SEMA Show 2026 by the Floor Plan: 2,320 Stands, Measured

We measured every booth on the SEMA Show 2026 floor from the show's own published plan: 2,320 stands across five exhibit halls, 2,035 companies, 1,253,268 square feet. This is the second show we have measured this way. The first was RE+, in the same building, seven weeks earlier in the calendar. Reading the two side by side turns out to be more useful than either alone - because they are not remotely the same kind of floor, and an exhibitor who assumes what worked at one will work at the other is planning against the wrong show.

How we measured this

Every figure comes from the SEMA Show 2026 published floor plan, the same plan any visitor can open on the show's own site. Booth polygons are stored in inches, so each stand gives an exact width, depth, square footage and position on the floor.

From the coordinates we derive the thing a booth number cannot tell you: how many sides of each stand face an aisle. A side is closed if another booth runs along it and open if it faces the aisle. That is the real classification, and the build rules key off it - 1 open side is inline (roughly an 8 ft back wall, no hanging sign), 2 is a corner, 3 is a peninsula, 4 is an island with full height and a sign.

Two checks before we trusted any of it. The show's own directory reports 2,042 exhibitors; our geometry yields 2,035 companies across the exhibit halls - independent sources agreeing within a handful. And booth dimensions land on clean trade-show sizes (10x10, 20x20, 20x10), which is what a correctly calibrated scale looks like. Classification was validated against size: 78% of stands over 1,000 sq ft classify as islands and only 2% of 10x10s do, which is the gradient you would expect if the method works.

All figures exclude Hall H, which carries polygons but almost no sold stands - it is special-purpose space, not an exhibit hall, and averaging it in would distort everything. Counts are as the plan stood when measured; floors move as space is resold.

Roughly 10% of the SEMA floor was still unsold

At the time of measuring - months before the November show - 229 stands were still marked available, totalling 100,703 square feet. That is 9.9% of the stands and 7.4% of the floor.

Two things follow from that. If you have been assuming SEMA is sold out, it is worth a call. And if you are already exhibiting, some of that space is next to you - the floor around your stand is not final, and a large neighbour arriving late changes what your booth has to do.

The status field is clean: no available stand carries an exhibitor name, and no named stand is unreserved, so this is the plan's own accounting rather than our inference.

46% of exhibitors cannot hang a sign

A hanging sign is how a stand is seen from across a hall, and it is not available to everyone. Eligibility is decided by how many sides face an aisle, which means it is fixed when you choose your space, not when you design the booth.

Inline and corner together are 1,077 of 2,320 stands. For 46% of SEMA exhibitors, overhead is not an option - height has to be built from the floor up, inside an eight-foot back wall.

The other number worth sitting with: islands are 27% of stands and 65% of the floor. A quarter of the exhibitors occupy two thirds of the hall.

SEMA and RE+ are not the same kind of show

Same convention centre, same year, two completely different floors. This is the comparison a single show's plan cannot give you.

RE+ is a small-stand show with a handful of giants. SEMA is a big-stand show that is more evenly spread. At RE+ nearly half the exhibitors are in the smallest possible stand and the top 100 hold 41% of the floor. At SEMA the median exhibitor has half as much again, the 10x10 is a quarter of the floor rather than nearly half, and the concentration at the top is meaningfully lower.

RE+ is also lopsided by building - its hall medians run from 100 to 600 square feet, so the identical stand reads as substantial or invisible depending which hall it lands in. SEMA's five exhibit halls run 200 to 400. You are competing against a more consistent peer group wherever you are.

The practical consequence: a stand that stood out at RE+ can disappear at SEMA. The median neighbour is 50% larger and two thirds of the floor belongs to islands.

What this means if you are exhibiting at SEMA

The floor plan has already set most of your constraints. Worth knowing which ones.

• Check your class before you design. If you are inline or corner - 46% of the show - no hanging sign, so the visibility budget goes into floor-standing height and light instead.
• Assume large neighbours. Islands hold 65% of this floor. A 200 sq ft stand at SEMA sits in a bigger-average neighbourhood than the same stand at most Las Vegas shows.
• Space may still be available. Roughly 10% of stands were unsold when we measured, including some large blocks.
• Do not reuse a plan from a small-stand show. What reads well on a RE+ floor is being judged against different neighbours here.

For what a stand costs to build and what the show services add on top, see our Las Vegas booth cost guide and the SEMA booth cost page. For who is allowed to install it, the LVCC labor guide. And the companion study: RE+ 2026 by the floor plan.

Frequently asked

How many exhibitors are at the SEMA Show 2026?

We measured 2,320 stands across five exhibit halls belonging to 2,035 companies, totalling 1,253,268 square feet of sold floor. The show's own directory reports 2,042 exhibitors, which matches our count from the plan geometry within a handful.

What is the average booth size at SEMA?

The mean is 599 sq ft but the median is 300, and the median is the more useful number - the average is pulled up by a small number of very large stands, the largest being 30,000 sq ft. A quarter of all stands are 10x10s.

Can I have a hanging sign at SEMA?

Only if your stand is an island or peninsula - 54% of the floor. The other 46% are inline or corner stands, typically limited to about an 8 ft back wall with no overhead sign. It is determined by how many sides of your space face an aisle, so it is fixed when you pick the space rather than when you design the booth.

Is SEMA sold out?

Not when we measured. 229 stands were still marked available on the published plan, about 9.9% of stands and 7.4% of the floor, including some large blocks. Floors move as space is resold, so check the current plan.

How does SEMA compare with other Las Vegas shows?

SEMA is a big-stand show. Against RE+ in the same building, SEMA's median stand is 300 sq ft versus 200, 10x10s are 25% of stands versus 44%, and the top 100 stands hold 34% of the floor versus 41%. A booth that stood out at RE+ is being judged against larger neighbours at SEMA.