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Storage Unit Size Guide

How Big Is a 10x35 Storage Unit? Dimensions, What Fits, and Who It's For

Three hundred and fifty square feet with thirty-five feet of depth. The size that takes the rigs a 10x30 just misses, without the price of a 10x40.

See available 10x35 units Try the size calculator

10x35 Long Bay Plus
10 ftWidth
35 ftDepth
350Sq ft
8-10 ftCeiling
2,800Cubic ft
437 inFloor diagonal

Section 01

What a 10x35 Storage Unit Actually Is

A 10x35 measures 10 feet wide by 35 feet deep: 350 square feet of floor, or a rectangle 120 inches by 420 inches. At the 8-foot minimum ceiling that is 2,800 cubic feet.

It sits between a 10x30 and a 10x40, and the reason to care about those five feet is almost always a specific vehicle. Thirty-five feet takes rigs that a 10x30 will not, without the price and the scarcity of a 10x40.

The Floor, Drawn to Scale

Looking straight down, here is the floor at true proportion with one layer of 18-inch medium cartons across it. Six fit across the 120-inch width and twenty-three run down the 420-inch depth, giving a hundred and thirty-eight per layer.

420 in / 35 ft deep · door on left wall

A hundred and thirty-eight medium boxes per layer. Five safe layers gives about 690 boxes, if the unit holds nothing else.

The Unit in Three Dimensions

Square footage undersells a unit this size, because what you are renting is volume. Both cutaways below show the same 10x35 at the same scale. The only difference between them is how the boxes are stacked.

Stacked five layers high

Cutaway view of a 10x35 storage unit Isometric cutaway of a 10x35 storage unit, 10 feet wide by 35 feet deep with a 8 ft minimum ceiling, drawn to scale. Boxes stacked five layers high to about 80 inches, with the unused headroom dashed. 8 ft minimum 10 ft wide 35 ft deep
About 690 medium boxes. Filled to roughly 80 inches, which is as high as one person can safely stack. The dashed outline is the headroom left above.

One layer on the floor

Cutaway view of a 10x35 storage unit Isometric cutaway of a 10x35 storage unit, 10 feet wide by 35 feet deep with a 8 ft minimum ceiling, drawn to scale. A single layer of boxes on the floor, which is how most units get packed. 8 ft minimum 10 ft wide 35 ft deep
About 138 medium boxes. The same unit, packed the way most people actually pack one, using the floor and almost none of the height.

At this size the gap between those two drawings is enormous. Packing to head height rather than waist height is worth more square footage than most renters would ever pay for.

Five Feet Is a Whole Category of Rig

Between 30 and 35 feet sit a great many travel trailers, fifth wheels and larger boats on trailers. If you measured your rig at 32 or 33 feet overall and found a 10x30 just short, this is the size that solves it.

Section 02

What Fits in a 10x35 Storage Unit

Medium cartons, wall to wall, five layers, nothing else690
Medium cartons, leaving an access path down the length470 to 485
Medium cartons, alongside a vehicle down the centre130 to 175
Standard pallets on the floor, single row with a path12 to 14
Linear feet of shelving, both long walls plus back, five high400
Vehicles, nose to tail2

What Thirty-Five Feet Takes

  • Travel trailers and fifth wheels to about 33 feet, subject to door opening height.
  • Boats on trailers to about 32 to 33 feet overall, measured including the tongue.
  • Motorhomes to about 33 feet, where height allows.
  • Two vehicles nose to tail, with the rear one blocked in.
  • Structural materials in 30 and 32 foot lengths.
  • A vehicle plus shelving down both walls for gear, covers and spares.

Allow three to five feet of margin between the rig and the interior dimension. You need room to walk past it and to close the door behind it.

Check the Door, Not Just the Floor

Interior dimensions are only half the question. The roll-up door opening is narrower and lower than the unit itself, and at this size it is what actually decides whether a tall vehicle, a van with roof equipment or a trailer will go in. Confirm the door opening at the specific facility before booking anything close to the limits, particularly on height.

Storing a vehicle also carries requirements that storing goods does not: proof of current registration and proof of insurance. Motorised vehicles must be operable and free of leaking fluids. Towable trailers, including travel trailers, fifth wheels, pop-ups and utility trailers, do not need to be operable. Our vehicle storage page has the detail.

Shelving Down Both Walls

A 10x35 has 90 linear feet of wall. Shelving along both 35-foot walls and the back gives 80 linear feet of run, and at five shelves high that is about 400 linear feet of shelf. With a vehicle down the centre there is still room for a path on one side and shelving on the other.

Section 03

What Does Not Fit in a 10x35 Storage Unit

Ten Feet Wide Is Still the Hard Limit

  • Two vehicles side by side. Not at any depth.
  • A working bay beside a stored vehicle. A rig in here leaves inches. For that you want a 15x30.
  • Pallet operations. A single row fits; a pallet jack cannot turn.
  • Rigs over about 33 feet, once you allow working margin. For those, look at a 10x40 or parking.
  • Anything taller or wider than the door opening, which is lower and narrower than the unit.

Vehicles and Prohibited Items

  • Vehicles without documentation. Proof of current registration and proof of insurance are required, and motorised vehicles must be operable with no leaking fluids. Towable units need not be operable.
  • Flammable, combustible or hazardous materials: gasoline, propane, paint, solvents, fireworks, ammunition. This catches out contractors and equipment owners more than anyone, so drain fuel before storing.
  • Perishable goods, or anything that attracts pests.
  • Living things, including plants and animals.
  • Anything illegal or stolen.
  • Occupied or operational use. A storage unit is not premises. No working from inside it, no customers, no utilities.

Measure Before You Choose Between 30, 35 and 40

These three sizes differ only in depth, and the right one is decided by a single number: the overall length of your rig, including the trailer tongue and anything projecting at the back, plus three to five feet of margin.

Under 27 feet, a 10x30 costs less. Between 27 and 33, this is your size. Over 33, go to a 10x40. And if the rig is the whole job, a parking space sized by length will be cheaper than any of them.

Our full storage FAQs cover prohibited items in detail, and your rental agreement is the controlling document. At this size, where a unit may hold an entire inventory or a vehicle, read the agreement rather than relying on a general guide, including this one.

Section 04

Who a 10x35 Storage Unit Is Right For

RV and Trailer Owners in the 30 to 33 Foot Range

The reason this size exists. A great many travel trailers and fifth wheels land just over what a 10x30 will take, and this solves it without stepping up to a 10x40.

Boat Owners With Larger Trailers

A hull advertised at 28 feet is routinely 32 on its trailer. Measure overall, then check it against this depth.

Contractors With Long Stock

Thirty and thirty-two foot lengths of steel, pipe and timber, with 400 linear feet of shelf for everything else.

Two-Vehicle Owners Storing Long Term

Two cars nose to tail, where you accept that the back one stays put until the front one moves.

Anyone Who Found a 10x40 Unavailable

There are more of these than there are 10x40s. If your rig fits, this is often the practical answer rather than waiting.

Section 05

How to Know If You Should Size Up or Down

One Measurement Decides This

Overall length of the rig, including the tongue and anything projecting at the back, plus three to five feet of margin. That number chooses between a 10x30, a 10x35 and a 10x40, and nothing else really matters.

A 10x35 Is Right If Any of These Are True

  • Your rig measures 27 to 33 feet overall
  • You want it enclosed rather than parked outside
  • You want shelving around the vehicle for gear
  • A 10x40 is unavailable or materially more expensive
  • You have checked the door opening height

Choose Something Else If Any of These Are True

  • Your rig is under 27 feet, which fits a 10x30 for less
  • Your rig is over 33 feet, which wants a 10x40
  • You need a working bay beside it, which wants a 15x30
  • The rig is the whole job and enclosure is optional, which wants parking
  • You will visit the unit often for general storage

Our storage size calculator builds a recommendation from an item-by-item inventory.

Section 06

How to Pack a 10x35 Storage Unit Efficiently

Thirty-five feet is a long way from the door, so what you can use of this unit is decided by the order you load it in rather than how tightly you pack.

  1. Plan the Layout Before Anything Arrives

    At this size an unplanned load wastes more space than most people rent in total. Decide where vehicles, racking, heavy equipment and boxes go before the first item comes off the truck, and tell whoever is helping.

  2. Racking Beats Stacking, Decisively

    Freestanding shelving or pallet racking along the walls turns floor area into usable volume and keeps everything individually reachable. Above about 300 square feet this is the single highest-return decision you will make.

  3. Keep a Full-Length Aisle, and a Turning Space

    Run a clear path from the door to the back wall, and leave enough room near the door to turn with a hand truck or pallet jack. Losing roughly a third of the floor to access is the correct trade on a unit you will visit.

  4. Heaviest and Least Needed at the Back

    Equipment, appliances and archive stock go furthest from the door. They are also the sturdiest platforms to stack against.

  5. Build Upward to About 80 Inches

    Uniform cartons reach roughly 80 percent volume efficiency against 55 percent for mismatched sizes. On a unit this large that difference is measured in hundreds of cubic feet.

  6. Prepare Vehicles and Fuel-Powered Equipment First

    Drain mowers, generators and power equipment, since fuel is not permitted inside. For a stored vehicle, clean it, inflate the tyres, and disconnect or tend the battery.

  7. Shelving and Long Items First, Vehicle Last

    Everything that lives on the walls goes in before the rig does. Driving the vehicle in first means moving it every time you want something, which nobody keeps doing for long.

  8. Photograph Each Zone and Keep the Map

    On a rental this size, running for a year or more, a few phone photos taken the day you load will save hours later. Label cartons on the face that points at the aisle.

Our full storage tips guide goes further on protecting furniture and preparing equipment for storage.

Section 07

Climate-Controlled or Standard: Which 10x35 to Choose

We offer 10x35 space in both standard and climate-controlled configurations, though availability varies by location and climate control is less common at this size.

Standard Unit

Enclosed and secure, keeping weather and direct sun off everything inside. Interior temperature tracks the outside temperature, which across much of our footprint means well over 100 degrees in summer and below freezing in winter.

Fine for:

  • Vehicles, trailers and towable equipment
  • Tools, machinery and contractor materials
  • Plastic totes, metal shelving and durable goods
  • Lumber, fixtures and non-perishable stock

Climate-Controlled Unit

Temperature-regulated, holding an interior range year round. That protects against the extreme heat and hard freezes that warp wood, crack vinyl, degrade adhesives and damage electronics.

Worth it for:

  • Electronics, screens and anything with a battery
  • Wood furniture, cabinetry and millwork
  • Business records, artwork and instruments
  • Products with a temperature-sensitive shelf life

An Honest Limitation Worth Knowing About

Climate control at our facilities means temperature regulation. It does not mean moisture management, and we do not want anyone assuming otherwise on the strength of the name.

Temperature and moisture are two different threats. If you are storing something genuinely moisture-sensitive, such as documents, leather, upholstery, electronics or finished millwork, a temperature-regulated unit addresses one of those and not the other. Handle the second yourself: seal items in airtight containers rather than cardboard, add desiccant inside them, and keep everything off the concrete on pallets or risers. Those steps cost very little and do more for moisture-sensitive goods than any unit type will.

At this size, where a single tenant may be storing an entire inventory, that distinction is worth acting on rather than noting.

More detail is on the climate-controlled storage page.

Section 08

What a 10x35 Storage Unit Costs and How to Think About Value

What a 10x35 costs depends on your market, the specific facility, whether the unit is climate-controlled and what is available when you book. Rather than publish a range that goes stale, we point you at live pricing for the locations near you.

The Cost Logic That Does Not Change

  • Larger units cost less per square foot, but the curve flattens at the top of the range. The saving from stepping up is real between small units and much smaller between large ones.
  • Availability is the real constraint at this size. There are far fewer of these than there are 10x10s, and they do not come free often. If one is available where you need it, that matters more than a small price difference.
  • Compare against commercial rent, not against other units. For a business, the useful comparison is the price per square foot of warehouse or flex space in your market, plus its lease term, deposit and build-out. This is usually not close.
  • Two units can beat one. Check a 10x35 against two 10x30 units at the locations near you. One is simpler; two are sometimes cheaper and let you separate what you need from what you do not.

What Is Included, and One Thing We Cannot Do

Every rental includes a free lock, month-to-month terms with no long-term contract, and 24/7 gate access at nearly all locations. A protection plan is required at checkout at all of our facilities. Check first whether your existing business or homeowner policy already extends to goods stored off premises, and read your rental agreement for what the plan does and does not cover.

Our facilities are fully automated and unstaffed. You rent online, your gate code arrives by email and text, and you go straight to the unit. Because nobody is on site, we cannot accept deliveries on your behalf. That matters more at this size than any other, because businesses renting 10x35 space often assume inventory can be shipped straight to the unit. It cannot. If your operation depends on that, this is not the right fit, and it is better to know now. More on how our facilities work is on the why choose 10 Federal Storage page.

How Big Is a 10x35 Storage Unit?, Frequently Asked Questions

A 10x35 is 10 feet wide by 35 feet deep, for 350 square feet of floor. At the 8-foot minimum ceiling that is 2,800 cubic feet.

Travel trailers, fifth wheels and motorhomes to about 33 feet overall, once you allow three to five feet of working margin. Height is usually the deciding factor rather than length, because the door opening is lower than the ceiling, so confirm door dimensions before booking.

Decided entirely by the overall length of your rig plus margin. Under 33 feet, a 10x35 costs less and is easier to find. Over 33 feet, you need the 10x40.

Under about 27 feet overall, a 10x30 will do and costs less. Between 27 and 33 feet, you want the 10x35. Measure including the trailer tongue, not just the hull or the model length.

A boat on a trailer to about 32 or 33 feet overall, measured including the tongue rather than the hull. Confirm door opening height for anything with a tower, arch or tall console.

About 690 medium cartons wall to wall, five layers high, with nothing else inside. Leave an access path down the length and the figure is 470 to 485. Alongside a vehicle, plan on 130 to 175.

Nose to tail, yes. Side by side, no, because the unit is only ten feet wide. The vehicle at the back cannot be moved without moving the one in front.

Between 8 and 10 feet depending on the building. Figures on this page use the 8-foot minimum. For RVs and boats the door opening height matters more than the ceiling, so confirm it before booking.

If the rig is the whole job and enclosure is optional, a parking space sized by length is cheaper, has no door opening to negotiate, and takes longer rigs. Choose an enclosed unit when enclosure matters or you want shelving around the vehicle.

Shelving along both 35-foot walls and the back gives 80 linear feet of run, and at five shelves high that is about 400 linear feet of shelf, with room for a vehicle down the centre.

Reserve a 10x35 Storage Unit Near You

The 10x35 exists for one reason: a great many rigs measure 30 to 33 feet overall and a 10x30 will not take them. If that is you, this solves it without stepping up to a 10x40. Measure including the trailer tongue, allow three to five feet of margin, and confirm the door opening height.

See available 10x35 units and pricing Compare all unit sizes