Table of Contents
- The Right Cabinet Is the One That Actually Fits
- What This Guide Does
- Understanding The Size Tiers Of Hidden Wall Gun Cabinets
- Orientation Matters: Landscape, Portrait, and Square
- Wall Mounted Hidden Gun Cabinet Sizes Based On Types Of Firearms
- Common Sizing Mistakes
- Pre-Purchase Sizing Checklist
- The Right Size Is a Measurement, Not a Guess
- FAQs
The Right Cabinet Is the One That Actually Fits
A hidden wall gun cabinet has one job above everything else, to hold your firearm securely and give you access when you need it. That job fails the moment the cabinet is the wrong size.
Most buyers choose a cabinet based on design, finish, and concealment quality. Size gets checked last, sometimes against a product photo rather than a tape measure. The result is a cabinet that looks right on the wall but cannot close cleanly, cannot hold the full loadout, or leaves the firearm shifting inside because the fit is too loose.
What This Guide Does
This guide maps Bellewood Designs hidden wall gun cabinets into clear size tiers and matches each tier to the firearms and loadouts it actually supports. By the end, you will know exactly which size cabinet your firearm requires, and what to measure before purchasing.
Understanding The Size Tiers Of Hidden Wall Gun Cabinets
The hidden wall gun cabinets fall into three size tiers based on internal dimensions. Each tier supports a different firearm type and loadout configuration.
Small Cabinet with Hidden Gun Storage
Internal dimensions: 10–16.5" length x 8–12.5" height x 3" depth
Small cabinets are single-firearm storage solutions. The internal length of 10 to 16.5 inches accommodates one compact, subcompact, or full-size handgun, with limited space for one or two accessories alongside depending on the specific cabinet dimensions. These cabinets come in both landscape orientation (length greater than height) and portrait orientation (height greater than length).
Medium Hidden Gun Wall Cabinet
Internal dimensions: 13–16.5" length x 8–10.5" height x 3" depth
Medium cabinets overlap slightly with the upper end of the small range in length but are optimized for a single full-size handgun with accessories alongside, a magazine, a flashlight, or a speed loader, within the same interior footprint.
Large Hidden Gun Wall Cabinet
Internal dimensions: 34–36.5" length x 11–19" height x 3–5" depth
Large cabinets are where the range opens up significantly. The jump from 16.5 inches to 34 inches of internal length is the defining difference, it is what makes rifles and shotguns stored horizontally viable, and what allows multiple handguns and a full accessory loadout to coexist in the same cabinet.
Several large cabinets include a dedicated lower shelf, typically 36" length x 4" height, for ammunition, magazines, and accessories, keeping the upper firearm compartment clear and organized.
Explore large hidden wall gun cabinets
Orientation Matters: Landscape, Portrait, and Square
Unlike floor safes where firearms are stored vertically, hidden wall gun cabinets store firearms horizontally, the firearm lies lengthwise across the cabinet interior. This makes the cabinet's orientation a direct determinant of what fits.
Landscape Orientation
Length is greater than height. The firearm is stored lengthwise across the wider dimension. Most large cabinets and several small and medium cabinets use this format.
A full-size handgun stored landscape needs a cabinet with at least 8–9 inches of internal length to fit the barrel-to-grip measurement cleanly.
Portrait Orientation
Height is greater than length, the cabinet is taller than it is wide. The firearm is stored lengthwise across the taller dimension.
Portrait cabinets accommodate taller handguns with longer grip frames more naturally than a landscape cabinet of the same footprint. However, a wider full-size handgun may be tighter on the length dimension, always confirm your firearm's longest measurement against the cabinet's longer internal dimension regardless of orientation.
Square Format
Height and length are roughly equal. The most restrictive format in the range, designed for compact and subcompact handguns where neither dimension is generous.
Wall Mounted Hidden Gun Cabinet Sizes Based On Types Of Firearms
Sizing for Handguns
Handguns are supported across all three size tiers. The sizing question is not whether a handgun fits, it is whether your specific handgun, in your specific configuration, fits the cabinet you are considering.
What to Measure
Measure your handgun at three points:
- Overall length: muzzle to the back of the grip, this must fit within the cabinet's longer internal dimension
- Overall height: top of slide to bottom of grip, this must fit within the cabinet's shorter internal dimension
- Width at widest point: typically the grip or any attached accessory, this must fit within the 3–5 inch depth
Always measure the firearm as it will actually be stored, for most handgun owners that means with a fixed optic if one is mounted, but without a detachable weapon light or other removable accessories.
Compact and Subcompact Handguns
Compact and subcompact handguns, typically 5.5 to 7 inches in overall length, fit comfortably across the small and medium tiers. A square-shape cabinet (11.5" x 11.5" internal) is specifically well-suited to this configuration.
Full-Size Handguns
A standard full-size handgun runs 7 to 9 inches in overall length and 5 to 6 inches in height. This fits within most large and medium size gun storage cabinets and the larger small cabinets (16" internal length). A small cabinet at 10.5" internal length will be too tight for a full-size handgun, confirm the longer internal dimension is at least 9 inches before purchasing.
Multiple Handguns
Storing two or more handguns requires a large cabinet. At 34 to 36.5 inches of internal length, a large wall mounted gun cabinet comfortably accommodates two full-size handguns side by side with room for accessories in the remaining footprint, or three compact handguns depending on configuration.
Accessories Stored Alongside the Firearm
Detachable accessories, weapon lights, suppressors, spare magazines, are stored separately in the foam alongside the firearm, not attached to it. Each item needs its own dedicated foam cutout.
Plan the full layout before purchasing. A cabinet sized for the handgun alone with accessories added as an afterthought will feel undersized immediately.
Hidden Gun Wall Cabinet Sizing For Rifles And Shotguns
Rifles and shotguns are supported in the large cabinet tier only. The internal length of 34 to 36.5 inches is what makes horizontal storage of long guns viable, small and medium cabinets do not have the length to accommodate them.
How Rifles and Shotguns Are Stored
All rifle and shotgun storage in cabinets is horizontal, the firearm lies lengthwise across the cabinet interior. This is the same orientation as handgun storage, scaled up.
Hidden Gun Wall Cabinet Sizing For Rifles
Measuring for Rifle Fit
The critical measurement for a rifle is its overall length in stored configuration. For an AR-style rifle with a collapsible or folding stock, measure with the stock in its most compact position, that is how it will be stored.
A standard AR-15 with stock collapsed runs approximately 26 to 32 inches depending on barrel length and configuration. This fits within the 34 to 36.5 inch internal length of a large gun cabinet with room to spare for a magazine or accessory alongside it.
Fixed optics and handguards
Fixed optics and handguards cannot be removed for storage and contribute to the depth requirement. At 3 to 5 inches of internal depth across the large cabinet range, most standard rifle profiles clear comfortably, but confirm your specific configuration against the cabinet's internal depth before purchasing.
Hidden Gun Wall Cabinet Sizing For Shotguns
Compact Configurations Fit, Standard Configurations May Not
A standard full-length shotgun at 45 to 50 inches overall length usually exceeds the internal length wooden cabinet and cannot be stored horizontally without modification.
However, a shotgun in a compact configuration, pistol grip, folding stock, or a shorter-barreled home defense setup, can fit within the 34 to 36.5 inch internal length of a large gun concealment cabinet. Measure your shotgun in its exact stored configuration and confirm it falls within the cabinet's internal length before purchasing.
Common Sizing Mistakes
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Measuring the Firearm Without Checking Cabinet Orientation
A full-size handgun that is 8.5 inches long fits a landscape cabinet with 10.5 inches of internal length, but may not fit a portrait cabinet where the shorter dimension is only 10 inches wide. Always match your measurement to the correct cabinet dimension based on orientation.
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Choosing Based on Exterior Dimensions
Exterior dimensions are always larger than interior dimensions. Frame thickness across the Bellewood range reduces usable space by approximately 1.5 to 2.5 inches per side. Always confirm internal dimensions, those are on every product page.
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Not Planning the Full Loadout
A cabinet sized for the firearm alone with no thought given to magazine storage, accessories, or a second firearm will feel undersized within months. Sketch the full intended layout before purchasing and confirm every item fits within the internal footprint.
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Ignoring Door Clearance
Items packed too close to the door edge prevent full closure and stress the magnetic latch over time. Leave at least half an inch of clearance between stored items and the door perimeter on all sides.
Sizing is one of several decisions buyers get wrong before installation. For the full picture: 7 Mistakes Large Hidden Gun Storage Cabinet Buyers Make
Pre-Purchase Sizing Checklist
| Step | What to Confirm |
|---|---|
| Measure firearm overall length | In exact stored configuration, stock collapsed if applicable |
| Measure firearm height | Grip bottom to slide top including any fixed optic |
| Measure firearm width/depth | At widest point, handguard, grip, or stock |
| Identify cabinet orientation | Landscape, portrait, or square, match firearm's longest dimension accordingly |
| Confirm internal dimensions | Length, height, and depth from product page, not exterior dimensions |
| Plan full loadout layout | Every accessory and magazine allocated a foam slot |
| Check door clearance | Half inch minimum between stored items and door perimeter |
| Consider collection growth | Size for next planned firearm or accessory, not just current loadout |
Before finalising your cabinet choice, confirm your wall type supports your preferred
install style:Which Concealed Gun Cabinet Works on Your Wall Type
The Right Size Is a Measurement, Not a Guess
A hidden wall gun cabinet that fits correctly holds everything securely, closes cleanly, and gives you reliable access when it matters. One that does not fit creates problems that no amount of foam adjustment will fix.
The size tiers, orientation formats, and firearm-specific guidance in this guide remove the guesswork. Measure your firearm, plan your loadout, confirm the internal dimensions, and choose the tier that matches, not the one that looks closest on a product photo.
Explore Bellewood Designs hidden wall gun cabinets, handcrafted from solid wood, custom pluck-foam interior, made in the USA, available in small, medium, and large formats to fit your exact firearm and loadout.
Call us at 1-502-771-1596 to speak with a Bellewood Designs expert about sizing for your specific firearm.