How to Measure Your Store for Gondola Shelving

To measure your store for gondola shelving, record the length of every wall you will use, the ceiling height, the location of doors, windows, outlets and columns, and the total open floor area. Then convert those numbers into section counts and aisle widths before you order anything. Ten careful minutes with a tape measure prevents the most expensive mistake in fixture buying: a run that is six inches too long.

What you need

• A 25-foot tape measure, or a laser measure
• Graph paper or a notes app
• A pencil and a helper, since long walls are awkward alone
• Painter's tape for marking the floor

Step 1: Sketch the room

Draw the outline of the store roughly to scale. It does not need to be pretty. It needs to show every wall, every opening and every obstacle. Label the entrance, the checkout counter, the back room door and any windows. This sketch is the document you will carry into every later decision.

Step 2: Measure wall lengths

Measure each wall from corner to corner along the floor, not at eye level, since walls are not always perfectly straight and baseboards or trim can change the reading. Then measure the usable length of each wall, meaning the part not interrupted by doors, windows, thermostats or fire equipment. Write both numbers: total length, and usable length.

Step 3: Measure height

Measure from the floor to the ceiling, and also to the lowest obstruction, such as a sprinkler head, light fixture, duct or soffit. Tall wall units need clearance. If your ceiling is high, the limit is usually what you can reach and see, not the ceiling. See gondola shelving heights compared.

Step 4: Mark obstacles and utilities

Note outlets, light switches, data jacks, floor drains, HVAC vents and anything that will be covered by shelving. A shelf in front of a thermostat or panel can cause trouble, and some obstructions, like fire panels or extinguishers, must stay accessible. Check local rules with your landlord or inspector if you are unsure.

Step 5: Measure the open floor

Measure the length and width of the open floor in the middle of the store, and note columns. This is where islands go, along with the aisles around them.

Step 6: Convert to sections

Gondola sections come in standard lengths, commonly 4 feet, though you should confirm the length for any product you buy. Divide usable wall length by the section length and round down. A 22-foot wall using 4-foot sections fits five sections, with 2 feet left over. You can use that leftover space for a narrower unit, filler or breathing room beside a door.

Remember that a run also has end hardware. Check each product's actual overall length, since a five-section run may measure slightly more than five times the section length once uprights and end pieces are counted.

Step 7: Plan the aisles

Shelves are only half of the layout. The rest is walking space. As a general planning rule, main aisles need to be wide enough for two customers to pass or for a cart or stroller, and secondary aisles can be narrower. Accessibility rules may set minimums for your location. We cover typical numbers in gondola aisle width guidelines.

A worked example: a room 30 feet wide with wall units 18 inches deep on each side leaves about 27 feet in the middle. If you place a double-sided island 30 inches deep in the center, you have roughly 12 feet of floor on each side. That is comfortable for aisles with room to spare, so you might add a second island or a wider aisle for displays.

Step 8: Tape it on the floor

Before you order, lay painter's tape on the floor to mark where every run will go. Walk the paths as a customer would. Open the doors. Pretend to push a cart. Taping reveals problems that a drawing never does, such as a run that blocks the entry or an aisle that feels tight at the register.

Step 9: Write your shopping list

Turn the layout into a list: how many starters, how many add-ons, what heights, which finish, how many shelves and which accessories. See starter vs. add-on units and how many sections you need.

Common measuring mistakes

• Measuring only the top of a wall, then discovering the baseboard changes the fit.
• Forgetting to subtract door swings and window sills.
• Ignoring floor slope. Uneven floors need leveling, as covered in how to level gondola shelving.
• Designing to the exact inch and leaving no tolerance.
• Forgetting that freight needs a path into the building. See the freight delivery checklist.

Frequently asked questions

Should I measure in feet or inches?

Use inches for everything and convert at the end. It avoids mixed units and rounding errors.

What if my walls are not square?

Measure at several points. If a wall is out of square by more than an inch or two, tell us. A run against a bowed wall may need shimming.

Can you check my plan?

Yes. Send your sketch and measurements to us through the contact page or call (609) 635-3005.

Next steps

Once you have your numbers, choose between wall units and island units, or browse all gondola shelving. For the strategy behind the mix, read wall vs. island layout strategy.