How to Level a Pool Table: Step-by-Step Guide

To level a pool table, place a carpenter's or machinist's level at the center and along each rail, then adjust the leg levelers or add shims under the legs until the bubble sits centered in every direction. Most modern tables use adjustable leg levelers you turn by hand or with a wrench, while older or slate tables may need shims placed under the legs or frame. Recheck the level after each adjustment, since tightening one leg often shifts the reading on the others.

Signs Your Pool Table Isn't Level

Before grabbing tools, confirm the table actually needs leveling. Common signs include:

• A stationary ball rolls off on its own toward one pocket or rail
• Bank shots consistently miss short or long in one direction
• A cue ball rolled slowly across the cloth curves instead of traveling straight
• One or more legs visibly rock or don't sit flush with the floor

If you notice any of these during play, the table's frame or slate is out of level, not the cloth or cushions.

Tools You Need to Level a Pool Table

Gather these before you start:

• Carpenter's level (24 inch or longer) or a machinist's level for higher precision
• A set of shims (wood, plastic, or composite) in varying thicknesses
• A wrench or hex key that matches your table's leg leveler bolts
• A cue ball for the roll test
• Optional: a smartphone leveling app as a quick secondary check

A machinist's level is far more sensitive than a standard carpenter's level and is the tool most installers use for tournament-grade accuracy. For everyday home play, a good carpenter's level is usually accurate enough.

How to Level a Pool Table Step by Step

1. Choose a Stable, Flat Location

Set the table on a firm, even floor away from thick carpet or padding that lets legs sink unevenly over time. Hardwood, tile, or low-pile carpet over a solid subfloor gives the most consistent base for a proper installation.

2. Check the Initial Level

Place the level lengthwise down the center of the table, then widthwise at each end and the middle. Note which corners or sides read low so you know where adjustments are needed.

3. Adjust the Legs or Add Shims

If your table has adjustable leg levelers, turn them by hand or with a wrench until the bubble centers at each measuring point. If the legs are fixed, slide thin shims underneath the low corner, working from the thinnest shim up until the reading evens out. Avoid stacking too many shims in one spot, since that can create a wobble instead of a stable base.

4. Fine-Tune With a Ball Roll Test

Place a cue ball at the center of the table and let it sit still. If it drifts, that direction is still low. Roll it slowly from multiple spots and directions to confirm the surface plays true, since fast cloth can accentuate even minor roll-off that a level alone might not catch.

5. Recheck Every Angle

Go back over all the points you checked in step two. Adjusting one leg or shim often shifts the reading elsewhere, so repeat the level check and ball test until every position reads flat and balls stay still.

Level vs. Flat: Why the Difference Matters

Level means the surface is horizontal relative to the ground. Flat means the slate itself has no dips, humps, or seam mismatches, which matters most on multi-piece slate tables where the panels meet. A table can be perfectly level on a wobbly leg check and still play poorly if the slate seams aren't flush, which is why professional installers check both separately during a full leveling service.

Leveling on Carpet or an Uneven Floor

Thick carpet compresses unevenly under a table's weight, so legs can sink at different rates even after a correct initial leveling. Place a small hardwood block, furniture coaster, or wide-footed leveler pad under each leg before adjusting, then level as usual. On an uneven floor, you may need thicker shims on one side of the table permanently, and it's worth rechecking the level every few months rather than assuming it will hold.

Leveling Without a Dedicated Level

If you don't own a level, a smartphone leveling app placed directly on the rail or slate works as a reasonable substitute. You can also use the ball roll test alone: place a ball at several points across the table and watch which direction it drifts, then shim or adjust legs accordingly until it stays still everywhere you test.

Choosing the Right Shims

Wood shims are inexpensive and easy to trim to size, but they can compress or slip over time. Composite or plastic shims with a textured, non-slip surface hold their thickness longer and resist shifting under the table's weight. Keep a range of thicknesses on hand, from paper-thin to about 1/8 inch, so you can fine-tune without overcorrecting.

When to Call a Professional

If your table won't hold level after repeated adjustments, the legs are worn or cracked, the frame is loose, or the slate seams have separated, the problem usually goes beyond a simple shim fix. A structural repair or full releveling by a technician who works with slate seams and frame alignment is the more reliable fix at that point. If you're setting up a table for the first time or moving one into a new room, booking delivery and installation service ensures it's leveled correctly from day one. For ongoing issues, our team also handles on-site leveling and repair requests across our service areas.

Frequently Asked Questions

How do you fix an uneven pool table?

Place a level on the playing surface, note which corner sits low, then turn that leg's leveler or add a thin shim underneath until the bubble centers. Check the table from multiple angles since fixing one corner can throw off another, and repeat the process until the level reads even everywhere.

What is the easiest way to level a pool table?

The fastest method is using a table with built-in adjustable leg levelers. Set a level on the rail, turn each leveler clockwise or counterclockwise until the bubble centers, and confirm with a slow cue ball roll test across the cloth.

What is the best tool to level a pool table?

A machinist's level gives the most precise reading because it is far more sensitive than a standard carpenter's level. For most home tables, a quality torpedo or carpenter's level combined with a set of shims is accurate enough to get a fair playing surface.

What is the best level to level a pool table?

A machinist's level, which measures in thousandths of an inch, is the professional standard for pool table leveling. A 24 inch carpenter's level works well for a practical, non-competition setup as long as it is checked for accuracy first.

How do you level a pool table on carpet?

Slide a solid, non-compressible base such as a small hardwood block or furniture coaster under each leg before leveling, since thick carpet lets legs sink unevenly over time. Level the table as usual with a carpenter's level and shims once the legs sit on a stable base.

How tight does a pool table leveling tolerance need to be?

Competition specs call for slate flatness within about 0.020 inches lengthwise and 0.010 inches across the width, with some tournament tables leveled to within 0.005 inches. For casual home play, getting the bubble centered on a standard carpenter's level and confirming with a ball roll test is a reasonable standard.