Game Room Flooring Calculator
Multiply room width by length in feet for square footage, then add ten percent waste for plank and roll goods or five percent for tile. A 12 by 20 ft room is 240 sq ft, which is 264 sq ft of plank. Under a slate pool table use a hard surface: foam tile and thick padded carpet let the leg pads sink and pull the table out of level.
Flooring is the line item people leave until last and should do first. Laying a floor around a 900 lb slate table means paying an installer to lift it twice, and choosing the wrong material means a table that slowly goes out of level for reasons nobody can find. The arithmetic is easy. The material choice is the part that matters.
Square feet = width x length. Add 10 percent waste for plank and roll, 5 percent for tile. Then divide by the box coverage and round up. Under a slate table the material must be hard: a pool table puts 700 to 1,000 lb onto a handful of leg pads, and anything compressible lets those pads sink for months.
Flooring calculator
Measure the room, not the area the table sits on. Flooring runs wall to wall, and a bare strip under a bar or behind an arcade cabinet looks worse than it sounds.
Which material for which room
| Material | Typical cost | Waste | Under a slate table? |
|---|---|---|---|
| Luxury vinyl plank | $2.50 to $3.50 / sq ft | 10% | Yes, the default choice |
| Carpet tile | $1.50 to $2.00 / sq ft | 5% | Yes, over a hard subfloor |
| Rubber roll | $3.50 to $5.00 / sq ft | 10% | Yes, but it is overkill |
| Interlocking foam tile | $0.90 to $1.30 / sq ft | 5% | No, the legs will sink |
| Thick residential carpet | $2.50 to $5.00 / sq ft | 10% | No, compression continues for months |
| Sealed concrete | $1.50 to $3.00 / sq ft | - | Yes, but cold and loud |
Full picks with real products are in the flooring roundup, and the trade between the two realistic options is in carpet tile against vinyl plank. The full installation walk-through, including subfloor prep on a basement slab, is in the flooring guide.
Point load, and why foam is the wrong answer under slate
A 7 ft slate pool table weighs around 700 lb and a 9 ft table pushes past 1,000. That load does not spread across the floor: it lands on six or eight leg pads, each maybe four square inches. A thousand pounds across 32 square inches is roughly 31 pounds per square inch under every pad, and a half inch EVA foam tile will compress under that indefinitely.
The consequence is subtle and infuriating. The installer levels the table perfectly on the day. Three months later the roll has drifted, nobody can explain why, and re-levelling fixes it for another three months. The fix is not more shimming, it is a floor that does not compress. Foam tiles are excellent under a dart lane, a bar or an arcade wall and wrong under a slate table.
Buying by the box, and the mistake that costs a whole order
Flooring is sold by the box, not the square foot, and box coverage varies wildly by product: 20 sq ft for one plank product, 72 sq ft for a carpet tile carton. Always work out the box count rather than the square footage, and round up.
Then order it all at once. Flooring is manufactured in dye lots, and a box bought three weeks later can be visibly a different shade in the same room. Running two boxes short and reordering is the single most common flooring regret, and the ten percent waste allowance exists specifically so it does not happen.
Products worth knowing: Allure wide plank and Diflart SPC click lock for vinyl, Petgrow and Altruistic for carpet tile, and Rubber-Cal Elephant Bark in a garage.
Sequence: do this before the table arrives
- Measure and check flatness. Lay a long level across the floor in several directions. More than about an eighth of an inch of deviation over 10 ft needs correcting with a self levelling compound before anything goes down.
- Deal with moisture. A basement slab needs a vapour barrier, and if the room is below grade a dehumidifier protects the floor, the table cloth and the hardwood cradle of a shuffleboard. More in humidity and climate control.
- Lay the floor wall to wall. Not just the visible area. A table will move at some point, and a bare patch where it used to sit is a repeat of the whole job.
- Then book the table delivery. The installer levels on the finished floor. Any flooring change afterwards means paying to re-level.
Once you know the square footage, feed it into the budget planner for a full room cost, and check the table itself fits with the room size calculator. Flooring is priced into all three buildouts.
Frequently asked questions
How do I calculate flooring for a game room?
Multiply the room width by the length in feet to get square feet, then add a waste allowance: ten percent for planks and rolls because of cutting, five percent for carpet tiles because offcuts get reused. Divide by the coverage stated on the box to get the number of boxes, and always round up. A 12 by 20 ft room is 240 sq ft, which is 264 sq ft of plank once waste is included.
What is the best flooring for a game room with a pool table?
Luxury vinyl plank or an equally hard surface. A slate pool table concentrates 700 to 1,000 lb onto a handful of leg pads, and a soft floor lets those pads sink over months, which pulls the table out of level. Carpet tile over a hard subfloor is also fine. Interlocking foam and thick padded carpet are the two to avoid under slate.
Can you put a pool table on carpet?
Yes, and plenty do, but the installer has to level it on the carpet as installed and you should not change the carpet afterwards without re-levelling. Thin commercial carpet or carpet tile over a hard subfloor is fine. Thick residential carpet with a plush underlay is the problem case, because the compression under each leg continues for months after the table lands.
How much waste should I allow when ordering flooring?
Ten percent for plank and roll goods, because every row ends in a cut and the offcut is usually too short to start the next row. Five percent for carpet tile and interlocking tile, where offcuts genuinely get reused at the opposite wall. Add another five percent if the room has an alcove, a chimney breast or any diagonal, since each direction change generates its own waste.
Does game room flooring need underlay?
On a concrete basement slab, yes: a vapour barrier at minimum, and most click-lock vinyl planks either include an attached pad or specify one. In a game room the acoustic benefit matters too, because air hockey and arcade cabinets transmit impact noise into a slab. What underlay must not do is add compressible thickness under a slate table, so keep it thin and firm.
How level does a game room floor need to be?
Flatter matters more than level. An installer can shim a pool table on a floor that slopes consistently, but a floor with a dip or a hump under one leg is a table that never settles. The practical test is a long straightedge or a level laid across the floor in several directions: anything more than about an eighth of an inch of deviation over 10 ft is worth correcting before the flooring goes down.
Measuring your own room before anything is delivered? The Game Room Layout Planner is the paid version of these pages: 8 printable worksheets you fill in with your own numbers, plus the full PDF, $29.
How we work: we compare published manufacturer dimensions, the governing playing standards for each game, and reviews from owners who live with the equipment. We do not test games in person, and we say so on every page. Clearance figures here are researched guidance for planning a room, not professional advice: measure your own space, and have a slate table delivered, assembled and levelled by an installer rather than moving it yourself.