A standard large storage tote wants a deck about 19 to 20 inches deep and about 18 inches of clear height between tiers. That is sized around the bin most people mean when they say tote: roughly 26 inches on the long side, 18 to 20 inches front to back, and 15 to 18 inches tall once the lid is on. Bin sizes drift between brands and product lines, so pull one of yours out and measure it before anybody cuts lumber.
Depth is only part of the answer. A shelf can be deep enough and still fail you, because fit is 3 measurements, not 1. Here is what each one is and how to check yours.
The 3 numbers that decide whether a tote fits
- Deck depth. The bin has to land fully on the plywood. A large tote runs 18 to 20 inches front to back, so the deck goes 19 or 20 inches. Anything shallower and the front of the bin is carried by nothing but its own lip.
- Clear height between tiers. Measured from the top of one deck to the underside of the shelf above. It is the tote height with the lid on, plus the lid lip, plus a small allowance to lift the bin in and out. For most large totes that lands around 18 inches.
- Run length. How many bins sit side by side. A large tote eats about 26 inches of wall facing the room, so 2 across wants roughly 52 inches of clear shelf and 3 across wants roughly 78.
Miss any one of the 3 and the wall fights you every time you use it. Depth gets most of the attention, and it has its own deep dive: how deep garage shelves should be walks through depth by item, the reach limit, and the car door clearance check you should do before you pick a number. This page is about the other 2, because between them they decide how much of your wall you actually get to use.
Where the space goes
Most of what you lose is the air above the lid
A fixed rack sets its notches every 14 inches, or every 25 inches, because that is the spacing the factory chose. Neither number was picked with your bins in mind.
Put a 17 inch tote under a 25 inch gap and you have 8 inches of dead air sitting above the lid doing nothing at all. That is not a rounding error. Across 4 tiers it is 32 inches, which is most of another shelf. You paid for that wall. It is just parked above the lids where nothing can reach it.
Set the same tiers at 18 inches of clear height and you get the bin, the lid lip, and enough room to slide the tote out like a drawer instead of lifting it over the front edge at chest height. Nothing more than that. Spacing built to the bins you already own is the cheapest capacity in this whole category, because the 2x4 and the plywood get cut to a number either way. Somebody just has to choose the right number.
What each kind of bin wants
Most houses have 2 or 3 sizes of bin, not one. Here are the sizes that keep turning up in garages and basements around here, and the shelf each one asks for. Treat these as a starting point, not a spec sheet, because every brand measures a little differently.
| Bin type | Typical size with the lid on | Deck depth it wants | Clear height per tier | Across a 96 inch run |
|---|---|---|---|---|
| Large tote (the holiday bin, 27 gallon class) | 26 x 19 x 17 in | 20 in | 18 in | 3 |
| Medium tote (18 gallon class) | 24 x 16 x 13 in | 17 in | 15 in | 4 |
| Tall latching tote (40 gallon class) | 27 x 20 x 21 in | 21 in | 23 in | 3 |
| Small utility bin (6 quart class) | 14 x 8 x 5 in | 12 in | 7 in | 6 |
| Banker box or file box | 15 x 12 x 10 in | 14 in | 12 in | 6 |
| The awkward bay (cooler, shop vac, camp gear) | varies | 20 in or more | 24 to 30 in | 1 or 2 |
Read down that table and the case for mixed spacing makes itself. If every tier on the wall is set for the tallest thing in the garage, you throw away 8 inches above every tote. If every tier is set for a tote, the cooler lives on the floor forever. A tall bottom bay, 2 or 3 tote tiers in the easy reach zone, and a shallow top tier for light seasonal items costs the same lumber and holds far more.
How many totes will sit side by side
Width is the number people forget until the shelves are already on the wall. Measure the long side of your bin, decide how many you want across, and multiply. At about 26 inches per large tote, 2 across needs 52 inches and 3 across needs 78.
Then account for the uprights, because that is where the arithmetic bites. The usable width is the clear space between the front posts, not the overall length of the run. A 2x4 post takes about 1.5 inches out of the opening, and there is one at each end of every bay. So a bay that measures 54 inches overall gives you roughly 51 inches of clear shelf, which is an inch short of 2 large totes sitting flat. One inch. That is the difference between a bin you slide in and a bin you wrestle.
This is why I lay the posts out around the bins instead of on an even 4 foot grid. Studs sit 16 inches on center, so there is usually more than one workable spot for a post, and I pick the one that leaves your bins a little room. Keeping bays to a sensible width is also the simplest way to keep a loaded deck flat over the years, which is most of the story behind why garage shelves sag.
Measure it yourself in 2 minutes
You do not need a drawing or a plan. You need 1 tote and a tape measure. Do this before you buy a rack, and before you get on a call with me.
- Grab a bin you actually use, full, with the lid on. The lid is the part that sets your spacing, so it stays on for all of this.
- Measure the long side. That is how much wall each bin takes when it faces the room.
- Measure front to back and add 1 inch. That is your deck depth.
- Measure the height with the lid on and add 2 inches. That is your clear height per tier.
- Decide how many you want across, multiply by the long side, then add about 2 inches per upright. That is your run length.
- Write the 3 numbers in your phone. Depth, clear height, run length. That is the whole specification, and it takes about 2 minutes.
If you own 2 sizes of bin, measure the biggest of each. That gives you 2 tier heights, which is all the information anyone needs to plan the wall properly.
How I build it
The deck gets cut to your bin, not to a catalog number
On the call I ask about the bins before I ask about the wall. What is going on the shelves, roughly how many there are, and how tall they stand with the lids on. Hold one up to the camera and we are done in a minute.
Then the plywood gets cut to that number and the ledger heights get marked off your spacing. Doubled 2x4 ledgers lagged into the studs, front uprights carrying to the floor, cross supports, plywood decks. Strong is the easy part, and it is backed by a workmanship warranty. Fit is the part that takes asking the right questions first, and most jobs still go in inside a day.
If you want the longer version of all of this, with the store-bought rack arithmetic and what depth and spacing do to a whole wall, read the full guide to shelving that fits your storage totes. Downstairs the bins are usually the same but the wall is not, and basement storage shelving covers block walls, the lally column and keeping cardboard off the slab. You can see a real before and after on the home page, or call or text me at (219) 209-2484 and read me your numbers.
Booking a free virtual estimate takes about 10 minutes. Bring your 3 measurements and we will size your custom garage shelving around the bins you already own.
How it works
Get your price on a quick video call
No salesman in your house. No waiting a week for a proposal. Three steps, about ten minutes.
Pick a time
Tell me your town, what you want shelves in, and a couple of day and time windows that work for you.
Quick video call
We hop on a short video call. Show me the space and rough measurements on your phone. That is the whole visit.
Get your price
I price the job right there on the call. No salesman in your house, no waiting a week for a proposal.
Straight answers
Sizing questions people ask me next
Do I measure tier spacing from the top of one shelf to the top of the next?
Measure the clear height instead, which is from the top of the deck up to the underside of the shelf above. That is the space the bin actually has to fit into. If you measure deck to deck you have to subtract the thickness of the plywood and anything framing it, which is usually 1 to 2 inches, and that is exactly the margin people lose when a tote will not clear. Clear height is the number I build to and the number worth writing down.
How many large storage totes fit across an 8 foot shelf?
About 3, with a little room to spare. A large tote takes roughly 26 inches when the long side faces the room, so 3 bins want about 78 inches of clear shelf. A 96 inch bay minus 2 uprights leaves around 93 inches of opening, which takes 3 comfortably and is well short of 4. If you want 4 across you are looking at a run closer to 10 feet, or a smaller bin.
My totes are different sizes. Do all the shelves have to match?
No, and they should not. Mixed spacing is free and it is where most of the extra capacity comes from. A taller bottom bay takes the cooler, the shop vac and the heavy awkward things, which belong low anyway. The middle tiers get set at your large tote spacing because that is the easy reach zone between your knees and your shoulders. The top tier can be shorter and shallower for light seasonal items you touch twice a year.
Is a 16 inch deep shelf ever enough for bins?
For small utility bins, banker boxes and file boxes, yes. Those run 12 to 16 inches front to back and they sit fine on a 16 inch deck. For a large tote it is not enough. A bin that is 19 inches deep on a 16 inch shelf hangs over the front by 3 inches or more, carries its load on the lip, and tips toward you when you pull on it. That is the single most common reason a store-bought rack feels unsafe once it is loaded.
Book it
Let me price your shelves on a quick video call
Pick a couple of windows that work, show me the space on your phone, and you will have a real number before we hang up.