B limit.
Raise Coverage B if the inventory exceeds it. The increase is a standard endorsement and usually inexpensive relative to a total loss of a workshop or barn.
Disclose business and rental uses of detached structures to your agent in writing and get the right endorsement or policy; an undisclosed use discovered after a loss is the worst version of this conversation.
After a loss, document each structure separately — photos, dimensions, materials — so the B-limit allocation is a deliberate accounting rather than an afterthought, and check the settlement basis applied to each item.

Coverage B vs. Coverage A: why the bucket matters

The bucket decides three things at once: the limit available, the exclusions that apply, and sometimes the valuation basis. The same square footage is insured differently depending on whether it is attached to the house or stands across the yard. That is why two neighbors with identical garages — one attached, one detached — can receive very different settlements from the same storm. Neither result is a trick; both are the policy's architecture. The homeowner's leverage is entirely before the loss: measure what stands in the yard, price it, and set the B limit to the measurement instead of the default.

The walk-around inventory, done properly

A Coverage B inventory takes an hour and should be repeated after any outbuilding project. Walk the property with a phone and a tape measure. For each structure — garage, shed, barn, workshop, pool house, greenhouse — record dimensions, wall and roof materials, foundation type, age, and any interior finish or systems (electrical, plumbing, heating), because a finished, heated workshop replaces very differently from a shell. Photograph all four sides and the interior.

Add the linear feet and material of every fence run, and note specialty items the default percentage never contemplated: a dock, a detached outdoor kitchen, a large carport. Price the total conservatively at today's costs. That single number — your measured Coverage B need — is what to hand the agent at renewal, replacing the automatic 10% with a figure derived from your actual yard. Keep the inventory with the policy; after a storm, it doubles as your scope documentation.

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Common questions

Is my fence really insured? It seems too minor.

Yes — fences are a classic Coverage B item on most forms, subject to the B limit and often settled on an ACV basis. On large properties the fence alone can be a five-figure replacement, which is why it belongs in the inventory.

My detached garage is rented to a neighbor for storage. Covered?

Commonly not under the standard form — structures rented or held for rental to others are typically excluded from Coverage B unless the use is disclosed and endorsed. The same issue arises with detached apartments and ADUs.

Can I increase Coverage B without raising Coverage A?

Generally yes. Other-structures limits can usually be increased by endorsement independently, based on your own inventory of what the detached structures would cost to replace.

A tree fell on both my house and my detached garage in one storm. One claim or two?

Typically one occurrence with damage allocated between Coverage A and Coverage B, each subject to its own limit, with the deductible applied as the form provides. The allocation matters because the two buckets do not share limits.

Keep reading

Insurance rules change — verify current requirements with the NAIC or your state’s insurance department.

Educational content, not legal advice. Deadlines, rules, and coverage vary by state, carrier, and policy — read your policy and consult a licensed professional for your situation.